CN108363186A - Camera optical camera lens - Google Patents
Camera optical camera lens Download PDFInfo
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- CN108363186A CN108363186A CN201810388550.3A CN201810388550A CN108363186A CN 108363186 A CN108363186 A CN 108363186A CN 201810388550 A CN201810388550 A CN 201810388550A CN 108363186 A CN108363186 A CN 108363186A
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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- General Physics & Mathematics (AREA)
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Abstract
The present invention relates to field of optical lens, disclose a kind of camera optical camera lens, which includes sequentially from object side to image side：First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens；And meet following relationship：1.51≤f1/f≤2.5,1.7≤n2≤2.2,‑2≤f3/f4≤0；‑10≤(R13+R14)/(R13‑R14)≤0；1.7≤n6≤2.2.While the camera optical camera lens can obtain high imaging performance, low TTL is obtained.
Description
Technical field
The present invention relates to field of optical lens, more particularly to a kind of to be suitable for the hand-held terminals such as smart mobile phone, digital camera
The camera optical camera lens of the photographic devices such as equipment and monitor, PC camera lenses.
Background technology
In recent years, with the rise of smart mobile phone, the demand for minimizing phtographic lens increasingly improves, and general phtographic lens
Sensor devices nothing more than being that photosensitive coupled apparatus (Charge Coupled Device, CCD) or Complimentary Metal-Oxide are partly led
Two kinds of body device (Complementary Metal-OxideSemicondctor Sensor, CMOS Sensor), and due to half
Conductor manufacturing process technology progresses greatly so that the Pixel Dimensions of sensor devices reduce, along with electronic product is good with function now
And light and short external form is development trend, therefore, the miniaturization pick-up lens for having good image quality becomes at present
Mainstream in the market.To obtain preferable image quality, the camera lens that tradition is equipped on mobile phone camera mostly uses three-chip type or four
Formula lens arrangement.Also, with the development of technology and users on diversity increases, sensor devices elemental area not
It is disconnected to reduce, and in the case that requirement of the system to image quality is continuously improved, five chips, six chips, seven chip lens arrangements by
Gradually appear in lens design.The wide-angle that there is outstanding optical signature, ultra-thin and chromatic aberation fully to make corrections for active demand is taken the photograph
As camera lens.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of camera optical camera lens, high imaging performance can obtained
While, meet the requirement of ultrathin and wide angle.
In order to solve the above technical problems, embodiments of the present invention provide a kind of camera optical camera lens, which is characterized in that
The camera optical camera lens includes sequentially from object side to image side：First lens, the second lens, the third lens, the 4th lens, the
Five lens, the 6th lens and the 7th lens；
The focal length of the camera optical camera lens is f, and the focal length of first lens is f1, and the focal length of the third lens is
The focal length of f3, the 4th lens are f4, and the refractive index of second lens is n2, and the refractive index of the 6th lens is n6,
The radius of curvature of 7th lens object side is R13, and the radius of curvature of the 7th lens image side surface is R14, is met following
Relational expression：
1.51≤f1/f≤2.5；
1.7≤n2≤2.2；
-2≤f3/f4≤0；
-10≤(R13+R14)/(R13-R14)≤0；
1.7≤n6≤2.2。
Preferably, the camera optical camera lens meets following relationship：
1.725≤f1/f≤2.306；
1.717≤n2≤2.011；
-1.394≤f3/f4≤-0.373；
-5.01≤(R13+R14)/(R13-R14)≤0；
1.715≤n6≤2.011。
Preferably, first lens have a positive refracting power, object side in it is paraxial be convex surface, image side surface is in paraxial
Concave surface；The radius of curvature of the first lens object side is R1, and the radius of curvature of the first lens image side surface is R2, Yi Jisuo
It is d1 to state thickness on the axis of the first lens, and meets following relationship：-8.72≤(R1+R2)/(R1-R2)≤-2.7；0.05≤
d1/TTL≤0.15。
Preferably, the camera optical camera lens meets following relationship：-5.45≤(R1+R2)/(R1-R2)≤-3.37；
0.08≤d1/TTL≤0.12。
Preferably, second lens have a positive refracting power, object side in it is paraxial be convex surface, image side surface is in paraxial
Concave surface；The focal length of the camera optical camera lens is f, and the focal length of second lens is f2, the song of the second lens object side
Rate radius is R3, and the radius of curvature of the second lens image side surface is R4, and thickness is d3 on the axis of second lens, and is met
Following relationship：2.84≤f2/f≤13.72；-132.06≤(R3+R4)/(R3-R4)≤301.73；0.02≤d3/TTL≤
0.06。
Preferably, the camera optical camera lens meets following relationship：4.54≤f2/f≤10.98；-82.53≤(R3+
R4)/(R3-R4)≤241.38；0.03≤d3/TTL≤0.05.
