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WO2019007045A1 - 光学成像镜头 - Google Patents

光学成像镜头 Download PDF

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Publication number
WO2019007045A1
WO2019007045A1 PCT/CN2018/074544 CN2018074544W WO2019007045A1 WO 2019007045 A1 WO2019007045 A1 WO 2019007045A1 CN 2018074544 W CN2018074544 W CN 2018074544W WO 2019007045 A1 WO2019007045 A1 WO 2019007045A1
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WO
WIPO (PCT)
Prior art keywords
lens
optical imaging
object side
image side
imaging lens
Prior art date
Application number
PCT/CN2018/074544
Other languages
English (en)
French (fr)
Inventor
闻人建科
杨林
Original Assignee
浙江舜宇光学有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201710546349.9A external-priority patent/CN107102425B/zh
Priority claimed from CN201720811693.1U external-priority patent/CN206930824U/zh
Application filed by 浙江舜宇光学有限公司 filed Critical 浙江舜宇光学有限公司
Priority to US16/226,257 priority Critical patent/US10976519B2/en
Publication of WO2019007045A1 publication Critical patent/WO2019007045A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/64—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having more than six components

Definitions

  • the present application relates to an optical imaging lens, and more particularly, to an optical imaging lens including seven lenses.
  • the conventional means is to reduce the number of lenses of the optical imaging lens as much as possible.
  • the reduction in the number of lenses results in a lack of lens design freedom, making it difficult for the lens to meet the market's need for high imaging performance.
  • the present application provides an optical imaging lens that can be adapted for use in a portable electronic product that can at least solve or partially address at least one of the above disadvantages of the prior art.
  • An aspect of the present application provides an optical imaging lens including, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth a lens, a sixth lens, and a seventh lens.
  • the first lens, the fourth lens, and the fifth lens each have a positive power or a negative power;
  • the second lens may have a positive power;
  • the third lens may have a negative power;
  • the sixth lens and the seventh lens At least one may have a negative power.
  • the effective focal length f1 of the first lens and the effective focal length f2 of the second lens can satisfy f2/
  • the total effective focal length f of the optical imaging lens and the effective focal length f3 of the third lens may satisfy -1.0 ⁇ f / f3 ⁇ -0.5.
  • the total effective focal length f of the optical imaging lens and the effective focal length f4 of the fourth lens may satisfy f/
  • the total effective focal length f of the optical imaging lens, the effective focal length f5 of the fifth lens, and the effective focal length f6 of the sixth lens may satisfy 0.4 ⁇
  • the total effective focal length f of the optical imaging lens and the effective focal length f7 of the seventh lens may satisfy f/
  • the center thickness CT4 of the fourth lens on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, and the center thickness CT6 of the sixth lens on the optical axis may satisfy (CT4+CT5+CT6). /3 ⁇ 0.5.
  • the edge thickness ET4 of the fourth lens at the maximum radius and the center thickness CT4 of the fourth lens on the optical axis may satisfy 0.4 ⁇ ET4 / CT4 ⁇ 1.0.
  • the object side of the first lens may be convex.
  • the image side of the fourth lens may be concave.
  • the image side of the sixth lens may be concave.
  • the radius of curvature R2 of the image side of the first lens and the radius of curvature R3 of the object side of the second lens may satisfy 0.8 ⁇ R2/R3 ⁇ 1.0.
  • the radius of curvature R3 of the object side of the second lens and the radius of curvature R4 of the image side of the second lens may satisfy -0.5 ⁇ R3/R4 ⁇ 0.
  • the radius of curvature R6 of the image side of the third lens and the radius of curvature R5 of the object side of the third lens may satisfy 0 ⁇ R6/R5 ⁇ 0.5.
  • the radius of curvature R7 of the object side of the fourth lens and the radius of curvature R8 of the image side of the fourth lens may satisfy 0 ⁇ R7/R8 ⁇ 1.5.
  • the radius of curvature R9 of the object side surface of the fifth lens and the curvature radius R12 of the image side surface of the sixth lens may satisfy
  • the distance TTL of the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis is half of the diagonal length ImgH of the effective pixel area of the photosensitive element on the imaging surface of the optical imaging lens. TTL/ImgH ⁇ 1.85.
  • An aspect of the present application provides an optical imaging lens including, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens a sixth lens and at least one subsequent lens. At least one of the first lens, the fourth lens, and the fifth lens may have a positive power; the second lens has a positive power; the third lens has a negative power; and the sixth lens has a positive power or a negative power .
  • the center thickness CT4 of the fourth lens on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, and the center thickness CT6 of the sixth lens on the optical axis satisfy (CT4+CT5+CT6)/3 ⁇ 0.5 .
  • the distance TTL of the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis is half of the diagonal length ImgH of the effective pixel area of the photosensitive element on the imaging surface of the optical imaging lens. TTL/ImgH ⁇ 1.85.
  • the effective focal length f1 of the first lens and the effective focal length f2 of the second lens may satisfy f2/
  • the total effective focal length f of the optical imaging lens and the effective focal length f3 of the third lens may satisfy -1.0 ⁇ f / f3 ⁇ -0.5.
  • the total effective focal length f of the optical imaging lens and the effective focal length f4 of the fourth lens may satisfy f/
  • the total effective focal length f of the optical imaging lens, the effective focal length f5 of the fifth lens, and the effective focal length f6 of the sixth lens may satisfy 0.4 ⁇
  • the radius of curvature R2 of the image side of the first lens and the radius of curvature R3 of the object side of the second lens may satisfy 0.8 ⁇ R2/R3 ⁇ 1.0.
  • the radius of curvature R3 of the object side of the second lens and the radius of curvature R4 of the image side of the second lens may satisfy -0.5 ⁇ R3/R4 ⁇ 0.
  • the radius of curvature R6 of the image side of the third lens and the radius of curvature R5 of the object side of the third lens may satisfy 0 ⁇ R6/R5 ⁇ 0.5.
  • the image side of the fourth lens may be a concave surface; and the radius of curvature R7 of the object side of the fourth lens and the curvature radius R8 of the image side of the fourth lens may satisfy 0 ⁇ R7/R8 ⁇ 1.5.
  • the edge thickness ET4 of the fourth lens at the maximum radius and the center thickness CT4 of the fourth lens on the optical axis may satisfy 0.4 < ET4 / CT4 < 1.0.
  • the image side of the sixth lens may be a concave surface; and the radius of curvature R9 of the object side of the fifth lens and the curvature radius R12 of the image side of the sixth lens may satisfy
  • the at least one subsequent lens comprises a seventh lens having positive or negative power, the effective focal length f7 and the total effective focal length f of the optical imaging lens being such that f/
  • Another aspect of the present application also provides an optical imaging lens including, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a first A five lens, a sixth lens, and a seventh lens.
  • the object side surface of the first lens is a convex surface
  • the curvature radius R3 of the object side surface of the second lens and the curvature radius R4 of the image side surface of the second lens can satisfy -0.5 ⁇ R3/R4 ⁇ 0
  • the radius of curvature R5 and the curvature radius R6 of the image side surface of the third lens may satisfy 0 ⁇ R6/R5 ⁇ 0.5
  • the image side surfaces of the fourth lens and the sixth lens may both be concave
  • the object side and the image side of the fifth lens At least one of may be a convex surface
  • at least one of the object side and the image side of the seventh lens may be a concave surface.
  • the radius of curvature R7 of the object side of the fourth lens and the radius of curvature R8 of the image side of the fourth lens may satisfy 0 ⁇ R7/R8 ⁇ 1.5.
  • the radius of curvature R9 of the object side surface of the fifth lens and the curvature radius R12 of the image side surface of the sixth lens may satisfy
  • the second lens may have a positive power; the effective focal length f1 of the first lens and the effective focal length f2 of the second lens may satisfy f2/
  • the third lens may have a negative power; the total effective focal length f of the optical imaging lens and the effective focal length f3 of the third lens may satisfy -1.0 ⁇ f / f3 ⁇ -0.5.
  • At least one of the first lens, the fourth lens, and the fifth lens may have positive power.
  • the total effective focal length f of the optical imaging lens and the effective focal length f4 of the fourth lens may satisfy f/
  • At least one of the sixth lens and the seventh lens may have a negative power.
  • the total effective focal length f of the optical imaging lens, the effective focal length f5 of the fifth lens, and the effective focal length f6 of the sixth lens may satisfy 0.4 ⁇
  • the total effective focal length f of the optical imaging lens and the effective focal length f7 of the seventh lens may satisfy f/
  • the edge thickness ET4 of the fourth lens at the maximum radius and the center thickness CT4 of the fourth lens on the optical axis may satisfy 0.4 ⁇ ET4 / CT4 ⁇ 1.0.
  • the distance TTL of the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis is half of the diagonal length ImgH of the effective pixel area of the photosensitive element on the imaging surface of the optical imaging lens. TTL/ImgH ⁇ 1.85.
  • the center thickness CT4 of the fourth lens on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, and the center thickness CT6 of the sixth lens on the optical axis may satisfy (CT4+CT5+CT6). /3 ⁇ 0.5.
  • Another aspect of the present application also provides an optical imaging lens including, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a first A five lens, a sixth lens, and a seventh lens.
  • the first lens has a positive power or a negative power, the object side is a convex surface; the second lens may have a positive power; the third lens may have a negative power; and the fourth lens has a positive power or a negative power , the image side is a concave surface; the fifth lens has a positive power or a negative power; the sixth lens has a positive power or a negative power, the image side is a concave surface; and the seventh lens has a positive power or a negative light Power.
  • the radius of curvature R9 of the object side surface of the fifth lens and the curvature radius R12 of the image side surface of the sixth lens may satisfy
  • Another aspect of the present application also provides an optical imaging lens including, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a first A five lens, a sixth lens, and a seventh lens.
  • the first lens has a positive power or a negative power, the object side is a convex surface; the second lens may have a positive power; the third lens may have a negative power; and the fourth lens has a positive power or a negative power , the image side is a concave surface; the fifth lens has a positive power or a negative power; the sixth lens has a positive power or a negative power, the image side is a concave surface; and the seventh lens has a positive power or a negative light Power.
  • the edge thickness ET4 of the fourth lens at the maximum radius and the center thickness CT4 of the fourth lens on the optical axis may satisfy 0.4 ⁇ ET4/CT4 ⁇ 1.0.
  • Another aspect of the present application also provides an optical imaging lens including, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a first A five lens, a sixth lens, and a seventh lens.
  • the first lens has a positive power or a negative power, the object side is a convex surface; the second lens may have a positive power; the third lens may have a negative power; and the fourth lens has a positive power or a negative power , the image side is a concave surface; the fifth lens has a positive power or a negative power; the sixth lens has a positive power or a negative power, the image side is a concave surface; and the seventh lens has a positive power or a negative light Power.
  • the radius of curvature R2 of the image side surface of the first lens and the radius of curvature R3 of the object side surface of the second lens may satisfy 0.8 ⁇ R2/R3 ⁇ 1.0.
  • the present application can employ, for example, seven lenses.
  • the optical imaging lens has at least one of the following advantages by reasonably distributing the power, the surface shape, the center thickness of each lens, and the on-axis spacing of each lens in the optical imaging lens. :
  • FIG. 1 is a schematic structural view of an optical imaging lens according to Embodiment 1 of the present application.
  • 2A to 2D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 1;
  • FIG. 3 is a schematic structural view of an optical imaging lens according to Embodiment 2 of the present application.
  • 4A to 4D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 2.
  • FIG. 5 is a schematic structural view of an optical imaging lens according to Embodiment 3 of the present application.
  • 6A to 6D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 3.
  • FIG. 7 is a schematic structural view of an optical imaging lens according to Embodiment 4 of the present application.
  • 8A to 8D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 4;
  • FIG. 9 is a schematic structural view of an optical imaging lens according to Embodiment 5 of the present application.
  • 10A to 10D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 5;
  • FIG. 11 is a schematic structural view of an optical imaging lens according to Embodiment 6 of the present application.
  • 12A to 12D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 6;
  • FIG. 13 is a schematic structural view of an optical imaging lens according to Embodiment 7 of the present application.
  • 14A to 14D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 7;
  • FIG. 15 is a schematic structural view of an optical imaging lens according to Embodiment 8 of the present application.
  • 16A to 16D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 8;
  • FIG. 17 is a schematic structural view of an optical imaging lens according to Embodiment 9 of the present application.
  • 18A to 18D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 9;
  • FIG. 19 is a schematic structural view of an optical imaging lens according to Embodiment 10 of the present application.
  • 20A to 20D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 10.
  • first, second, third, etc. are used to distinguish one feature from another, and do not represent any limitation of the feature.
  • first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
  • the thickness, size, and shape of the lens have been somewhat exaggerated for convenience of explanation.
  • the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the spherical or aspherical shape shown in the drawings.
  • the drawings are only examples and are not to scale.
  • a paraxial region refers to a region near the optical axis. If the surface of the lens is convex and the position of the convex surface is not defined, it indicates that the surface of the lens is convex at least in the paraxial region; if the surface of the lens is concave and the position of the concave surface is not defined, it indicates that the surface of the lens is at least in the paraxial region. Concave.
  • the surface closest to the object in each lens is referred to as the object side, and the surface of each lens closest to the image plane is referred to as the image side.
  • An optical imaging lens includes, for example, seven lenses having powers, that is, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens . These seven lenses are sequentially arranged from the object side to the image side along the optical axis.
  • the optical imaging lens may further include a photosensitive element disposed on the imaging surface.
  • the photosensitive element disposed on the imaging surface may be a photosensitive coupling element (CCD) or a complementary oxidized metal semiconductor element (CMOS).
  • CCD photosensitive coupling element
  • CMOS complementary oxidized metal semiconductor element
  • the first lens has a positive power or a negative power
  • the object side may be a convex surface
  • the image side may be a concave surface
  • the second lens may have a positive power
  • the object side may be a convex surface, like The side surface may be a convex surface
  • the third lens may have a negative power
  • the object side may be a convex surface
  • the image side may be a concave surface
  • the fourth lens has a positive power or a negative power
  • the object side may be a convex surface, like the side surface Can be a concave surface
  • the fifth lens has positive or negative power
  • the sixth lens has positive or negative power
  • the image side can be concave
  • the seventh lens has positive or negative power
  • the side of the object may be a convex surface, and the side surface may be a concave surface.
  • the effective focal length f1 of the first lens and the effective focal length f2 of the second lens may satisfy f2/
  • a reasonable configuration of the effective focal lengths of the first lens and the second lens helps to shorten the overall length of the optical system while facilitating correction of axial chromatic aberration.
  • the effective focal length f3 of the third lens and the total effective focal length f of the optical imaging lens may satisfy -1.0 ⁇ f / f3 ⁇ -0.5, and more specifically, between 0.8 and f may further satisfy -0.82 ⁇ f / f3 ⁇ - 0.54.
  • Properly configuring the total effective focal length f of the optical imaging lens and the effective focal length f3 of the third lens can balance the variation of the refractive power of the lens lens group and improve the imaging quality of the lens.
  • the effective focal length f4 of the fourth lens and the total effective focal length f of the optical imaging lens may satisfy f/
  • Reasonably distributing the total effective focal length f of the optical imaging lens and the effective focal length f4 of the fourth lens can effectively reduce the deflection angle of the light and reduce the sensitivity of the optical system.
  • the effective focal length f5 of the fifth lens, the effective focal length f6 of the sixth lens, and the total effective focal length f of the optical imaging lens may satisfy 0.4 ⁇
  • the total effective focal length f of the optical imaging lens and the effective focal length of the fifth lens and the sixth lens help to adjust the curvature of field and astigmatism of the imaging edge, and improve the imaging quality of the lens.
  • the effective focal length f7 of the seventh lens and the total effective focal length f of the optical imaging lens may satisfy f/
  • Reasonably distributing the total effective focal length f of the optical imaging lens and the effective focal length f7 of the seventh lens can effectively reduce the deflection angle of the light and reduce the sensitivity of the optical system.
  • the radius of curvature of each lens mirror can be reasonably configured to achieve better optical characteristics.
  • the second lens has a positive power, which is a converging lens, and the radius of curvature R3 of the object side and the radius of curvature R4 of the image side can satisfy -0.5 ⁇ R3/R4 ⁇ 0, more specifically, between R3 and R4. Satisfy -0.35 ⁇ R3 / R4 ⁇ -0.10.
  • Reasonably controlling the radius of curvature of the side surface and the image side of the second lens object can better converge the light on the object side and reduce the vertical color difference of the system.
  • the third lens has a negative refractive power and is a diverging lens.
  • the radius of curvature R5 of the object side and the radius of curvature R6 of the image side can satisfy 0 ⁇ R6/R5 ⁇ 0.5, and more specifically, between R5 and R6. It satisfies 0.22 ⁇ R6 / R5 ⁇ 0.33.
  • the radius of curvature of the side surface of the third lens and the side of the object can be reasonably controlled, which can reasonably reduce the incident angle of the light, reduce the sensitivity of the system, and ensure the stability of the assembly.
  • the radius of curvature R7 of the object side surface of the fourth lens and the radius of curvature R8 of the image side surface of the fourth lens may satisfy 0 ⁇ R7/R8 ⁇ 1.5, and more specifically, between R7 and R8 may further satisfy 0.32 ⁇ R7/R8. ⁇ 1.10.
  • a reasonable distribution of the radius of curvature of the side surface of the fourth lens and the side of the image allows the system to obtain a smaller vertical chromatic aberration.
  • the radius of curvature R9 of the object side of the fifth lens and the radius of curvature R12 of the image side of the sixth lens may satisfy
  • Reasonable control of the distribution of the radius of curvature of the side of the fifth lens and the side of the sixth lens image allows the system to achieve a smaller axial chromatic aberration.
  • the center thickness CT4 of the fourth lens on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, and the center thickness CT6 of the sixth lens on the optical axis may satisfy (CT4+CT5+CT6)/3 ⁇ 0.5. More specifically, CT0, CT5, and CT6 can further satisfy 0.30 ⁇ (CT4 + CT5 + CT6) / 3 ⁇ 0.45.
  • the center thicknesses of the fourth lens, the fifth lens, and the sixth lens are reasonably arranged such that the fourth lens, the fifth lens, and the sixth lens have a more reasonable space utilization ratio and meet the assembly process requirements.
  • the optical total length TTL of the optical imaging lens (ie, the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis) is half the diagonal length of the effective pixel area of the photosensitive element on the imaging surface of the optical imaging lens TTL/ImgH ⁇ 1.85 can be satisfied between ImgH, and more specifically, TTL and ImgH can further satisfy 1.37 ⁇ TTL / ImgH ⁇ 1.84.
  • Reasonable configuration of TTL and ImgH is beneficial to reduce the aberration of the edge field of view; at the same time, it can effectively compress the size of the system to ensure the ultra-thin characteristics and miniaturization of the lens.
  • the optical inter-optical imaging lens may further be provided with at least one aperture as needed.
  • a stop for limiting the light beam (for example, an aperture stop) may be disposed between the object side and the first lens to improve the imaging quality of the optical imaging lens.
  • the above optical imaging lens may further include a filter for correcting the color deviation and/or a cover glass for protecting the photosensitive element on the imaging surface.
  • the optical total length of the optical system can be shortened, and the lens can be miniaturized and ultra-thin; Aberration enhances the imaging quality of the lens; it reduces the sensitivity of manufacturing manufacturing errors and ensures assembly stability.
  • each of the lenses having power can adopt an aspherical lens to eliminate aberrations occurring at the time of imaging as much as possible, thereby further improving the imaging quality of the optical imaging system.
  • the use of an aspherical lens not only can significantly improve the image quality, reduce the aberration, but also reduce the number of lenses and reduce the lens volume.
  • optical imaging system is not limited to including seven lenses.
  • the optical imaging lens can also include other numbers of lenses if desired.
  • FIG. 1 is a block diagram showing the structure of an optical imaging lens according to Embodiment 1 of the present application.
  • the optical imaging lens sequentially includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens from the object side to the imaging side along the optical axis.
  • the optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.
  • the first lens E1 has a positive refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens E2 has positive refractive power, the object side surface S3 is a convex surface, the image side surface S4 is a convex surface, and the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a concave surface
  • the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a concave surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the sixth lens E6 has a positive refractive power, the object side surface S11 is a convex surface, the image side surface S12 is a concave surface, and the object side surface S11 and the image side surface S12 of the sixth lens E6 are aspherical surfaces.
  • the seventh lens E7 has a negative refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface
  • the object side surface S13 and the image side surface S14 of the seventh lens E7 are aspherical surfaces.
  • the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the image plane S17.
  • a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the image plane S17.
  • a stop STO for limiting the light beam may be disposed between the object side and the first lens E1 to improve the imaging quality of the optical imaging lens.
  • Table 1 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 1, in which the unit of curvature radius and thickness are all millimeters (mm).
  • each aspherical surface type x is defined by the following formula:
  • x is the distance of the aspherical surface at height h from the optical axis, and the distance from the aspherical vertex is high;
  • k is the conic coefficient (given in Table 1);
  • Ai is the correction coefficient of the a-th order of the aspherical surface.
  • Table 2 gives the high order term coefficients A 4 , A 6 , A 8 , A 10 , A 12 , A 14 , A 16 , A 18 and A 20 which can be used for each aspherical mirror surface S1-S14 in the embodiment 1. .
  • Table 3 below gives the effective focal lengths f1 to f7 of the lenses in the optical imaging lens of Embodiment 1, the total effective focal length f of the optical imaging lens, and the optical total length TTL of the optical imaging lens (ie, from the object side of the first lens E1)
  • the distance from S1 to the imaging plane S17 on the optical axis) and the half of the diagonal length of the effective pixel area of the photosensitive element on the imaging surface S17 of the optical imaging lens are ImgH.
  • 2A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates that light of different wavelengths is deviated from a focus point after the lens.
  • 2B shows an astigmatism curve of the optical imaging lens of Embodiment 1, which shows meridional field curvature and sagittal image plane curvature.
  • 2C shows a distortion curve of the optical imaging lens of Embodiment 1, which shows distortion magnitude values in the case of different viewing angles.
  • 2D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates a deviation of different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging lens given in Embodiment 1 can achieve good imaging quality.
  • FIG. 3 is a block diagram showing the structure of an optical imaging lens according to Embodiment 2 of the present application.
  • the optical imaging lens sequentially includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens from the object side to the imaging side along the optical axis.
  • the optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.
  • the first lens E1 has a positive refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens E2 has positive refractive power, the object side surface S3 is a convex surface, the image side surface S4 is a convex surface, and the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, the image side surface S8 is a concave surface, and the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a concave surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, the image side surface S12 is a concave surface, and the object side surface S11 and the image side surface S12 of the sixth lens E6 are both aspherical surfaces.
  • the seventh lens E7 has a negative refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface
  • the object side surface S13 and the image side surface S14 of the seventh lens E7 are aspherical surfaces.
  • the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a stop STO for limiting the light beam may be disposed between the object side and the first lens E1 to improve the imaging quality of the optical imaging lens.
  • Table 4 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 2, in which the unit of curvature radius and thickness are all millimeters (mm).
  • Table 5 shows the high order term coefficients that can be used for each of the aspherical mirrors in Example 2.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 6 shows the effective focal lengths f1 to f7 of the respective lenses in the optical imaging lens of Example 2, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the photosensitive elements on the imaging surface S17 of the optical imaging lens The effective pixel area is half the length of the diagonal ImgH.
  • 4A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows that light of different wavelengths is deviated from a focus point after the lens.
  • 4B shows an astigmatism curve of the optical imaging lens of Embodiment 2, which shows meridional field curvature and sagittal image plane curvature.
  • 4C shows a distortion curve of the optical imaging lens of Embodiment 2, which shows distortion magnitude values in the case of different viewing angles.
  • 4D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows deviations of different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging lens given in Embodiment 2 can achieve good imaging quality.
  • FIG. 5 is a block diagram showing the structure of an optical imaging lens according to Embodiment 3 of the present application.
  • the optical imaging lens sequentially includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens from the object side to the imaging side along the optical axis.
  • the optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.
  • the first lens E1 has a positive refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens E2 has positive refractive power, the object side surface S3 is a convex surface, the image side surface S4 is a convex surface, and the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a concave surface
  • the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a convex surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, the image side surface S12 is a concave surface, and the object side surface S11 and the image side surface S12 of the sixth lens E6 are both aspherical surfaces.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface
  • the object side surface S13 and the image side surface S14 of the seventh lens E7 are both aspherical surfaces.
  • the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a stop STO for limiting the light beam may be disposed between the object side and the first lens E1 to improve the imaging quality of the optical imaging lens.
  • Table 7 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 3, wherein the units of the radius of curvature and the thickness are all in millimeters (mm).
  • Table 8 shows the high order term coefficients that can be used for each aspherical mirror in Example 3.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 9 shows the effective focal lengths f1 to f7 of the lenses in the optical imaging lens of Embodiment 3, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the photosensitive elements on the imaging surface S17 of the optical imaging lens The effective pixel area is half the length of the diagonal ImgH.
  • Fig. 6A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 6B shows an astigmatism curve of the optical imaging lens of Embodiment 3, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 6C shows a distortion curve of the optical imaging lens of Embodiment 3, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 6D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 6A to 6D, the optical imaging lens given in Embodiment 3 can achieve good imaging quality.
  • FIG. 7 is a block diagram showing the structure of an optical imaging lens according to Embodiment 4 of the present application.
  • the optical imaging lens sequentially includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens from the object side to the imaging side along the optical axis.
  • the optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.
  • the first lens E1 has a positive refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens E2 has positive refractive power, the object side surface S3 is a convex surface, the image side surface S4 is a convex surface, and the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a concave surface
  • the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a concave surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, the image side surface S12 is a concave surface, and the object side surface S11 and the image side surface S12 of the sixth lens E6 are both aspherical surfaces.
  • the seventh lens E7 has a negative refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface
  • the object side surface S13 and the image side surface S14 of the seventh lens E7 are aspherical surfaces.
  • the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a stop STO for limiting the light beam may be disposed between the object side and the first lens E1 to improve the imaging quality of the optical imaging lens.
  • Table 10 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 4, in which the unit of curvature radius and thickness are both millimeters (mm).
  • Table 11 shows the high order term coefficients that can be used for each aspherical mirror in Example 4.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 12 shows the effective focal lengths f1 to f7 of the respective lenses in the optical imaging lens of Embodiment 4, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the photosensitive elements on the imaging surface S17 of the optical imaging lens The effective pixel area is half the length of the diagonal ImgH.
  • Fig. 8A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows that light of different wavelengths is deviated from the focus point after the lens.
  • Fig. 8B shows an astigmatism curve of the optical imaging lens of Embodiment 4, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 8C shows a distortion curve of the optical imaging lens of Embodiment 4, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 8D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 8A to 8D, the optical imaging lens given in Embodiment 4 can achieve good imaging quality.
  • FIG. 9 is a block diagram showing the structure of an optical imaging lens according to Embodiment 5 of the present application.
  • the optical imaging lens sequentially includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens from the object side to the imaging side along the optical axis.
  • the optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.
  • the first lens E1 has a positive refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens E2 has positive refractive power, the object side surface S3 is a convex surface, the image side surface S4 is a convex surface, and the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, the image side surface S8 is a concave surface, and the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a convex surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, the image side surface S12 is a concave surface, and the object side surface S11 and the image side surface S12 of the sixth lens E6 are aspherical surfaces.
  • the seventh lens E7 has a negative refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface
  • the object side surface S13 and the image side surface S14 of the seventh lens E7 are aspherical surfaces.
  • the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a stop STO for limiting the light beam may be disposed between the object side and the first lens E1 to improve the imaging quality of the optical imaging lens.
  • Table 13 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 5, wherein the units of the radius of curvature and the thickness are all in millimeters (mm).
  • Table 14 shows the high order term coefficients that can be used for each aspherical mirror in Example 5.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 15 shows the effective focal lengths f1 to f7 of the respective lenses in the optical imaging lens of Example 5, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the photosensitive elements on the imaging surface S17 of the optical imaging lens The effective pixel area is half the length of the diagonal ImgH.
  • Fig. 10A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows that light of different wavelengths is deviated from a focus point after passing through the lens.
  • Fig. 10B shows an astigmatism curve of the optical imaging lens of Embodiment 5, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 10C shows a distortion curve of the optical imaging lens of Embodiment 5, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 10D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 10A to 10D, the optical imaging lens given in Embodiment 5 can achieve good imaging quality.
  • FIG. 11 is a view showing the configuration of an optical imaging lens according to Embodiment 6 of the present application.
  • the optical imaging lens sequentially includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens from the object side to the imaging side along the optical axis.
  • the optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.
  • the first lens E1 has a positive refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens E2 has positive refractive power, the object side surface S3 is a convex surface, the image side surface S4 is a convex surface, and the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, the image side surface S8 is a concave surface, and the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a convex surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, the image side surface S12 is a concave surface, and the object side surface S11 and the image side surface S12 of the sixth lens E6 are both aspherical surfaces.
  • the seventh lens E7 has a negative refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface
  • the object side surface S13 and the image side surface S14 of the seventh lens E7 are aspherical surfaces.
  • the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a stop STO for limiting the light beam may be disposed between the object side and the first lens E1 to improve the imaging quality of the optical imaging lens.
  • Table 16 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 6, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 17 shows the high order term coefficients that can be used for each aspherical mirror in Example 6.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 18 shows the effective focal lengths f1 to f7 of the lenses in the optical imaging lens of Example 6, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the photosensitive elements on the imaging surface S17 of the optical imaging lens The effective pixel area is half the length of the diagonal ImgH.
  • Fig. 12A shows an axial chromatic aberration curve of the optical imaging lens of Example 6, which shows that light of different wavelengths is deviated from the focus point after the lens.
  • Fig. 12B shows an astigmatism curve of the optical imaging lens of Example 6, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 12C shows a distortion curve of the optical imaging lens of Embodiment 6, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 12D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 6, which shows the deviation of different image heights on the imaging plane after the light passes through the lens. 12A to 12D, the optical imaging lens given in Embodiment 6 can achieve good imaging quality.
  • FIG. 13 is a view showing the configuration of an optical imaging lens according to Embodiment 7 of the present application.
  • the optical imaging lens sequentially includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens from the object side to the imaging side along the optical axis.
  • the optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.
  • the first lens E1 has a positive refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens E2 has positive refractive power, the object side surface S3 is a convex surface, the image side surface S4 is a convex surface, and the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, the image side surface S8 is a concave surface, and the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a concave surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, the image side surface S12 is a concave surface, and the object side surface S11 and the image side surface S12 of the sixth lens E6 are both aspherical surfaces.
  • the seventh lens E7 has a positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface
  • the object side surface S13 and the image side surface S14 of the seventh lens E7 are aspherical surfaces.