Preferably, the third lens have a positive refracting power, object side in it is paraxial be convex surface, image side surface is in paraxial
Convex surface；The focal length of the camera optical camera lens is f, and the focal length of the third lens is f3, the song of the third lens object side
Rate radius is R5, and the radius of curvature of the third lens image side surface is R6, and thickness is d5 on the axis of the third lens, and is met
Following relationship：0.37≤f3/f≤1.37；0.21≤(R5+R6)/(R5-R6)≤0.92；0.07≤d5/TTL≤0.22.
Preferably, the camera optical camera lens meets following relationship：0.59≤f3/f≤1.10；0.34≤(R5+R6)/
(R5-R6)≤0.74；0.11≤d5/TTL≤0.18.
Preferably, the 4th lens have a negative refracting power, object side in it is paraxial be concave surface, image side surface is in paraxial
Concave surface；The focal length of the camera optical camera lens is f, and the focal length of the 4th lens is f4, the song of the 4th lens object side
Rate radius is R7, and the radius of curvature of the 4th lens image side surface is R8, and thickness is d7 on the axis of the 4th lens, and is met
Following relationship：-2.45≤f4/f≤-0.63；-1.50≤(R7+R8)/(R7-R8)≤-0.30；0.02≤d7/TTL≤
0.08。
Preferably, the camera optical camera lens meets following relationship：-1.53≤f4/f≤-0.78；-0.94≤(R7+
R8)/(R7-R8)≤-0.37；0.04≤d7/TTL≤0.06.
Preferably, the 5th lens have a negative refracting power, object side in it is paraxial be concave surface, image side surface is in paraxial
Concave surface；The focal length of the camera optical camera lens is f, and the focal length of the 5th lens is f5, the song of the 5th lens object side
Rate radius is R9, and the radius of curvature of the 5th lens image side surface is R10, and thickness is d9 on the axis of the 5th lens, and full
Sufficient following relationship：-2.95≤f5/f≤-0.46；-1.44≤(R9+R10)/(R9-R10)≤0.27；0.03≤d9/TTL≤
0.13。
Preferably, the camera optical camera lens meets following relationship：-1.84≤f5/f≤-0.57；-0.90≤(R9+
R10)/(R9-R10)≤0.21；0.05≤d9/TTL≤0.11.
Preferably, the 6th lens have a positive refracting power, object side in it is paraxial be convex surface, image side surface is in paraxial
Convex surface；The focal length of the camera optical camera lens is f, and the focal length of the 6th lens is f6, the song of the 6th lens object side
Rate radius is R11, and the radius of curvature of the 6th lens image side surface is R12, and thickness is d11 on the axis of the 6th lens, and
Meet following relationship：0.21≤f6/f≤0.82；-0.90≤(R11+R12)/(R11-R12)≤-0.07；0.06≤d11/
TTL≤0.20。
Preferably, the camera optical camera lens meets following relationship：0.34≤f6/f≤0.66；-0.56≤(R11+
R12)/(R11-R12)≤-0.09；0.10≤d11/TTL≤0.16.