  • the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a stop STO for limiting the light beam may be disposed between the object side and the first lens E1 to improve the imaging quality of the optical imaging lens.
  • Table 19 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 7, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 20 shows the high order term coefficients that can be used for each aspherical mirror in Example 7.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 21 shows the effective focal lengths f1 to f7 of the respective lenses in the optical imaging lens of Example 7, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the photosensitive elements on the imaging surface S17 of the optical imaging lens The effective pixel area is half the length of the diagonal ImgH.
  • Fig. 14A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 7, which indicates that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 14B shows an astigmatism curve of the optical imaging lens of Embodiment 7, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 14C shows a distortion curve of the optical imaging lens of Embodiment 7, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 14D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 7, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 14A to 14D, the optical imaging lens given in Embodiment 7 can achieve good imaging quality.
  • FIG. 15 is a view showing the configuration of an optical imaging lens according to Embodiment 8 of the present application.
  • the optical imaging lens sequentially includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens from the object side to the imaging side along the optical axis.
  • the optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.
  • the first lens E1 has a negative refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens E2 has positive refractive power, the object side surface S3 is a convex surface, the image side surface S4 is a convex surface, and the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens E4 has a negative refractive power
  • the object side surface S7 is a convex surface
  • the image side surface S8 is a concave surface
  • the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the sixth lens E6 has a positive refractive power, the object side surface S11 is a convex surface, the image side surface S12 is a concave surface, and the object side surface S11 and the image side surface S12 of the sixth lens E6 are aspherical surfaces.
  • the seventh lens E7 has a negative refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface
  • the object side surface S13 and the image side surface S14 of the seventh lens E7 are aspherical surfaces.
  • the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a stop STO for limiting the light beam may be disposed between the object side and the first lens E1 to improve the imaging quality of the optical imaging lens.
  • Table 22 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 8, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 23 shows the high order term coefficients that can be used for each of the aspherical mirrors in Example 8.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 24 shows the effective focal lengths f1 to f7 of the lenses in the optical imaging lens of Example 8, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the photosensitive elements on the imaging surface S17 of the optical imaging lens.
  • the effective pixel area is half the length of the diagonal ImgH.
  • Fig. 16A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 8, which indicates that light of different wavelengths is deviated from a focus point after the lens.
  • Fig. 16B shows an astigmatism curve of the optical imaging lens of Embodiment 8, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 16C shows a distortion curve of the optical imaging lens of Embodiment 8, which shows distortion magnitude values in the case of different viewing angles.
  • Fig. 16D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 8, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 16A to 16D, the optical imaging lens given in Embodiment 8 can achieve good imaging quality.
  • FIG. 17 is a view showing the configuration of an optical imaging lens according to Embodiment 9 of the present application.
  • the optical imaging lens sequentially includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens from the object side to the imaging side along the optical axis.
  • the optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.
  • the first lens E1 has a positive refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens E2 has positive refractive power, the object side surface S3 is a convex surface, the image side surface S4 is a convex surface, and the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, the image side surface S8 is a concave surface, and the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, the image side surface S12 is a concave surface, and the object side surface S11 and the image side surface S12 of the sixth lens E6 are both aspherical surfaces.
  • the seventh lens E7 has a negative refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface
  • the object side surface S13 and the image side surface S14 of the seventh lens E7 are aspherical surfaces.
  • the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a stop STO for limiting the light beam may be disposed between the object side and the first lens E1 to improve the imaging quality of the optical imaging lens.
  • Table 25 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 9, in which the unit of curvature radius and thickness are both millimeters (mm).
  • Table 26 shows the high order term coefficients that can be used for each aspherical mirror in Example 9.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 27 shows the effective focal lengths f1 to f7 of the respective lenses in the optical imaging lens of Example 9, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the photosensitive elements on the imaging surface S17 of the optical imaging lens The effective pixel area is half the length of the diagonal ImgH.
  • Fig. 18A shows an axial chromatic aberration curve of the optical imaging lens of Example 9, which shows that light of different wavelengths is deviated from the focus point after the lens.
  • Fig. 18B shows an astigmatism curve of the optical imaging lens of Example 9, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 18C shows a distortion curve of the optical imaging lens of Embodiment 9, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 18D shows a magnification chromatic aberration curve of the optical imaging lens of Example 9, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging lens given in Embodiment 9 can achieve good imaging quality.
  • FIG. 19 is a view showing the configuration of an optical imaging lens according to Embodiment 10 of the present application.
  • the optical imaging lens sequentially includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens from the object side to the imaging side along the optical axis.
  • the optical imaging lens may further include a photosensitive member disposed on the imaging surface S17.
  • the first lens E1 has a positive refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical surfaces.
  • the second lens E2 has positive refractive power, the object side surface S3 is a convex surface, the image side surface S4 is a convex surface, and the object side surface S3 and the image side surface S4 of the second lens E2 are aspherical surfaces.
  • the third lens E3 has a negative refractive power
  • the object side surface S5 is a convex surface
  • the image side surface S6 is a concave surface
  • the object side surface S5 and the image side surface S6 of the third lens E3 are aspherical surfaces.
  • the fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, the image side surface S8 is a concave surface, and the object side surface S7 and the image side surface S8 of the fourth lens E4 are aspherical surfaces.
  • the fifth lens E5 has a positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface
  • the object side surface S9 and the image side surface S10 of the fifth lens E5 are aspherical surfaces.
  • the sixth lens E6 has a positive refractive power, the object side surface S11 is a convex surface, the image side surface S12 is a concave surface, and the object side surface S11 and the image side surface S12 of the sixth lens E6 are aspherical surfaces.
  • the seventh lens E7 has a negative refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface
  • the object side surface S13 and the image side surface S14 of the seventh lens E7 are aspherical surfaces.
  • the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a filter E8 having an object side S15 and an image side S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging plane S17.
  • a stop STO for limiting the light beam may be disposed between the object side and the first lens E1 to improve the imaging quality of the optical imaging lens.
  • Table 28 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 10, wherein the units of the radius of curvature and the thickness are each mm (mm).
  • Table 29 shows the high order term coefficients that can be used for each of the aspherical mirrors in Example 10.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 30 shows the effective focal lengths f1 to f7 of the lenses in the optical imaging lens of Example 10, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the photosensitive elements on the imaging surface S17 of the optical imaging lens.
  • the effective pixel area is half the length of the diagonal ImgH.
  • Fig. 20A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 10, which shows that light of different wavelengths is deviated from a focus point after passing through the lens.
  • Fig. 20B shows an astigmatism curve of the optical imaging lens of Embodiment 10, which shows meridional field curvature and sagittal image plane curvature.
  • Fig. 20C shows a distortion curve of the optical imaging lens of Embodiment 10, which shows the distortion magnitude value in the case of different viewing angles.
  • Fig. 20D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 10, which shows deviations of different image heights on the imaging plane after the light passes through the lens.
  • the optical imaging lens given in Embodiment 10 can achieve good imaging quality.
  • Embodiments 1 to 10 respectively satisfy the relationships shown in Table 31 below.
  • the present application also provides an image forming apparatus whose electronic photosensitive element may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS).
  • the imaging device may be a stand-alone imaging device such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone.
  • the imaging device is equipped with the optical imaging lens described above.

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Abstract

一种光学成像镜头，沿着光轴由物侧至像侧依序包括：第一透镜(E1)、第二透镜（E2）、第三透镜(E3)、第四透镜(E4)、第五透镜(E5)、第六透镜(E6)以及第七透镜(E7)。第一透镜、第四透镜和第五透镜均具有正光焦度或负光焦度；第二透镜具有正光焦度；第三透镜具有负光焦度；第六透镜和第七透镜中的至少一个具有负光焦度。其中，第一透镜的有效焦距f1与第二透镜的有效焦距f2满足f2/|f1|＜0.5。

Description

光学成像镜头
相关申请的交叉引用
本申请要求于2017年7月6日提交于中国国家知识产权局(SIPO)的、专利申请号为201710546349.9的中国专利申请以及于2017年7月6日提交至SIPO的、专利申请号为201720811693.1的中国专利申请的优先权和权益，以上中国专利申请通过引用整体并入本文。
技术领域
本申请涉及一种光学成像镜头，更具体地，本申请涉及一种包括七片透镜的光学成像镜头。
背景技术
随着科技的发展，便携式电子产品逐步兴起，特别是具有摄像功能的便携式电子产品得到人们更多的青睐。近年来，随着常用感光元件感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)等元件性能的提高及尺寸的减小，对于相配套使用的光学成像镜头的高成像品质及小型化均提出了更高的要求，从而增加了镜头的设计难度。
为了满足小型化，常规手段是尽可能地减少光学成像镜头的镜片数量。但是，镜片的数量的减少会造成镜头设计自由度的缺失，使得镜头难以满足市场对于高成像性能的需求。
发明内容
本申请提供了可适用于便携式电子产品的、可至少解决或部分解决现有技术中的上述至少一个缺点的光学成像镜头。
本申请的一个方面提供了这样一种光学成像镜头，该光学成像镜头沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜以及第七透镜。第一透镜、第四透镜和第五透镜均具有正光焦度或负光焦度；第二透镜可具有正光焦度；第三透镜可具有负光焦度；第六透镜和第七透镜中的至少一个可具有 负光焦度。其中，第一透镜的有效焦距f1与第二透镜的有效焦距f2可满足f2/|f1|＜0.5。
在一个实施方式中，光学成像镜头的总有效焦距f与第三透镜的有效焦距f3可满足-1.0＜f/f3≤-0.5。
在一个实施方式中，光学成像镜头的总有效焦距f与第四透镜的有效焦距f4可满足f/|f4|≤0.5。
在一个实施方式中，光学成像镜头的总有效焦距f、第五透镜的有效焦距f5以及第六透镜的有效焦距f6可满足0.4≤|f/f5|+|f/f6|≤1.0。
在一个实施方式中，光学成像镜头的总有效焦距f与第七透镜的有效焦距f7可满足f/|f7|＜1.0。
在一个实施方式中，第四透镜于光轴上的中心厚度CT4、第五透镜于光轴上的中心厚度CT5以及第六透镜于光轴上的中心厚度CT6可满足(CT4+CT5+CT6)/3≤0.5。
在一个实施方式中，第四透镜在最大半径处的边缘厚度ET4与第四透镜于光轴上的中心厚度CT4可满足0.4＜ET4/CT4＜1.0。
在一个实施方式中，第一透镜的物侧面可为凸面。
在一个实施方式中，第四透镜的像侧面可为凹面。
在一个实施方式中，第六透镜的像侧面可为凹面。
在一个实施方式中，第一透镜的像侧面的曲率半径R2与第二透镜的物侧面的曲率半径R3可满足0.8≤R2/R3≤1.0。
在一个实施方式中，第二透镜的物侧面的曲率半径R3与第二透镜的像侧面的曲率半径R4可满足-0.5≤R3/R4≤0。
在一个实施方式中，第三透镜的像侧面的曲率半径R6与第三透镜的物侧面的曲率半径R5可满足0＜R6/R5＜0.5。
在一个实施方式中，第四透镜的物侧面的曲率半径R7与第四透镜的像侧面的曲率半径R8可满足0＜R7/R8＜1.5。
在一个实施方式中，第五透镜的物侧面的曲率半径R9与第六透镜的像侧面的曲率半径R12可满足|(R9-R12)/(R9+R12)|≤2.0。
在一个实施方式中，第一透镜的物侧面至光学成像镜头的成像面在光轴上的距离TTL与光学成像镜头的成像面上的感光元件的有效像 素区域对角线长的一半ImgH可满足TTL/ImgH≤1.85。
本申请的一个方面提供了这样一种光学成像镜头，该成像镜头沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜以及至少一个后续透镜。第一透镜、第四透镜和第五透镜中的至少一个可具有正光焦度；第二透镜具有正光焦度；第三透镜具有负光焦度；第六透镜具有正光焦度或负光焦度。其中，第四透镜于光轴上的中心厚度CT4、第五透镜于光轴上的中心厚度CT5以及第六透镜于光轴上的中心厚度CT6可满足(CT4+CT5+CT6)/3≤0.5。
在一个实施方式中，第一透镜的物侧面至光学成像镜头的成像面在光轴上的距离TTL与光学成像镜头的成像面上的感光元件的有效像素区域对角线长的一半ImgH可满足TTL/ImgH≤1.85。
在一个实施方式中，第一透镜的有效焦距f1与第二透镜的有效焦距f2可满足f2/|f1|＜0.5。
在一个实施方式中，光学成像镜头的总有效焦距f与第三透镜的有效焦距f3可满足-1.0＜f/f3≤-0.5。
在一个实施方式中，光学成像镜头的总有效焦距f与第四透镜的有效焦距f4可满足f/|f4|≤0.5。
在一个实施方式中，光学成像镜头的总有效焦距f、第五透镜的有效焦距f5以及第六透镜的有效焦距f6可满足0.4≤|f/f5|+|f/f6|≤1.0。
在一个实施方式中，第一透镜的像侧面的曲率半径R2与第二透镜的物侧面的曲率半径R3可满足0.8≤R2/R3≤1.0。
在一个实施方式中，第二透镜的物侧面的曲率半径R3与第二透镜的像侧面的曲率半径R4可满足-0.5≤R3/R4≤0。
在一个实施方式中，第三透镜的像侧面的曲率半径R6与第三透镜的物侧面的曲率半径R5可满足0＜R6/R5＜0.5。
在一个实施方式中，第四透镜的像侧面可为凹面；以及第四透镜的物侧面的曲率半径R7与第四透镜的像侧面的曲率半径R8可满足0＜R7/R8＜1.5。
在一个实施方式中，第四透镜在最大半径处的边缘厚度ET4与第 四透镜于光轴上的中心厚度CT4可满足0.4＜ET4/CT4＜1.0。
在一个实施方式中，第六透镜的像侧面可为凹面；以及第五透镜的物侧面的曲率半径R9与第六透镜的像侧面的曲率半径R12可满足|(R9-R12)/(R9+R12)|≤2.0。
在一个实施方式中，至少一个后续透镜包括具有正光焦度或负光焦度的第七透镜，其有效焦距f7与光学成像镜头的总有效焦距f可满足f/|f7|＜1.0。
本申请的另一个方面还提供了这样一种光学成像镜头，该光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜以及第七透镜。其中，第一透镜的物侧面为凸面；第二透镜的物侧面的曲率半径R3与第二透镜的像侧面的曲率半径R4可满足-0.5≤R3/R4≤0；第三透镜的物侧面的曲率半径R5与第三透镜的像侧面的曲率半径R6可满足0＜R6/R5＜0.5；第四透镜和第六透镜的像侧面均可为凹面；第五透镜的物侧面和像侧面中的至少一个可为凸面；以及第七透镜的物侧面和像侧面中的至少一个可为凹面。
在一个实施方式中，第四透镜的物侧面的曲率半径R7与第四透镜的像侧面的曲率半径R8可满足0＜R7/R8＜1.5。
在一个实施方式中，第五透镜的物侧面的曲率半径R9与第六透镜的像侧面的曲率半径R12可满足|(R9-R12)/(R9+R12)|≤2.0。
在一个实施方式中，第二透镜可具有正光焦度；第一透镜的有效焦距f1与第二透镜的有效焦距f2可满足f2/|f1|＜0.5。
在一个实施方式中，第三透镜可具有负光焦度；光学成像镜头的总有效焦距f与第三透镜的有效焦距f3可满足-1.0＜f/f3≤-0.5。
在一个实施方式中，第一透镜、第四透镜和第五透镜中的至少一个可具有正光焦度。
在一个实施方式中，光学成像镜头的总有效焦距f与第四透镜的有效焦距f4可满足f/|f4|≤0.5。
在一个实施方式中，第六透镜和第七透镜中的至少一个可具有负光焦度。
在一个实施方式中，光学成像镜头的总有效焦距f、第五透镜的有效焦距f5以及第六透镜的有效焦距f6可满足0.4≤|f/f5|+|f/f6|≤1.0。
在一个实施方式中，光学成像镜头的总有效焦距f与第七透镜的有效焦距f7可满足f/|f7|＜1.0。
在一个实施方式中，第四透镜在最大半径处的边缘厚度ET4与第四透镜于光轴上的中心厚度CT4可满足0.4＜ET4/CT4＜1.0。
在一个实施方式中，第一透镜的物侧面至光学成像镜头的成像面在光轴上的距离TTL与光学成像镜头的成像面上的感光元件的有效像素区域对角线长的一半ImgH可满足TTL/ImgH≤1.85。
在一个实施方式中，第四透镜于光轴上的中心厚度CT4、第五透镜于光轴上的中心厚度CT5以及第六透镜于光轴上的中心厚度CT6可满足(CT4+CT5+CT6)/3≤0.5。
本申请的另一个方面还提供了这样一种光学成像镜头，该光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜以及第七透镜。第一透镜具有正光焦度或负光焦度，其物侧面为凸面；第二透镜可具有正光焦度；第三透镜可具有负光焦度；第四透镜具有正光焦度或负光焦度，其像侧面为凹面；第五透镜具有正光焦度或负光焦度；第六透镜具有正光焦度或负光焦度，其像侧面为凹面；以及第七透镜具有正光焦度或负光焦度。其中，第五透镜的物侧面的曲率半径R9与第六透镜的像侧面的曲率半径R12可满足|(R9-R12)/(R9+R12)|≤2.0。
本申请的另一个方面还提供了这样一种光学成像镜头，该光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜以及第七透镜。第一透镜具有正光焦度或负光焦度，其物侧面为凸面；第二透镜可具有正光焦度；第三透镜可具有负光焦度；第四透镜具有正光焦度或负光焦度，其像侧面为凹面；第五透镜具有正光焦度或负光焦度；第六透镜具有正光焦度或负光焦度，其像侧面为凹面；以及第七透镜具有正光焦度或负光焦度。其中，第四透镜在最大半径处的边缘厚度ET4与第四透镜于光轴上的中心厚度CT4可满足0.4＜ET4/CT4＜1.0。
本申请的另一个方面还提供了这样一种光学成像镜头，该光学成像镜头沿光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜以及第七透镜。第一透镜具有正光焦度或负光焦度，其物侧面为凸面；第二透镜可具有正光焦度；第三透镜可具有负光焦度；第四透镜具有正光焦度或负光焦度，其像侧面为凹面；第五透镜具有正光焦度或负光焦度；第六透镜具有正光焦度或负光焦度，其像侧面为凹面；以及第七透镜具有正光焦度或负光焦度。其中，第一透镜的像侧面的曲率半径R2与第二透镜的物侧面的曲率半径R3可满足0.8≤R2/R3≤1.0。
本申请可采用例如七片透镜，通过合理分配光学成像镜头中各透镜的光焦度、面型，各透镜的中心厚度以及各透镜的轴上间距等，使得该光学成像镜头具有以下至少一个优点：
缩短成像系统总长度；
实现镜头的小型化与超薄特性；
降低系统的敏感度；
校正了各类像差；以及
提高镜头的成像质量。
附图说明
结合附图，通过以下非限制性实施方式的详细描述，本申请的其他特征、目的和优点将变得更加明显。在附图中：
图1示出了根据本申请实施例1的光学成像镜头的结构示意图；
图2A至图2D分别示出了实施例1的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图3示出了根据本申请实施例2的光学成像镜头的结构示意图；
图4A至图4D分别示出了实施例2的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图5示出了根据本申请实施例3的光学成像镜头的结构示意图；
图6A至图6D分别示出了实施例3的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图7示出了根据本申请实施例4的光学成像镜头的结构示意图；
图8A至图8D分别示出了实施例4的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图9示出了根据本申请实施例5的光学成像镜头的结构示意图；
图10A至图10D分别示出了实施例5的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图11示出了根据本申请实施例6的光学成像镜头的结构示意图；
图12A至图12D分别示出了实施例6的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图13示出了根据本申请实施例7的光学成像镜头的结构示意图；
图14A至图14D分别示出了实施例7的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图15示出了根据本申请实施例8的光学成像镜头的结构示意图；
图16A至图16D分别示出了实施例8的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图17示出了根据本申请实施例9的光学成像镜头的结构示意图；
图18A至图18D分别示出了实施例9的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线；
图19示出了根据本申请实施例10的光学成像镜头的结构示意图；
图20A至图20D分别示出了实施例10的光学成像镜头的轴上色差曲线、象散曲线、畸变曲线以及倍率色差曲线。
具体实施方式
为了更好地理解本申请，将参考附图对本申请的各个方面做出更详细的说明。应理解，这些详细说明只是对本申请的示例性实施方式的描述，而非以任何方式限制本申请的范围。在说明书全文中，相同的附图标号指代相同的元件。表述“和/或”包括相关联的所列项目中的一个或多个的任何和全部组合。
应注意，在本说明书中，第一、第二、第三等的表述仅用于将一个特征与另一个特征区分开来，而不表示对特征的任何限制。因此， 在不背离本申请的教导的情况下，下文中讨论的第一透镜也可被称作第二透镜或第三透镜。
在附图中，为了便于说明，已稍微夸大了透镜的厚度、尺寸和形状。具体来讲，附图中所示的球面或非球面的形状通过示例的方式示出。即，球面或非球面的形状不限于附图中示出的球面或非球面的形状。附图仅为示例而并非严格按比例绘制。
在本文中，近轴区域是指光轴附近的区域。若透镜表面为凸面且未界定该凸面位置时，则表示该透镜表面至少于近轴区域为凸面；若透镜表面为凹面且未界定该凹面位置时，则表示该透镜表面至少于近轴区域为凹面。每个透镜中最靠近物体的表面称为物侧面，每个透镜中最靠近成像面的表面称为像侧面。
还应理解的是，用语“包括”、“包括有”、“具有”、“包含”和/或“包含有”，当在本说明书中使用时表示存在所陈述的特征、元件和/或部件，但不排除存在或附加有一个或多个其它特征、元件、部件和/或它们的组合。此外，当诸如“...中的至少一个”的表述出现在所列特征的列表之后时，修饰整个所列特征，而不是修饰列表中的单独元件。此外，当描述本申请的实施方式时，使用“可”表示“本申请的一个或多个实施方式”。并且，用语“示例性的”旨在指代示例或举例说明。
除非另外限定，否则本文中使用的所有用语(包括技术用语和科学用语)均具有与本申请所属领域普通技术人员的通常理解相同的含义。还应理解的是，用语(例如在常用词典中定义的用语)应被解释为具有与它们在相关技术的上下文中的含义一致的含义，并且将不被以理想化或过度正式意义解释，除非本文中明确如此限定。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
以下对本申请的特征、原理和其他方面进行详细描述。
根据本申请示例性实施方式的光学成像镜头包括例如七个具有光焦度的透镜，即第一透镜、第二透镜、第三透镜、第四透镜、第五透 镜、第六透镜和第七透镜。这七个透镜沿着光轴从物侧至像侧依序排列。
根据本申请示例性实施方式的光学成像镜头还可进一步包括设置于成像面的感光元件。可选地，设置于成像面的感光元件可以是感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)。
在示例性实施方式中，第一透镜具有正光焦度或负光焦度，其物侧面可为凸面，像侧面可为凹面；第二透镜可具有正光焦度，其物侧面可为凸面，像侧面可为凸面；第三透镜可具有负光焦度，其物侧面可为凸面，像侧面可为凹面；第四透镜具有正光焦度或负光焦度，其物侧面可为凸面，像侧面可为凹面；第五透镜具有正光焦度或负光焦度；第六透镜具有正光焦度或负光焦度，其像侧面可为凹面；以及第七透镜具有正光焦度或负光焦度，其物侧面可为凸面，像侧面可为凹面。
第一透镜的有效焦距f1与第二透镜的有效焦距f2之间可满足f2/|f1|＜0.5，更具体地，f1和f2进一步可满足0.04≤f2/|f1|≤0.39。对第一透镜和第二透镜有效焦距的合理配置，有助于缩短光学系统的总长度，同时有利于校正轴上色差。
第三透镜的有效焦距f3与光学成像镜头的总有效焦距f之间可满足-1.0＜f/f3≤-0.5，更具体地，f3和f之间进一步可满足-0.82≤f/f3≤-0.54。合理配置光学成像镜头的总有效焦距f与第三透镜的有效焦距f3，可以平衡镜头透镜组的屈折力变化，提升镜头的成像品质。
第四透镜的有效焦距f4与光学成像镜头的总有效焦距f之间可满足f/|f4|≤0.5，更具体地，f4和f之间进一步可满足0.00≤f/|f4|≤0.23。合理分配光学成像镜头的总有效焦距f与第四透镜的有效焦距f4，能有效减小光线的偏转角，降低光学系统的敏感度。
第五透镜的有效焦距f5、第六透镜的有效焦距f6以及光学成像镜头的总有效焦距f之间可满足0.4≤|f/f5|+|f/f6|≤1.0，更具体地，f5、f6和f之间进一步可满足0.44≤|f/f5|+|f/f6|≤0.92。光学成像镜头的总有效焦距f与第五透镜、第六透镜的有效焦距，有助于调整成像边缘的场曲和像散，提升镜头的成像质量。
第七透镜的有效焦距f7与光学成像镜头的总有效焦距f之间可满足f/|f7|＜1.0，更具体地，f7和f之间进一步可满足0.01≤f/|f7|≤0.85。合理分配光学成像镜头的总有效焦距f与第七透镜的有效焦距f7，能有效减小光线的偏转角，降低光学系统的敏感度。
在应用中，可对各透镜镜面的曲率半径进行合理配置，以实现较佳的光学特性。
第一透镜的像侧面的曲率半径R2与第二透镜的物侧面的曲率半径R3之间可满足0.8≤R2/R3≤1.0，更具体地，R2和R3之间进一步可满足0.88≤R2/R3≤0.95。合理的控制第一透镜像侧面和第二透镜物侧面的曲率半径，可以更好地会聚边缘光线，减小轴外慧差，提高镜头的成像质量。
第二透镜具有正光焦度，为会聚透镜，其物侧面的曲率半径R3与像侧面的曲率半径R4之间可满足-0.5≤R3/R4≤0，更具体地，R3和R4之间进一步可满足-0.35≤R3/R4≤-0.10。合理控制第二透镜物侧面和像侧面的曲率半径，可以更好地对其物侧光线进行会聚，降低系统的垂轴色差。
第三透镜具有负光焦度，为发散透镜，其物侧面的曲率半径R5与像侧面的曲率半径R6之间可满足0＜R6/R5＜0.5，更具体地，R5和R6之间进一步可满足0.22≤R6/R5≤0.33。在镜头成像面满足规格的前提下，合理控制第三透镜像侧面和物侧面的曲率半径，能合理地减小光线入射角，降低系统敏感性，并保证组装的稳定性。
第四透镜的物侧面的曲率半径R7与第四透镜的像侧面的曲率半径R8之间可满足0＜R7/R8＜1.5，更具体地，R7和R8之间进一步可满足0.32≤R7/R8≤1.10。合理分配第四透镜物侧面和像侧面的曲率半径，可以使得系统获得更小的垂轴色差。