Preferably, the 7th lens have a negative refracting power, object side in it is paraxial be concave surface, image side surface is in paraxial
Concave surface；The focal length of the camera optical camera lens is f, and the focal length of the 7th lens is f7, the song of the 7th lens object side
Rate radius is R13, and the radius of curvature of the 7th lens image side surface is R14, and thickness is d13 on the axis of the 7th lens, and
Meet following relationship：-1.30≤f7/f≤-0.38；-0.04≤(R13+R14)/(R13-R14)≤0；0.03≤d13/TTL
≤0.08。
Preferably, the camera optical camera lens meets following relationship：-0.81≤f7/f≤-0.48；-0.02≤(R13+
R14)/(R13-R14)≤0；0.04≤d13/TTL≤0.07.
Preferably, the optics overall length TTL of the camera optical camera lens is less than or equal to 5.06 millimeters.
Preferably, the optics overall length TTL of the camera optical camera lens is less than or equal to 4.83 millimeters.
Preferably, the aperture F numbers of the camera optical camera lens are less than or equal to 1.85.
Preferably, the aperture F numbers of the camera optical camera lens are less than or equal to 1.82.
The beneficial effects of the present invention are:Camera optical camera lens according to the present invention has outstanding optical characteristics, ultra-thin,
Wide-angle and chromatic aberation fully makes corrections, is particularly suitable for the cell-phone camera mirror being made of photographing elements such as CCD, CMOS of high pixel
Head assembly and WEB pick-up lens.
Description of the drawings
Fig. 1 is the structural schematic diagram of the camera optical camera lens of first embodiment of the invention；
Fig. 2 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 3 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 4 is the curvature of field and distortion schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 5 is the structural schematic diagram of the camera optical camera lens of second embodiment of the invention；
Fig. 6 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 5；
Fig. 7 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 5；
Fig. 8 is the curvature of field and distortion schematic diagram of camera optical camera lens shown in Fig. 5；
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the present invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present invention,
Many technical details are proposed in order to make reader more fully understand the present invention.But even if without these technical details and base
In the various changes and modifications of following embodiment, claimed technical solution of the invention can also be realized.
(first embodiment)
Refer to the attached drawing, the present invention provides a kind of camera optical camera lenses 10.Fig. 1 show first embodiment of the invention
Camera optical camera lens 10, the camera optical camera lens 10 include seven lens.Specifically, the camera optical camera lens 10, by object side
Include sequentially to image side：Aperture S1, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5,
6th lens L6 and the 7th lens L7.It may be provided with optical filtering piece (filter) GF etc. between 7th lens L7 and image planes Si
Optical element.
First lens L1 is plastic material, and the second lens L2 is glass material, and the third lens L3 is plastic material, and the 4th thoroughly
Mirror L4 is plastic material, and the 5th lens L5 is plastic material, and the 6th lens L6 is glass material, and the 7th lens L7 is plastics material
Matter.
The focal length of the whole camera optical camera lens of definition 10 is f, and the focal length of the first lens L1 is f1,1.51≤f1/f≤
2.5, it is specified that the positive refracting power of the first lens L1.When more than lower limit specified value, develop to ultrathin although being conducive to camera lens,
The positive refracting power for being the first lens L1 can be too strong, it is difficult to make corrections aberration the problems such as, while be unfavorable for camera lens to wide angle develop.Phase
When instead, more than upper limit specified value, the positive refracting power of the first lens can become weak, and camera lens is difficult to develop to ultrathin.Preferably, full
Foot 1.725≤f1/f≤2.306.
The refractive index for defining the second lens L2 is n2,1.7≤n2≤2.2, it is specified that the refractive index of the second lens L2,
It is more advantageous within this range to ultrathin and is developed, while conducive to amendment aberration.Preferably, meet 1.717≤n2≤2.011.
The focal length for defining the third lens L3 is f3, and the focal length of the 4th lens L4 is f4, -2≤f3/f4≤0, rule
The ratio for having determined the focal length f4 of the focal length f3 and the 4th lens L4 of the third lens L3, can effectively reduce optical imaging lens group
Susceptibility further promotes image quality.Preferably, meet -1.394≤f3/f4≤- 0.373.