第五透镜的物侧面的曲率半径R9与第六透镜的像侧面的曲率半径R12之间可满足|(R9-R12)/(R9+R12)|≤2.0，更具体地，R9和R12之间进一步可满足0.07≤|(R9-R12)/(R9+R12)|≤1.60。合理控制分配第五透镜物侧面和第六透镜像侧面的曲率半径，可以使得系统获得更小的轴上色差。
第四透镜于光轴上的中心厚度CT4、第五透镜于光轴上的中心厚度CT5以及第六透镜于光轴上的中心厚度CT6之间可满足(CT4+CT5+CT6)/3≤0.5，更具体地，CT4、CT5和CT6之间进一步可满足0.30≤(CT4+CT5+CT6)/3≤0.45。合理布置第四透镜、第五透镜和第六透镜的中心厚度，使得第四透镜、第五透镜和第六透镜具有更为合理的空间利用率，并满足组装工艺需求。
光学成像镜头的光学总长度TTL(即，从第一透镜的物侧面至光学成像镜头的成像面在光轴上的距离)与光学成像镜头成像面上感光元件有效像素区域对角线长的一半ImgH之间可满足TTL/ImgH≤1.85，更具体地，TTL和ImgH进一步可满足1.37≤TTL/ImgH≤1.84。对TTL和ImgH的合理配置，有利于减小边缘视场的像差；同时，还能够有效地压缩系统的尺寸，保证镜头的超薄特性和小型化。
在示例性实施方式中，上述光学之间成像镜头还可根据需要设置有至少一光阑。例如，可在物侧与第一透镜之间设置有用于限制光束的光阑(例如，孔径光阑)，以提升光学成像镜头的成像质量。
可选地，上述光学成像镜头还可包括用于校正色彩偏差的滤光片和/或用于保护位于成像面上感光元件的保护玻璃。
通过对镜头中透镜数目的合理选取，例如上述实施方式中所述的七片，可以获得较佳的设计自由度，从而更好的满足市场对镜头高成像性能的要求。通过合理分配各透镜的光焦度、面型，各透镜的中心厚度以及各透镜之间的轴上间距等，可以缩短光学系统的光学总长，保证镜头小型化和超薄特性；可以校正各类像差，提升镜头的成像品质；可以降低加工制造误差敏感性，保证组装稳定性。
另外，如本领域技术人员所已知的，非球面透镜具有更佳的曲率半径特性，具有改善歪曲像差及改善像散像差的优点。在本申请的实施方式中，各具有光焦度的透镜均可采用非球面透镜，以尽可能地消除在成像的时候出现的像差，从而进一步提升光学成像系统的成像品质。非球面透镜的使用，不仅可以显著的提高像质，减小像差，还可以减少镜头的镜片数量，缩小镜头体积。
本领域的技术人员还应当理解，在未背离本申请要求保护的技术 方案的情况下，可改变构成光学成像镜头的透镜数量，来获得本说明书中描述的各个结果和优点。例如，虽然在实施方式中以七片透镜为例进行了描述，但是该光学成像系统不限于包括七片透镜。如果需要，该光学成像镜头还可包括其它数量的透镜。
下面参照附图进一步描述可适用于上述实施方式的光学成像镜头的具体实施例。
实施例1
以下参照图1至图2D描述根据本申请实施例1的光学成像镜头。图1示出了根据本申请实施例1的光学成像镜头的结构示意图。
如图1所示，光学成像镜头沿着光轴从物侧至成像侧依序包括第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7和成像面S17。光学成像镜头还可包括设置于成像面S17的感光元件。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，并且第一透镜E1的物侧面S1和像侧面S2均为非球面。
第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，并且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，并且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜E4具有负光焦度，其物侧面S7为凸面，像侧面S8为凹面，并且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜E5具有正光焦度，其物侧面S9为凸面，像侧面S10为凹面，并且第五透镜E5的物侧面S9和像侧面S10均为非球面。
第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凹面，并且第六透镜E6的物侧面S11和像侧面S12均为非球面。
第七透镜E7具有负光焦度，其物侧面S13为凸面，像侧面S14为凹面，并且第七透镜E7的物侧面S13和像侧面S14均为非球面。
可选地，光学成像镜头还可包括具有物侧面S15和像侧面S16的滤光片E8。来自物体的光依序穿过各表面S1至S16并最终成像在成 像面S17上。
可选地，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提升光学成像镜头的成像质量。
表1示出了实施例1的光学成像镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。
Figure PCTCN2018074544-appb-000001
表1
由表1可知，第一透镜E1的像侧面S2的曲率半径R2与第二透镜E2的物侧面S3的曲率半径R3之间满足R2/R3＝0.92；第二透镜E2的物侧面S3的曲率半径R3与第二透镜E2的像侧面S4的曲率半径R4之间满足R3/R4＝-0.35；第三透镜E3的物侧面S5的曲率半径R5与第三透镜E3的像侧面S6的曲率半径R6之间满足R6/R5＝0.22；第四透镜E4的物侧面S7的曲率半径R7与第四透镜E4的像侧面S8的曲率半径R8之间满足R7/R8＝1.08；第五透镜E5的物侧面S9的曲率半径R9与第六透镜E6的像侧面S12的曲率半径R12之间满足 |(R9-R12)/(R9+R12)|＝0.07；第四透镜E4于光轴上的中心厚度CT4、第五透镜E5于光轴上的中心厚度CT5以及第六透镜E6于光轴上的中心厚度CT6之间满足(CT4+CT5+CT6)/3＝0.30。
本实施例采用了七片透镜作为示例，通过合理分配各透镜的焦距、各透镜的面型、各透镜的中心厚度以及各透镜之间的间隔距离，在实现成像镜头小型化的同时，降低镜头的敏感度并提升镜头的成像品质。在本实施例中，各非球面面型x由以下公式限定：
Figure PCTCN2018074544-appb-000002
其中，x为非球面沿光轴方向在高度为h的位置时，距非球面顶点的距离矢高；c为非球面的近轴曲率，c＝1/R(即，近轴曲率c为上表1中曲率半径R的倒数)；k为圆锥系数(在表1中已给出)；Ai是非球面第i-th阶的修正系数。下表2给出了可用于实施例1中各非球面镜面S1-S14的高次项系数A 4、A 6、A 8、A 10、A 12、A 14、A 16、A 18和A 20。
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.9814E-01 -3.2292E-01 4.4170E-01 -5.0199E-01 3.8645E-01 -1.9113E-01 5.8370E-02 -1.0008E-02 7.3800E-04
S2 1.9347E-02 -2.0791E-01 2.1158E-01 -2.2213E-01 3.8643E-01 -4.3362E-01 2.6909E-01 -8.7430E-02 1.1580E-02
S3 5.4620E-03 -1.6261E-01 2.0462E-01 -4.0410E-01 9.3159E-01 -1.1090E+00 6.9077E-01 -2.2074E-01 2.8851E-02
S4 -5.5429E-02 7.4454E-02 -2.6843E-01 5.1903E-01 -5.4114E-01 3.0561E-01 -8.6402E-02 9.1107E-03 1.5514E-04
S5 -8.3040E-02 1.4005E-01 -4.5056E-01 1.0351E+00 -1.6429E+00 1.7540E+00 -1.1795E+00 4.5306E-01 -7.6055E-02
S6 1.0173E-01 -1.6113E-01 2.2797E-01 -2.9521E-01 2.2019E-01 3.6486E-02 -1.7295E-01 1.0809E-01 -2.2411E-02
S7 -4.6717E-02 1.5938E-01 -6.4159E-01 1.4931E+00 -2.2408E+00 2.1013E+00 -1.1606E+00 3.4272E-01 -4.1659E-02
S8 -1.3960E-01 4.3043E-01 -1.5257E+00 3.1574E+00 -4.1823E+00 3.5472E+00 -1.8328E+00 5.2195E-01 -6.2620E-02
S9 -5.2670E-02 3.1052E-01 -1.0896E+00 2.0674E+00 -2.5523E+00 2.0229E+00 -9.7433E-01 2.5740E-01 -2.8478E-02
S10 4.8803E-02 -2.3454E-01 4.3454E-01 -5.1730E-01 3.7797E-01 -1.6879E-01 4.4686E-02 -6.4174E-03 3.8473E-04
S11 2.2435E-01 -5.1892E-01 6.4322E-01 -6.6872E-01 5.1477E-01 -2.6519E-01 8.3743E-02 -1.4440E-02 1.0365E-03
S12 1.1866E-01 -1.5603E-01 1.0317E-02 6.7512E-02 -5.5647E-02 2.2280E-02 -4.9504E-03 5.8021E-04 -2.7914E-05
S13 -3.2033E-01 1.3105E-01 1.7158E-02 -8.8439E-02 7.0055E-02 -2.7323E-02 5.7926E-03 -6.3882E-04 2.8754E-05
S14 -2.4300E-01 1.6952E-01 -9.6721E-02 3.8326E-02 -9.9892E-03 1.6435E-03 -1.6259E-04 8.7887E-06 -1.9893E-07
表2
下表3给出实施例1的光学成像镜头中各透镜的有效焦距f1至f7、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL(即， 从第一透镜E1的物侧面S1至成像面S17在光轴上的距离)以及光学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH。
参数 f1(mm) f2(mm) f3(mm) f4(mm) f5(mm)
数值 12.03 3.70 -5.01 -199.87 20.52
参数 f6(mm) f7(mm) f(mm) TTL(mm) ImgH(mm)
数值 17.29 -8.66 4.09 4.97 2.70
表3
根据表3可得，第一透镜E1的有效焦距f1与第二透镜E2的有效焦距f2之间满足f2/|f1|＝0.31；第三透镜E3的有效焦距f3与光学成像镜头的总有效焦距f之间满足f/f3＝-0.82；第四透镜E4的有效焦距f4与光学成像镜头的总有效焦距f之间满足f/|f4|＝0.02；第五透镜E5的有效焦距f5、第六透镜E6的有效焦距f6以及光学成像镜头的总有效焦距f之间满足|f/f5|+|f/f6|＝0.44；第七透镜E7的有效焦距f7与光学成像镜头的总有效焦距f之间满足f/|f7|＝0.47；光学成像镜头的光学总长度TTL与光学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH之间满足TTL/ImgH＝1.84。
在本实施例的光学成像镜头中，第四透镜E4于光轴上的中心厚度CT4与第四透镜E4在最大半径处的边缘厚度ET4之间满足ET4/CT4＝0.81。
图2A示出了实施例1的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图2B示出了实施例1的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图2C示出了实施例1的光学成像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图2D示出了实施例1的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图2A至图2D可知，实施例1所给出的光学成像镜头能够实现良好的成像品质。
实施例2
以下参照图3至图4D描述根据本申请实施例2的光学成像镜头。在本实施例及以下实施例中，为简洁起见，将省略部分与实施例1相似的描述。图3示出了根据本申请实施例2的光学成像镜头的结构示意图。
如图3所示，光学成像镜头沿着光轴从物侧至成像侧依序包括第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7和成像面S17。光学成像镜头还可包括设置于成像面S17的感光元件。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，并且第一透镜E1的物侧面S1和像侧面S2均为非球面。
第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，并且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，并且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面，并且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜E5具有正光焦度，其物侧面S9为凸面，像侧面S10为凹面，并且第五透镜E5的物侧面S9和像侧面S10均为非球面。
第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹面，并且第六透镜E6的物侧面S11和像侧面S12均为非球面。
第七透镜E7具有负光焦度，其物侧面S13为凸面，像侧面S14为凹面，并且第七透镜E7的物侧面S13和像侧面S14均为非球面。
可选地，光学成像镜头还可包括具有物侧面S15和像侧面S16的滤光片E8。来自物体的光依序穿过各表面S1至S16并最终成像在成像面S17上。
可选地，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提升光学成像镜头的成像质量。
表4示出了实施例2的光学成像镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表5示出了可用于实施例2中各非球面镜面的高次项系数。 其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表6示出了实施例2的光学成像镜头中各透镜的有效焦距f1至f7、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH。
Figure PCTCN2018074544-appb-000003
表4
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 2.1568E-01 -3.7435E-01 5.0620E-01 -5.8492E-01 4.4124E-01 -2.0124E-01 5.3894E-02 -7.8284E-03 4.7720E-04
S2 8.9671E-02 -3.2814E-01 3.0544E-01 -2.8957E-01 3.4510E-01 -2.5526E-01 1.0037E-01 -1.9845E-02 1.5632E-03
S3 -8.0009E-04 1.3832E-01 -8.4595E-01 1.3843E+00 -1.0284E+00 3.9086E-01 -7.7419E-02 8.5688E-03 -6.7175E-04
S4 -4.6929E-02 5.2336E-02 -3.5508E-01 7.6162E-01 -8.0751E-01 4.7557E-01 -1.5780E-01 2.7611E-02 -1.9835E-03
S5 -6.9491E-02 3.1235E-01 -1.2014E+00 2.4058E+00 -2.8517E+00 2.0061E+00 -7.8854E-01 1.5064E-01 -9.3830E-03
S6 9.6408E-02 -2.2380E-01 8.5846E-01 -2.2568E+00 3.5543E+00 -3.4090E+00 1.9512E+00 -6.0568E-01 7.7908E-02
S7 -9.1085E-02 1.9923E-01 -5.3698E-01 1.0069E+00 -1.1522E+00 7.9348E-01 -3.2093E-01 7.0083E-02 -6.3682E-03
S8 -1.4244E-01 2.0372E-01 -5.8597E-01 1.0026E+00 -1.0079E+00 6.1492E-01 -2.2208E-01 4.3608E-02 -3.5907E-03
S9 9.3661E-03 1.8729E-01 -5.9447E-01 8.2254E-01 -7.1947E-01 4.0353E-01 -1.3977E-01 2.7138E-02 -2.2486E-03
S10 7.1234E-02 -1.0899E-01 1.0225E-01 -1.0325E-01 6.2549E-02 -2.0974E-02 3.9117E-03 -3.8200E-04 1.5270E-05
S11 2.3774E-01 -5.1589E-01 4.8805E-01 -3.0329E-01 1.1584E-01 -2.4696E-02 2.4724E-03 -4.0084E-05 -6.8407E-06
S12 1.6380E-01 -2.8938E-01 2.1152E-01 -9.8367E-02 2.9996E-02 -5.8052E-03 6.7861E-04 -4.3460E-05 1.1665E-06
S13 -2.5402E-01 1.3844E-01 -5.2410E-02 1.5891E-02 -3.5018E-03 5.1148E-04 -4.6234E-05 2.3309E-06 -4.9973E-08
S14 -1.6977E-01 1.0073E-01 -4.1395E-02 1.1391E-02 -2.0721E-03 2.4251E-04 -1.7434E-05 6.9687E-07 -1.1803E-08
表5
参数 f1(mm) f2(mm) f3(mm) f4(mm) f5(mm)
数值 32.68 3.30 -6.70 448.38 11.26
参数 f6(mm) f7(mm) f(mm) TTL(mm) ImgH(mm)
数值 -13.69 -115.11 3.66 4.98 3.24
表6
图4A示出了实施例2的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图4B示出了实施例2的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图4C示出了实施例2的光学成像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图4D示出了实施例2的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图4A至图4D可知，实施例2所给出的光学成像镜头能够实现良好的成像品质。
实施例3
以下参照图5至图6D描述了根据本申请实施例3的光学成像镜头。图5示出了根据本申请实施例3的光学成像镜头的结构示意图。
如图5所示，光学成像镜头沿着光轴从物侧至成像侧依序包括第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7和成像面S17。光学成像镜头还可包括设置于成像面S17的感光元件。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，并且第一透镜E1的物侧面S1和像侧面S2均为非球面。
第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，并且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，并且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜E4具有负光焦度，其物侧面S7为凸面，像侧面S8为凹面，并且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜E5具有正光焦度，其物侧面S9为凸面，像侧面S10为凸面，并且第五透镜E5的物侧面S9和像侧面S10均为非球面。
第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹面，并且第六透镜E6的物侧面S11和像侧面S12均为非球面。
第七透镜E7具有正光焦度，其物侧面S13为凸面，像侧面S14为凹面，并且第七透镜E7的物侧面S13和像侧面S14均为非球面。
可选地，光学成像镜头还可包括具有物侧面S15和像侧面S16的滤光片E8。来自物体的光依序穿过各表面S1至S16并最终成像在成像面S17上。
可选地，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提升光学成像镜头的成像质量。
表7示出了实施例3的光学成像镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表8示出了可用于实施例3中各非球面镜面的高次项系数。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表9示出了实施例3的光学成像镜头中各透镜的有效焦距f1至f7、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH。
Figure PCTCN2018074544-appb-000004
Figure PCTCN2018074544-appb-000005
表7
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 2.1630E-01 -4.0114E-01 5.6970E-01 -6.3928E-01 4.5938E-01 -2.0048E-01 5.1727E-02 -7.2827E-03 4.3241E-04
S2 7.6932E-02 -3.4383E-01 3.8004E-01 -3.3919E-01 3.2530E-01 -2.1860E-01 8.3348E-02 -1.6364E-02 1.2921E-03
S3 3.3739E-02 -1.7623E-01 1.2337E-01 -2.1140E-01 5.9860E-01 -6.7654E-01 3.5944E-01 -9.2069E-02 9.2153E-03
S4 -1.9194E-02 -7.3838E-02 -4.1754E-02 3.3266E-01 -4.5982E-01 3.0309E-01 -1.0633E-01 1.9139E-02 -1.3935E-03
S5 -2.5479E-02 2.4295E-02 -4.0605E-01 1.1090E+00 -1.4810E+00 1.0683E+00 -3.9294E-01 5.7956E-02 -1.9945E-04
S6 7.4823E-02 -8.0041E-02 1.5470E-01 -3.8045E-01 6.4804E-01 -6.6922E-01 4.0389E-01 -1.2765E-01 1.6156E-02
S7 -7.2068E-02 1.3875E-01 -3.6346E-01 6.5310E-01 -7.1856E-01 4.8241E-01 -1.9212E-01 4.1472E-02 -3.7258E-03
S8 -1.3912E-01 2.5264E-01 -6.3520E-01 9.2615E-01 -8.2716E-01 4.6556E-01 -1.5976E-01 3.0522E-02 -2.4938E-03
S9 -6.0532E-02 3.6199E-01 -7.5494E-01 8.6188E-01 -6.6208E-01 3.3851E-01 -1.0877E-01 1.9722E-02 -1.5303E-03
S10 -2.3134E-02 1.0232E-01 -9.9439E-02 6.1403E-03 2.7112E-02 -1.4129E-02 3.1620E-03 -3.4164E-04 1.4582E-05
S11 1.9664E-01 -3.7758E-01 3.4950E-01 -2.3163E-01 9.2298E-02 -1.9177E-02 1.5097E-03 7.3566E-05 -1.3294E-05
S12 1.5571E-01 -2.1286E-01 1.2830E-01 -5.4956E-02 1.6580E-02 -3.2181E-03 3.7354E-04 -2.3415E-05 6.0692E-07
S13 -2.2139E-01 8.6294E-02 -1.4592E-02 9.1141E-05 4.9848E-04 -1.0873E-04 1.1212E-05 -5.8396E-07 1.2288E-08
S14 -1.5803E-01 8.1806E-02 -3.1038E-02 8.6596E-03 -1.6783E-03 2.1093E-04 -1.6106E-05 6.7346E-07 -1.1771E-08
表8
参数 f1(mm) f2(mm) f3(mm) f4(mm) f5(mm)
数值 21.24 3.72 -6.80 -163.14 11.19
参数 f6(mm) f7(mm) f(mm) TTL(mm) ImgH(mm)
数值 -16.41 150.22 3.82 4.98 3.39
表9
图6A示出了实施例3的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图6B示出了实施例3的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图6C示出了实施例3的光学成像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图6D示出了实施例3的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图6A至图6D可知，实施例3所给出的光学成像镜头能够实现良好的成像品质。
实施例4
以下参照图7至图8D描述了根据本申请实施例4的光学成像镜 头。图7示出了根据本申请实施例4的光学成像镜头的结构示意图。
如图7所示，光学成像镜头沿着光轴从物侧至成像侧依序包括第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7和成像面S17。光学成像镜头还可包括设置于成像面S17的感光元件。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，并且第一透镜E1的物侧面S1和像侧面S2均为非球面。
第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，并且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，并且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜E4具有负光焦度，其物侧面S7为凸面，像侧面S8为凹面，并且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜E5具有正光焦度，其物侧面S9为凸面，像侧面S10为凹面，并且第五透镜E5的物侧面S9和像侧面S10均为非球面。
第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹面，并且第六透镜E6的物侧面S11和像侧面S12均为非球面。
第七透镜E7具有负光焦度，其物侧面S13为凸面，像侧面S14为凹面，并且第七透镜E7的物侧面S13和像侧面S14均为非球面。
可选地，光学成像镜头还可包括具有物侧面S15和像侧面S16的滤光片E8。来自物体的光依序穿过各表面S1至S16并最终成像在成像面S17上。
可选地，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提升光学成像镜头的成像质量。
表10示出了实施例4的光学成像镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表11示出了可用于实施例4中各非球面镜面的高次项系数。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表12示出了实施例4的光学成像镜头中各透镜的有效焦距f1至f7、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光 学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH。
Figure PCTCN2018074544-appb-000006
表10
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.8632E-01 -2.9331E-01 3.5974E-01 -3.7705E-01 2.5799E-01 -1.0672E-01 2.5924E-02 -3.4155E-03 1.8884E-04
S2 7.7461E-02 -2.5711E-01 2.1707E-01 -1.8666E-01 2.0177E-01 -1.3537E-01 4.8280E-02 -8.6585E-03 6.1861E-04
S3 -6.9115E-04 1.0838E-01 -6.0120E-01 8.9231E-01 -6.0126E-01 2.0728E-01 -3.7240E-02 3.7386E-03 -2.6584E-04
S4 -4.0539E-02 4.1006E-02 -2.5235E-01 4.9095E-01 -4.7214E-01 2.5221E-01 -7.5903E-02 1.2046E-02 -7.8492E-04
S5 -6.0029E-02 2.4474E-01 -8.5382E-01 1.5508E+00 -1.6673E+00 1.0639E+00 -3.7930E-01 6.5726E-02 -3.7132E-03
S6 8.3281E-02 -1.7535E-01 6.1009E-01 -1.4548E+00 2.0782E+00 -1.8079E+00 9.3857E-01 -2.6425E-01 3.0831E-02
S7 -7.8682E-02 1.5610E-01 -3.8162E-01 6.4906E-01 -6.7369E-01 4.2080E-01 -1.5437E-01 3.0577E-02 -2.5201E-03
S8 -1.2304E-01 1.5962E-01 -4.1644E-01 6.4630E-01 -5.8930E-01 3.2611E-01 -1.0682E-01 1.9026E-02 -1.4210E-03
S9 8.0908E-03 1.4675E-01 -4.2248E-01 5.3021E-01 -4.2066E-01 2.1400E-01 -6.7231E-02 1.1840E-02 -8.8983E-04
S10 6.1535E-02 -8.5396E-02 7.2669E-02 -6.6558E-02 3.6571E-02 -1.1123E-02 1.8816E-03 -1.6667E-04 6.0429E-06
S11 2.0537E-01 -4.0422E-01 3.4685E-01 -1.9550E-01 6.7731E-02 -1.3097E-02 1.1892E-03 -1.7488E-05 -2.7071E-06
S12 1.4149E-01 -2.2673E-01 1.5033E-01 -6.3409E-02 1.7538E-02 -3.0786E-03 3.2642E-04 -1.8961E-05 4.6163E-07
S13 -2.1943E-01 1.0847E-01 -3.7247E-02 1.0243E-02 -2.0475E-03 2.7125E-04 -2.2240E-05 1.0170E-06 -1.9776E-08
S14 -1.4665E-01 7.8921E-02 -2.9419E-02 7.3430E-03 -1.2115E-03 1.2861E-04 -8.3860E-06 3.0404E-07 -4.6707E-09
表11
参数 f1(mm) f2(mm) f3(mm) f4(mm) f5(mm)
数值 34.31 3.47 -7.03 -665.66 11.83
参数 f6(mm) f7(mm) f(mm) TTL(mm) ImgH(mm)
数值 -14.37 -120.86 3.89 5.23 3.50
表12
图8A示出了实施例4的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图8B示出了实施例4的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图8C示出了实施例4的光学成像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图8D示出了实施例4的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图8A至图8D可知，实施例4所给出的光学成像镜头能够实现良好的成像品质。
实施例5
以下参照图9至图10D描述了根据本申请实施例5的光学成像镜头。图9示出了根据本申请实施例5的光学成像镜头的结构示意图。
如图9所示，光学成像镜头沿着光轴从物侧至成像侧依序包括第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7和成像面S17。光学成像镜头还可包括设置于成像面S17的感光元件。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，并且第一透镜E1的物侧面S1和像侧面S2均为非球面。
第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，并且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，并且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面，并且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜E5具有正光焦度，其物侧面S9为凸面，像侧面S10为凸面，并且第五透镜E5的物侧面S9和像侧面S10均为非球面。
第六透镜E6具有负光焦度，其物侧面S11为凹面，像侧面S12 为凹面，并且第六透镜E6的物侧面S11和像侧面S12均为非球面。
第七透镜E7具有负光焦度，其物侧面S13为凸面，像侧面S14为凹面，并且第七透镜E7的物侧面S13和像侧面S14均为非球面。
可选地，光学成像镜头还可包括具有物侧面S15和像侧面S16的滤光片E8。来自物体的光依序穿过各表面S1至S16并最终成像在成像面S17上。
可选地，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提升光学成像镜头的成像质量。
表13示出了实施例5的光学成像镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表14示出了可用于实施例5中各非球面镜面的高次项系数。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表15示出了实施例5的光学成像镜头中各透镜的有效焦距f1至f7、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH。
Figure PCTCN2018074544-appb-000007
Figure PCTCN2018074544-appb-000008
表13
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.7533E-01 -2.6513E-01 3.1400E-01 -2.9342E-01 1.6546E-01 -5.1477E-02 8.0540E-03 -4.5423E-04 -8.6685E-06
S2 2.0231E-02 -1.5049E-01 1.8310E-01 -2.2081E-01 2.2421E-01 -1.3529E-01 4.5161E-02 -7.7990E-03 5.4566E-04
S3 4.6545E-03 -9.7712E-02 9.8820E-02 -1.3297E-01 2.2106E-01 -1.6955E-01 5.3391E-02 -3.7784E-03 -7.4273E-04
S4 -1.2072E-02 -4.3975E-02 -1.3234E-02 1.2963E-01 -1.6283E-01 9.6821E-02 -3.0718E-02 5.0252E-03 -3.3431E-04
S5 -3.4881E-02 -1.1755E-02 -5.1663E-02 1.2807E-01 -1.0727E-01 -7.9285E-03 7.0207E-02 -3.9701E-02 6.9202E-03
S6 6.8683E-02 -4.5974E-02 -6.1387E-02 2.7656E-01 -4.8941E-01 5.0630E-01 -3.0710E-01 1.0229E-01 -1.4349E-02
S7 -7.3723E-02 1.3588E-01 -2.9556E-01 4.5257E-01 -4.5756E-01 2.9849E-01 -1.1903E-01 2.6057E-02 -2.3835E-03
S8 -1.3343E-01 1.8031E-01 -3.4407E-01 4.4929E-01 -3.8326E-01 2.1213E-01 -7.1984E-02 1.3469E-02 -1.0590E-03
S9 1.8533E-02 7.2052E-05 -7.4312E-02 1.0486E-01 -9.1536E-02 5.1860E-02 -1.8127E-02 3.5212E-03 -2.8774E-04
S10 1.4515E-01 -2.2412E-01 1.9858E-01 -1.3582E-01 6.2641E-02 -1.8374E-02 3.2481E-03 -3.1259E-04 1.2497E-05
S11 3.2671E-01 -4.4295E-01 3.3447E-01 -1.9172E-01 7.5910E-02 -1.9039E-02 2.8616E-03 -2.3487E-04 8.0999E-06
S12 2.5732E-01 -2.7228E-01 1.4251E-01 -5.0119E-02 1.2698E-02 -2.3378E-03 2.9904E-04 -2.3462E-05 8.3780E-07
S13 -1.7244E-01 5.5352E-02 -1.1221E-02 7.3287E-04 3.3411E-05 -7.5735E-06 4.5155E-07 -1.2252E-08 1.2975E-10
S14 -7.9425E-02 3.4968E-02 -1.1476E-02 2.6320E-03 -3.9302E-04 3.5898E-05 -1.9173E-06 5.4835E-08 -6.4733E-10
表14
参数 f1(mm) f2(mm) f3(mm) f4(mm) f5(mm)
数值 12.97 4.23 -6.19 125.01 4.97
参数 f6(mm) f7(mm) f(mm) TTL(mm) ImgH(mm)
数值 -23.89 -4.84 3.77 5.11 3.24
表15
图10A示出了实施例5的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图10B示出了实施例5的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图10C示出了实施例5的光学成像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图10D示出了实施例5的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图10A至图10D可知，实施例5所给出的光学成像镜头能够实现良好的成像品质。
实施例6
以下参照图11至图12D描述了根据本申请实施例6的光学成像镜头。图11示出了根据本申请实施例6的光学成像镜头的结构示意图。
如图11所示，光学成像镜头沿着光轴从物侧至成像侧依序包括第 一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7和成像面S17。光学成像镜头还可包括设置于成像面S17的感光元件。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，并且第一透镜E1的物侧面S1和像侧面S2均为非球面。
第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，并且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，并且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面，并且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜E5具有正光焦度，其物侧面S9为凸面，像侧面S10为凸面，并且第五透镜E5的物侧面S9和像侧面S10均为非球面。
第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹面，并且第六透镜E6的物侧面S11和像侧面S12均为非球面。
第七透镜E7具有负光焦度，其物侧面S13为凸面，像侧面S14为凹面，并且第七透镜E7的物侧面S13和像侧面S14均为非球面。
可选地，光学成像镜头还可包括具有物侧面S15和像侧面S16的滤光片E8。来自物体的光依序穿过各表面S1至S16并最终成像在成像面S17上。
可选地，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提升光学成像镜头的成像质量。
表16示出了实施例6的光学成像镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表17示出了可用于实施例6中各非球面镜面的高次项系数。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表18示出了实施例6的光学成像镜头中各透镜的有效焦距f1至f7、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH。
Figure PCTCN2018074544-appb-000009
表16
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.9993E-01 -3.5970E-01 6.3875E-01 -1.1173E+00 1.5557E+00 -1.5670E+00 1.0278E+00 -3.8378E-01 6.1344E-02
S2 3.0611E-03 -1.3098E-01 1.4136E-01 -1.5461E-01 2.1269E-01 -2.1545E-01 1.4684E-01 -5.9606E-02 1.0380E-02
S3 -7.2882E-03 -9.7942E-02 2.0214E-02 1.9029E-01 -3.6293E-01 4.7797E-01 -3.9855E-01 1.7523E-01 -3.1126E-02
S4 -8.5963E-03 -1.2802E-01 1.7279E-01 -7.9144E-02 -2.9720E-02 6.2454E-02 -4.9273E-02 2.4426E-02 -5.4507E-03
S5 1.5950E-04 -1.5849E-01 2.4554E-01 -2.3837E-01 2.0766E-01 -2.2236E-01 1.9261E-01 -8.7381E-02 1.5198E-02
S6 9.4168E-02 -1.3971E-01 1.5609E-01 -6.9295E-02 -1.0420E-01 2.1940E-01 -1.7424E-01 6.9183E-02 -1.1236E-02
S7 -5.1204E-02 7.6569E-02 -1.7396E-01 3.0900E-01 -3.6252E-01 2.7220E-01 -1.2697E-01 3.3765E-02 -3.9280E-03
S8 -8.5519E-02 8.7705E-03 1.6182E-02 -4.0450E-02 6.6374E-02 -6.4766E-02 3.6578E-02 -1.0978E-02 1.3676E-03
S9 3.1327E-02 -9.4393E-02 4.4070E-02 2.3990E-02 -6.9875E-02 5.8303E-02 -2.5278E-02 5.7492E-03 -5.3514E-04
S10 1.4141E-01 -2.1812E-01 1.7250E-01 -9.0983E-02 2.2676E-02 1.9014E-03 -2.6705E-03 6.2727E-04 -5.1081E-05
S11 1.7362E-01 -2.5720E-01 2.0271E-01 -1.3211E-01 6.0964E-02 -1.7614E-02 3.0213E-03 -2.8571E-04 1.1755E-05
S12 1.1254E-01 -1.0595E-01 3.5253E-02 -5.3033E-03 3.5232E-04 -5.7648E-05 1.9369E-05 -2.5774E-06 1.1741E-07
S13 -1.7409E-01 5.2651E-02 3.8380E-03 -7.9804E-03 2.8088E-03 -5.1365E-04 5.3426E-05 -2.9970E-06 7.0571E-08
S14 -1.2148E-01 5.1575E-02 -1.2156E-02 -2.7660E-04 1.2555E-03 -4.0285E-04 6.0327E-05 -4.4455E-06 1.2950E-07
表17
参数 f1(mm) f2(mm) f3(mm) f4(mm) f5(mm)
数值 11.30 4.38 -6.22 158.81 6.44
参数 f6(mm) f7(mm) f(mm) TTL(mm) ImgH(mm)
数值 -14.86 -12.09 3.58 4.92 2.84
表18
图12A示出了实施例6的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图12B示出了实施例6的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图12C示出了实施例6的光学成像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图12D示出了实施例6的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图12A至图12D可知，实施例6所给出的光学成像镜头能够实现良好的成像品质。
实施例7
以下参照图13至图14D描述了根据本申请实施例7的光学成像镜头。图13示出了根据本申请实施例7的光学成像镜头的结构示意图。
如图13所示，光学成像镜头沿着光轴从物侧至成像侧依序包括第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7和成像面S17。光学成像镜头还可包括设置于成像面S17的感光元件。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，并且第一透镜E1的物侧面S1和像侧面S2均为非球面。
第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，并且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，并且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面，并且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜E5具有正光焦度，其物侧面S9为凸面，像侧面S10为凹面，并且第五透镜E5的物侧面S9和像侧面S10均为非球面。
第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹面，并且第六透镜E6的物侧面S11和像侧面S12均为非球面。
第七透镜E7具有正光焦度，其物侧面S13为凸面，像侧面S14 为凹面，并且第七透镜E7的物侧面S13和像侧面S14均为非球面。
可选地，光学成像镜头还可包括具有物侧面S15和像侧面S16的滤光片E8。来自物体的光依序穿过各表面S1至S16并最终成像在成像面S17上。
可选地，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提升光学成像镜头的成像质量。
表19示出了实施例7的光学成像镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表20示出了可用于实施例7中各非球面镜面的高次项系数。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表21示出了实施例7的光学成像镜头中各透镜的有效焦距f1至f7、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH。
Figure PCTCN2018074544-appb-000010
表19
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.8632E-01 -2.9331E-01 3.5974E-01 -3.7705E-01 2.5799E-01 -1.0672E-01 2.5924E-02 -3.4155E-03 1.8884E-04
S2 7.7461E-02 -2.5711E-01 2.1707E-01 -1.8666E-01 2.0177E-01 -1.3537E-01 4.8280E-02 -8.6585E-03 6.1861E-04
S3 -6.9115E-04 1.0838E-01 -6.0120E-01 8.9231E-01 -6.0126E-01 2.0728E-01 -3.7240E-02 3.7386E-03 -2.6584E-04
S4 -4.0539E-02 4.1006E-02 -2.5235E-01 4.9095E-01 -4.7214E-01 2.5221E-01 -7.5903E-02 1.2046E-02 -7.8492E-04
S5 -6.0029E-02 2.4474E-01 -8.5382E-01 1.5508E+00 -1.6673E+00 1.0639E+00 -3.7930E-01 6.5726E-02 -3.7132E-03
S6 8.3281E-02 -1.7535E-01 6.1009E-01 -1.4548E+00 2.0782E+00 -1.8079E+00 9.3857E-01 -2.6425E-01 3.0831E-02
S7 -7.8682E-02 1.5610E-01 -3.8162E-01 6.4906E-01 -6.7369E-01 4.2080E-01 -1.5437E-01 3.0577E-02 -2.5201E-03
S8 -1.2304E-01 1.5962E-01 -4.1644E-01 6.4630E-01 -5.8930E-01 3.2611E-01 -1.0682E-01 1.9026E-02 -1.4210E-03
S9 8.0908E-03 1.4675E-01 -4.2248E-01 5.3021E-01 -4.2066E-01 2.1400E-01 -6.7231E-02 1.1840E-02 -8.8983E-04
S10 6.1535E-02 -8.5396E-02 7.2669E-02 -6.6558E-02 3.6571E-02 -1.1123E-02 1.8816E-03 -1.6667E-04 6.0429E-06
S11 2.0537E-01 -4.0422E-01 3.4685E-01 -1.9550E-01 6.7731E-02 -1.3097E-02 1.1892E-03 -1.7488E-05 -2.7071E-06
S12 1.4149E-01 -2.2673E-01 1.5033E-01 -6.3409E-02 1.7538E-02 -3.0786E-03 3.2642E-04 -1.8961E-05 4.6163E-07
S13 -2.1943E-01 1.0847E-01 -3.7247E-02 1.0243E-02 -2.0475E-03 2.7125E-04 -2.2240E-05 1.0170E-06 -1.9776E-08
S14 -1.4665E-01 7.8921E-02 -2.9419E-02 7.3430E-03 -1.2115E-03 1.2861E-04 -8.3860E-06 3.0404E-07 -4.6707E-09
表20
参数 f1(mm) f2(mm) f3(mm) f4(mm) f5(mm)
数值 34.31 3.47 -7.03 470.80 11.83
参数 f6(mm) f7(mm) f(mm) TTL(mm) ImgH(mm)
数值 -14.37 303.13 3.78 5.23 3.50
表21
图14A示出了实施例7的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图14B示出了实施例7的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图14C示出了实施例7的光学成像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图14D示出了实施例7的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图14A至图14D可知，实施例7所给出的光学成像镜头能够实现良好的成像品质。
实施例8
以下参照图15至图16D描述了根据本申请实施例8的光学成像镜头。图15示出了根据本申请实施例8的光学成像镜头的结构示意图。
如图15所示，光学成像镜头沿着光轴从物侧至成像侧依序包括第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、 第六透镜E6、第七透镜E7和成像面S17。光学成像镜头还可包括设置于成像面S17的感光元件。
第一透镜E1具有负光焦度，其物侧面S1为凸面，像侧面S2为凹面，并且第一透镜E1的物侧面S1和像侧面S2均为非球面。
第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，并且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，并且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜E4具有负光焦度，其物侧面S7为凸面，像侧面S8为凹面，并且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜E5具有正光焦度，其物侧面S9为凹面，像侧面S10为凸面，并且第五透镜E5的物侧面S9和像侧面S10均为非球面。
第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凹面，并且第六透镜E6的物侧面S11和像侧面S12均为非球面。
第七透镜E7具有负光焦度，其物侧面S13为凸面，像侧面S14为凹面，并且第七透镜E7的物侧面S13和像侧面S14均为非球面。
可选地，光学成像镜头还可包括具有物侧面S15和像侧面S16的滤光片E8。来自物体的光依序穿过各表面S1至S16并最终成像在成像面S17上。
可选地，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提升光学成像镜头的成像质量。
表22示出了实施例8的光学成像镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表23示出了可用于实施例8中各非球面镜面的高次项系数。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表24示出了实施例8的光学成像镜头中各透镜的有效焦距f1至f7、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH。
Figure PCTCN2018074544-appb-000011
表22
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 4.5013E-02 -6.3688E-02 2.5611E-02 -4.1146E-03 -1.4721E-04 1.4748E-04 -2.0968E-05 1.2757E-06 -2.9347E-08
S2 3.1166E-02 -1.3499E-01 1.0770E-01 -2.9000E-02 6.3323E-05 1.4169E-03 -2.6845E-04 1.8649E-05 -3.7109E-07
S3 5.4105E-02 -5.7798E-02 7.8886E-03 5.7855E-02 -5.2007E-02 1.9624E-02 -3.7941E-03 3.7069E-04 -1.4544E-05
S4 5.6369E-02 -1.5348E-01 1.4054E-01 -8.3005E-02 3.4520E-02 -9.5868E-03 1.6446E-03 -1.5580E-04 6.2024E-06
S5 2.2412E-02 -9.7214E-02 8.1816E-02 -3.3340E-02 7.8482E-03 -1.1198E-03 9.5517E-05 -4.4805E-06 8.8898E-08
S6 2.5401E-02 1.3080E-02 -5.2988E-02 2.0202E-01 -3.9013E-01 4.2961E-01 -2.6739E-01 8.7764E-02 -1.1742E-02
S7 -3.1683E-02 -3.8679E-02 3.4634E-02 -4.0066E-02 2.8480E-02 -1.0037E-02 1.8306E-03 -1.6676E-04 5.9909E-06
S8 -9.8096E-02 1.3515E-01 -2.7581E-01 3.0493E-01 -2.3238E-01 1.2770E-01 -4.7779E-02 1.0452E-02 -9.7345E-04
S9 -2.6091E-01 5.4905E-01 -7.3398E-01 5.7201E-01 -2.5985E-01 6.8810E-02 -1.0418E-02 8.3130E-04 -2.6884E-05
S10 -2.6742E-01 4.4775E-01 -5.0673E-01 3.6376E-01 -1.5474E-01 3.9129E-02 -5.7895E-03 4.6334E-04 -1.5496E-05
S11 3.1156E-01 -4.5962E-01 3.6559E-01 -2.5291E-01 1.4794E-01 -6.1661E-02 1.5659E-02 -2.1150E-03 1.1577E-04
S12 3.8895E-01 -5.1887E-01 3.3869E-01 -1.3662E-01 3.4880E-02 -5.5882E-03 5.4227E-04 -2.9064E-05 6.5952E-07
S13 -2.3808E-01 5.3927E-02 7.5094E-03 -5.3115E-03 1.0490E-03 -1.0869E-04 6.3444E-06 -1.9704E-07 2.5330E-09
S14 -1.6234E-01 6.4894E-02 -1.7276E-02 2.9212E-03 -3.0158E-04 1.8922E-05 -7.0272E-07 1.4169E-08 -1.1931E-10
表23
参数 f1(mm) f2(mm) f3(mm) f4(mm) f5(mm)
数值 -82.18 3.20 -6.72 -3313.30 7.06
参数 f6(mm) f7(mm) f(mm) TTL(mm) ImgH(mm)
数值 16.02 -5.49 3.75 5.00 3.50
表24
图16A示出了实施例8的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图16B示出了实施例8的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图16C示出了实施例8的光学成像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图16D示出了实施例8的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图16A至图16D可知，实施例8所给出的光学成像镜头能够实现良好的成像品质。
实施例9
以下参照图17至图18D描述了根据本申请实施例9的光学成像镜头。图17示出了根据本申请实施例9的光学成像镜头的结构示意图。
如图17所示，光学成像镜头沿着光轴从物侧至成像侧依序包括第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7和成像面S17。光学成像镜头还可包括设置于成像面S17的感光元件。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，并且第一透镜E1的物侧面S1和像侧面S2均为非球面。
第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，并且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，并且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面，并且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜E5具有正光焦度，其物侧面S9为凹面，像侧面S10为凸面，并且第五透镜E5的物侧面S9和像侧面S10均为非球面。
第六透镜E6具有负光焦度，其物侧面S11为凸面，像侧面S12为凹面，并且第六透镜E6的物侧面S11和像侧面S12均为非球面。
第七透镜E7具有负光焦度，其物侧面S13为凸面，像侧面S14为凹面，并且第七透镜E7的物侧面S13和像侧面S14均为非球面。
可选地，光学成像镜头还可包括具有物侧面S15和像侧面S16的滤光片E8。来自物体的光依序穿过各表面S1至S16并最终成像在成像面S17上。
可选地，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提升光学成像镜头的成像质量。
表25示出了实施例9的光学成像镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表26示出了可用于实施例9中各非球面镜面的高次项系数。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表27示出了实施例9的光学成像镜头中各透镜的有效焦距f1至f7、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH。
Figure PCTCN2018074544-appb-000012
表25
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 8.4469E-02 -1.0041E-01 4.7595E-02 -1.1874E-02 1.6830E-03 -1.3802E-04 6.3043E-06 -1.4050E-07 1.0079E-09
S2 3.9959E-02 -1.1500E-01 2.4701E-02 7.8002E-02 -6.7788E-02 2.4694E-02 -4.6696E-03 4.5026E-04 -1.7525E-05
S3 3.0330E-02 -9.7040E-03 -8.9713E-02 1.7228E-01 -1.2470E-01 4.5437E-02 -8.9282E-03 9.0558E-04 -3.7279E-05
S4 8.6057E-02 -1.9225E-01 1.5850E-01 -7.5910E-02 2.4100E-02 -5.2269E-03 7.4620E-04 -6.2642E-05 2.3129E-06
S5 2.3913E-02 -1.2474E-01 1.0673E-01 -4.3169E-02 1.0024E-02 -1.4120E-03 1.1936E-04 -5.5736E-06 1.1055E-07
S6 2.3818E-02 2.7536E-02 -1.1709E-01 3.3065E-01 -5.3789E-01 5.3176E-01 -3.0867E-01 9.6879E-02 -1.2625E-02
S7 -4.6639E-02 -2.6625E-02 4.7862E-02 -5.8314E-02 3.2605E-02 -9.0239E-03 1.2872E-03 -8.8186E-05 2.1386E-06
S8 -4.6338E-02 -6.3351E-03 1.2735E-03 -3.1164E-02 5.3415E-02 -4.5121E-02 2.0236E-02 -4.5246E-03 3.9741E-04
S9 -3.1677E-02 4.2822E-02 -6.5431E-02 2.7783E-02 -5.6550E-03 6.3943E-04 -4.1282E-05 1.4285E-06 -2.0600E-08
S10 -4.6963E-02 6.5879E-02 -7.3263E-02 3.7923E-02 -1.0484E-02 1.6867E-03 -1.5926E-04 8.2079E-06 -1.7843E-07
S11 2.0378E-01 -3.8895E-01 4.1463E-01 -3.9107E-01 2.6438E-01 -1.1603E-01 3.0632E-02 -4.3498E-03 2.5338E-04
S12 1.9121E-01 -2.6153E-01 1.4831E-01 -5.2227E-02 1.1813E-02 -1.6700E-03 1.4110E-04 -6.4918E-06 1.2496E-07
S13 -3.9612E-01 1.9227E-01 -2.8603E-02 -5.4661E-03 2.8607E-03 -4.9061E-04 4.3207E-05 -1.9581E-06 3.6189E-08
S14 -2.5640E-01 1.6084E-01 -6.6860E-02 1.8667E-02 -3.3742E-03 3.7910E-04 -2.5209E-05 9.0250E-07 -1.3357E-08
表26
参数 f1(mm) f2(mm) f3(mm) f4(mm) f5(mm)
数值 71.02 3.45 -6.18 16.69 5.45
参数 f6(mm) f7(mm) f(mm) TTL(mm) ImgH(mm)
数值 -77.47 -4.51 3.82 5.00 3.50
表27
图18A示出了实施例9的光学成像镜头的轴上色差曲线，其表示不同波长的光线经由镜头后的会聚焦点偏离。图18B示出了实施例9的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图18C示出了实施例9的光学成像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图18D示出了实施例9的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图18A至图18D可知，实施例9所给出的光学成像镜头能够实现良好的成像品质。
实施例10
以下参照图19至图20D描述了根据本申请实施例10的光学成像镜头。图19示出了根据本申请实施例10的光学成像镜头的结构示意图。
如图19所示，光学成像镜头沿着光轴从物侧至成像侧依序包括第一透镜E1、第二透镜E2、第三透镜E3、第四透镜E4、第五透镜E5、第六透镜E6、第七透镜E7和成像面S17。光学成像镜头还可包括设 置于成像面S17的感光元件。
第一透镜E1具有正光焦度，其物侧面S1为凸面，像侧面S2为凹面，并且第一透镜E1的物侧面S1和像侧面S2均为非球面。
第二透镜E2具有正光焦度，其物侧面S3为凸面，像侧面S4为凸面，并且第二透镜E2的物侧面S3和像侧面S4均为非球面。
第三透镜E3具有负光焦度，其物侧面S5为凸面，像侧面S6为凹面，并且第三透镜E3的物侧面S5和像侧面S6均为非球面。
第四透镜E4具有正光焦度，其物侧面S7为凸面，像侧面S8为凹面，并且第四透镜E4的物侧面S7和像侧面S8均为非球面。
第五透镜E5具有正光焦度，其物侧面S9为凹面，像侧面S10为凸面，并且第五透镜E5的物侧面S9和像侧面S10均为非球面。
第六透镜E6具有正光焦度，其物侧面S11为凸面，像侧面S12为凹面，并且第六透镜E6的物侧面S11和像侧面S12均为非球面。
第七透镜E7具有负光焦度，其物侧面S13为凸面，像侧面S14为凹面，并且第七透镜E7的物侧面S13和像侧面S14均为非球面。
可选地，光学成像镜头还可包括具有物侧面S15和像侧面S16的滤光片E8。来自物体的光依序穿过各表面S1至S16并最终成像在成像面S17上。
可选地，可在物侧与第一透镜E1之间设置用于限制光束的光阑STO，以提升光学成像镜头的成像质量。
表28示出了实施例10的光学成像镜头的各透镜的表面类型、曲率半径、厚度、材料及圆锥系数，其中，曲率半径和厚度的单位均为毫米(mm)。表29示出了可用于实施例10中各非球面镜面的高次项系数。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。表30示出了实施例10的光学成像镜头中各透镜的有效焦距f1至f7、光学成像镜头的总有效焦距f、光学成像镜头的光学总长度TTL以及光学成像镜头成像面S17上感光元件的有效像素区域对角线长的一半ImgH。
Figure PCTCN2018074544-appb-000013
Figure PCTCN2018074544-appb-000014
表28
面号 A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 8.6935E-02 -9.8380E-02 4.5177E-02 -1.0807E-02 1.4817E-03 -1.2059E-04 5.7401E-06 -1.4688E-07 1.5501E-09
S2 1.7746E-02 -8.4082E-02 -6.3983E-03 1.0307E-01 -8.1964E-02 2.9594E-02 -5.6358E-03 5.4967E-04 -2.1654E-05
S3 1.8309E-02 5.5991E-03 -1.1457E-01 2.0171E-01 -1.4360E-01 5.2169E-02 -1.0271E-02 1.0463E-03 -4.3312E-05
S4 8.9517E-02 -1.7614E-01 1.2395E-01 -4.0940E-02 4.0392E-03 1.3777E-03 -4.8571E-04 5.8427E-05 -2.5608E-06
S5 3.3970E-02 -1.1597E-01 8.6787E-02 -3.1478E-02 6.6343E-03 -8.5712E-04 6.7138E-05 -2.9336E-06 5.4932E-08
S6 2.8942E-02 2.6144E-02 -1.1536E-01 3.2536E-01 -5.3698E-01 5.3570E-01 -3.1219E-01 9.8049E-02 -1.2757E-02
S7 -5.0756E-02 -2.4355E-02 4.8643E-02 -5.8499E-02 3.1444E-02 -8.2362E-03 1.0779E-03 -6.2671E-05 9.4821E-07
S8 -4.8010E-02 -1.8409E-02 3.2692E-02 -7.5843E-02 9.4094E-02 -6.9564E-02 2.9450E-02 -6.4553E-03 5.6657E-04
S9 1.6411E-02 -2.2462E-03 -1.9730E-02 8.0390E-03 -1.3967E-03 1.3081E-04 -6.9097E-06 1.9435E-07 -2.2686E-09
S10 -9.3351E-02 1.8324E-01 -2.1227E-01 1.4141E-01 -5.5732E-02 1.3336E-02 -1.8987E-03 1.4762E-04 -4.8161E-06
S11 1.0367E-01 -2.0302E-01 1.4738E-01 -1.0652E-01 5.8248E-02 -1.9915E-02 3.9445E-03 -4.1239E-04 1.7577E-05
S12 1.2542E-01 -1.9200E-01 1.0230E-01 -3.3192E-02 7.2886E-03 -1.0671E-03 9.7406E-05 -4.9406E-06 1.0566E-07
S13 -4.0421E-01 1.9956E-01 -3.3255E-02 -5.4559E-03 3.5807E-03 -7.2018E-04 7.4329E-05 -3.9450E-06 8.5153E-08
S14 -2.2689E-01 1.2233E-01 -4.0858E-02 8.8829E-03 -1.2644E-03 1.1201E-04 -5.8498E-06 1.6393E-07 -1.8961E-09
表29
参数 f1(mm) f2(mm) f3(mm) f4(mm) f5(mm)
数值 80.65 3.42 -6.27 17.88 7.59
参数 f6(mm) f7(mm) f(mm) TTL(mm) ImgH(mm)
数值 47.76 -4.61 3.88 5.00 3.65
表30
图20A示出了实施例10的光学成像镜头的轴上色差曲线，其表 示不同波长的光线经由镜头后的会聚焦点偏离。图20B示出了实施例10的光学成像镜头的象散曲线，其表示子午像面弯曲和弧矢像面弯曲。图20C示出了实施例10的光学成像镜头的畸变曲线，其表示不同视角情况下的畸变大小值。图20D示出了实施例10的光学成像镜头的倍率色差曲线，其表示光线经由镜头后在成像面上的不同的像高的偏差。根据图20A至图20D可知，实施例10所给出的光学成像镜头能够实现良好的成像品质。
综上，实施例1至实施例10分别满足以下表31所示的关系。
条件式\实施例 1 2 3 4 5 6 7 8 9 10
f2/|f1| 0.31 0.10 0.18 0.10 0.33 0.39 0.10 0.04 0.05 0.04
|(R9-R12)/(R9+R12)| 0.07 0.13 0.31 0.13 0.75 0.16 0.13 1.20 1.60 1.45
(CT4+CT5+CT6)/3 0.30 0.37 0.37 0.39 0.45 0.40 0.39 0.36 0.41 0.38
f/|f4| 0.02 0.01 0.02 0.01 0.03 0.02 0.01 0.001 0.23 0.22
|f/f5|+|f/f6| 0.44 0.59 0.57 0.60 0.92 0.80 0.58 0.76 0.75 0.59
ET4/CT4 0.81 0.71 0.69 0.71 0.67 0.67 0.71 0.47 0.51 0.48
R2/R3 0.92 0.92 0.89 0.92 0.94 0.94 0.92 0.88 0.91 0.95
R3/R4 -0.35 -0.14 -0.18 -0.14 -0.21 -0.21 -0.14 -0.13 -0.11 -0.10
R6/R5 0.22 0.33 0.32 0.33 0.30 0.30 0.33 0.25 0.28 0.29
f/f3 -0.82 -0.55 -0.56 -0.55 -0.61 -0.58 -0.54 -0.56 -0.62 -0.62
f/|f7| 0.47 0.03 0.03 0.03 0.78 0.30 0.01 0.68 0.85 0.84
R7/R8 1.08 0.99 1.10 1.04 0.80 0.92 0.99 1.02 0.32 0.32
TTL/ImgH 1.84 1.54 1.47 1.49 1.58 1.73 1.49 1.43 1.43 1.37
表31
本申请还提供一种成像装置，其电子感光元件可以是感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)。成像装置可以是诸如数码相机的独立摄像设备，也可以是集成在诸如手机等移动电子设备上的成像模块。该成像装置装配有以上描述的光学成像镜头。
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离所述发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (42)

  1. 光学成像镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜以及第七透镜，其特征在于，
    所述第一透镜、所述第四透镜和所述第五透镜均具有正光焦度或负光焦度；
    所述第二透镜具有正光焦度；
    所述第三透镜具有负光焦度；
    所述第六透镜和所述第七透镜中的至少一个具有负光焦度，
    其中，所述第一透镜的有效焦距f1与所述第二透镜的有效焦距f2满足f2/|f1|＜0.5。
  2. 根据权利要求1所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第三透镜的有效焦距f3满足-1.0＜f/f3≤-0.5。
  3. 根据权利要求1所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第四透镜的有效焦距f4满足f/|f4|≤0.5。
  4. 根据权利要求1所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f、所述第五透镜的有效焦距f5以及所述第六透镜的有效焦距f6满足0.4≤|f/f5|+|f/f6|≤1.0。
  5. 根据权利要求1所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第七透镜的有效焦距f7满足f/|f7|＜1.0。
  6. 根据权利要求1至5中任一项所述的光学成像镜头，其特征在 于，(CT4+CT5+CT6)/3≤0.5，
    其中，CT4为所述第四透镜于所述光轴上的中心厚度；
    CT5为所述第五透镜于所述光轴上的中心厚度；以及
    CT6为所述第六透镜于所述光轴上的中心厚度。
  7. 根据权利要求1至5中任一项所述的光学成像镜头，其特征在于，所述第四透镜在最大半径处的边缘厚度ET4与所述第四透镜于所述光轴上的中心厚度CT4满足0.4＜ET4/CT4＜1.0。
  8. 根据权利要求1至5中任一项所述的光学成像镜头，其特征在于，所述第一透镜的物侧面为凸面。
  9. 根据权利要求8所述的光学成像镜头，其特征在于，所述第四透镜的像侧面为凹面。
  10. 根据权利要求9所述的光学成像镜头，其特征在于，所述第六透镜的像侧面为凹面。
  11. 根据权利要求10所述的光学成像镜头，其特征在于，所述第一透镜的像侧面的曲率半径R2与所述第二透镜的物侧面的曲率半径R3满足0.8≤R2/R3≤1.0。
  12. 根据权利要求10所述的光学成像镜头，其特征在于，所述第二透镜的物侧面的曲率半径R3与所述第二透镜的像侧面的曲率半径R4满足-0.5≤R3/R4≤0。
  13. 根据权利要求10所述的光学成像镜头，其特征在于，所述第三透镜的像侧面的曲率半径R6与所述第三透镜的物侧面的曲率半径R5满足0＜R6/R5＜0.5。
  14. 根据权利要求10所述的光学成像镜头，其特征在于，所述第四透镜的物侧面的曲率半径R7与所述第四透镜的像侧面的曲率半径R8满足0＜R7/R8＜1.5。
  15. 根据权利要求10所述的光学成像镜头，其特征在于，所述第五透镜的物侧面的曲率半径R9与所述第六透镜的像侧面的曲率半径R12满足|(R9-R12)/(R9+R12)|≤2.0。
  16. 根据权利要求9至15中任一项所述的光学成像镜头，其特征在于，TTL/ImgH≤1.85，
    其中，TTL为所述第一透镜的物侧面至所述光学成像镜头的成像面在所述光轴上的距离，
    ImgH为所述光学成像镜头的成像面上的感光元件的有效像素区域对角线长的一半。
  17. 光学成像镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜以及至少一个后续透镜，其特征在于，
    所述第一透镜、所述第四透镜和所述第五透镜中的至少一个具有正光焦度；
    所述第二透镜具有正光焦度；
    所述第三透镜具有负光焦度；
    所述第六透镜具有正光焦度或负光焦度，
    其中，所述第四透镜于所述光轴上的中心厚度CT4、所述第五透镜于所述光轴上的中心厚度CT5以及所述第六透镜于所述光轴上的中心厚度CT6满足(CT4+CT5+CT6)/3≤0.5。
  18. 根据权利要求17所述的光学成像镜头，其特征在于，TTL/ImgH≤1.85，
    其中，TTL为所述第一透镜的物侧面至所述光学成像镜头的成像 面在所述光轴上的距离，
    ImgH为所述光学成像镜头的成像面上的感光元件的有效像素区域对角线长的一半。
  19. 根据权利要求17或18所述的光学成像镜头，其特征在于，所述第一透镜的有效焦距f1与所述第二透镜的有效焦距f2满足f2/|f1|＜0.5。
  20. 根据权利要求17或18所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第三透镜的有效焦距f3满足-1.0＜f/f3≤-0.5。
  21. 根据权利要求17或18所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第四透镜的有效焦距f4满足f/|f4|≤0.5。
  22. 根据权利要求17或18所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f、所述第五透镜的有效焦距f5以及所述第六透镜的有效焦距f6满足0.4≤|f/f5|+|f/f6|≤1.0。
  23. 根据权利要求19所述的光学成像镜头，其特征在于，所述第一透镜的像侧面的曲率半径R2与所述第二透镜的物侧面的曲率半径R3满足0.8≤R2/R3≤1.0。
  24. 根据权利要求19所述的光学成像镜头，其特征在于，所述第二透镜的物侧面的曲率半径R3与所述第二透镜的像侧面的曲率半径R4满足-0.5≤R3/R4≤0。
  25. 根据权利要求20所述的光学成像镜头，其特征在于，所述第三透镜的像侧面的曲率半径R6与所述第三透镜的物侧面的曲率半径 R5满足0＜R6/R5＜0.5。
  26. 根据权利要求21所述的光学成像镜头，其特征在于，所述第四透镜的像侧面为凹面；以及
    所述第四透镜的物侧面的曲率半径R7与所述第四透镜的像侧面的曲率半径R8满足0＜R7/R8＜1.5。
  27. 根据权利要求26所述的光学成像镜头，其特征在于，所述第四透镜在最大半径处的边缘厚度ET4与所述第四透镜于所述光轴上的中心厚度CT4满足0.4＜ET4/CT4＜1.0。
  28. 根据权利要求22所述的光学成像镜头，其特征在于，所述第六透镜的像侧面为凹面；以及
    所述第五透镜的物侧面的曲率半径R9与所述第六透镜的像侧面的曲率半径R12满足|(R9-R12)/(R9+R12)|≤2.0。
  29. 根据权利要求17或18所述的光学成像镜头，其特征在于，所述至少一个后续透镜包括具有正光焦度或负光焦度的第七透镜，其有效焦距f7与所述光学成像镜头的总有效焦距f满足f/|f7|＜1.0。
  30. 光学成像镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜以及第七透镜，其特征在于，
    所述第一透镜的物侧面为凸面；
    所述第二透镜的物侧面的曲率半径R3与所述第二透镜的像侧面的曲率半径R4满足-0.5≤R3/R4≤0；
    所述第三透镜的物侧面的曲率半径R5与所述第三透镜的像侧面的曲率半径R6满足0＜R6/R5＜0.5；
    所述第四透镜和所述第六透镜的像侧面均为凹面；
    所述第五透镜的物侧面和像侧面中的至少一个为凸面；以及
    所述第七透镜的物侧面和像侧面中的至少一个为凹面。
  31. 根据权利要求30所述的光学成像镜头，其特征在于，所述第四透镜的物侧面的曲率半径R7与所述第四透镜的像侧面的曲率半径R8满足0＜R7/R8＜1.5。
  32. 根据权利要求30所述的光学成像镜头，其特征在于，所述第五透镜的物侧面的曲率半径R9与所述第六透镜的像侧面的曲率半径R12满足|(R9-R12)/(R9+R12)|≤2.0。
  33. 根据权利要求30所述的光学成像镜头，其特征在于，所述第二透镜具有正光焦度；
    所述第一透镜的有效焦距f1与所述第二透镜的有效焦距f2满足f2/|f1|＜0.5。
  34. 根据权利要求30所述的光学成像镜头，其特征在于，所述第三透镜具有负光焦度；
    所述光学成像镜头的总有效焦距f与所述第三透镜的有效焦距f3满足-1.0＜f/f3≤-0.5。
  35. 根据权利要求30所述的光学成像镜头，其特征在于，所述第一透镜、所述第四透镜和所述第五透镜中的至少一个具有正光焦度。
  36. 根据权利要求35所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第四透镜的有效焦距f4满足f/|f4|≤0.5。
  37. 根据权利要求30所述的光学成像镜头，其特征在于，所述第六透镜和所述第七透镜中的至少一个具有负光焦度。
  38. 根据权利要求37所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f、所述第五透镜的有效焦距f5以及所述第六透镜的有效焦距f6满足0.4≤|f/f5|+|f/f6|≤1.0。
  39. 根据权利要求37所述的光学成像镜头，其特征在于，所述光学成像镜头的总有效焦距f与所述第七透镜的有效焦距f7满足f/|f7|＜1.0。
  40. 根据权利要求30、31或35中任一项所述的光学成像镜头，其特征在于，所述第四透镜在最大半径处的边缘厚度ET4与所述第四透镜于所述光轴上的中心厚度CT4满足0.4＜ET4/CT4＜1.0。
  41. 根据权利要求30、35或37中任一项所述的光学成像镜头，其特征在于，TTL/ImgH≤1.85，
    其中，TTL为所述第一透镜的物侧面至所述光学成像镜头的成像面在所述光轴上的距离，
    ImgH为所述光学成像镜头的成像面上的感光元件的有效像素区域对角线长的一半。
  42. 根据权利要求30、35或37中任一项所述的光学成像镜头，其特征在于，(CT4+CT5+CT6)/3≤0.5，
    其中，CT4为所述第四透镜于所述光轴上的中心厚度；
    CT5为所述第五透镜于所述光轴上的中心厚度；以及
    CT6为所述第六透镜于所述光轴上的中心厚度。
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