The radius of curvature for defining the 7th lens L7 objects side is R13, the curvature half of the 7th lens L7 image side surfaces
Diameter is R14, and -10≤(R13+R14)/(R13-R14)≤0 is, it is specified that the shape of the 7th lens L7, when outside range, with to
Ultra-thin wide angle development, it is difficult to the problems such as drawing the aberration at angle outside the axis that makes corrections.Preferably, meet -5.01≤(R13+R14)/(R13-
R14)≤0。
The refractive index for defining the 6th lens L6 is n6,1.7≤n6≤2.2, it is specified that the refractive index of the 6th lens L6,
It is more advantageous within this range to ultrathin and is developed, while conducive to amendment aberration.Preferably, meet 1.715≤n6≤2.011.
When the focal length of camera optical camera lens 10 of the present invention, the focal length of each lens, the refractive index of associated lens, shooting light
It learns the optics overall length of camera lens, when thickness and radius of curvature meet above-mentioned relation formula on axis, videography optical lens head 10 can be made to have
High-performance, and meet the design requirement of low TTL.
In present embodiment, the object side of the first lens L1 is convex surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is positive refracting power.
The radius of curvature R 1 of first lens L1 objects side, the radius of curvature R 2 of the first lens L1 image side surfaces meet following pass
It is formula：- 8.72≤(R1+R2)/(R1-R2)≤- 2.7 rationally controls the shape of the first lens so that the first lens can be effective
Ground corrects system spherical aberration；Preferably, -5.45≤(R1+R2)/(R1-R2)≤- 3.37.
Thickness is d1 on the axis of first lens L1, meets following relationship：0.05≤d1/TTL≤0.15 is advantageously implemented
Ultrathin.Preferably, 0.08≤d1/TTL≤0.12.
In present embodiment, the object side of the second lens L2 is convex surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is positive refracting power.
The focal length of whole camera optical camera lens 10 is f, and the second lens L2 focal length f2 meet following relationship：2.84≤f2/
F≤13.72, by zone of reasonableness, effectively being balanced the positive light coke control of the second lens L2 with reasonable by having just
The curvature of field amount for the negative spherical aberration and system that first lens L1 of focal power is generated.Preferably, 4.54≤f2/f≤10.98.
The radius of curvature R 3 of second lens L2 objects side, the radius of curvature R 4 of the second lens L2 image side surfaces meet following pass
It is formula：- 132.06≤(R3+R4)/(R3-R4)≤301.73 is, it is specified that the shape of the second lens L2, when outside range, with
Camera lens develops to ultra-thin wide angle, it is difficult to the axis that makes corrections colouring Aberration Problem.Preferably, -82.53≤(R3+R4)/(R3-R4)≤
241.38。
Thickness is d3 on the axis of second lens L2, meets following relationship：0.02≤d3/TTL≤0.06 is advantageously implemented
Ultrathin.Preferably, 0.03≤d3/TTL≤0.05.
In present embodiment, the object side of the third lens L3 is convex surface in paraxial place, and image side surface is convex surface, tool in paraxial place
There is positive refracting power.
The focal length of whole camera optical camera lens 10 is f, the third lens L3 focal length f3, and meets following relationship：0.37
≤ f3/f≤1.37 are conducive to the ability that system obtains the good balance curvature of field, effectively to promote image quality.Preferably, 0.59
≤f3/f≤1.10。
The radius of curvature R 5 of the third lens L3 objects side, the radius of curvature R 6 of the third lens L3 image side surfaces meet following pass
It is formula：0.21≤(R5+R6)/(R5-R6)≤0.92 can effectively control the shape of the third lens L3, be conducive to the third lens L3
Molding, and avoid causing to be molded the generation of bad and stress because the surface curvature of the third lens L3 is excessive.Preferably, 0.34≤
(R5+R6)/(R5-R6)≤0.74。
Thickness is d5 on the axis of the third lens L3, meets following relationship：0.07≤d5/TTL≤0.22 is advantageously implemented
Ultrathin.Preferably, 0.11≤d5/TTL≤0.18.
In present embodiment, the object side of the 4th lens L4 is concave surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, and the 4th lens L4 focal length f4 meet following relationship：-2.45≤
F4/f≤- 0.63, passes through the reasonable distribution of focal power so that system has preferable image quality and lower sensibility.It is excellent
Choosing, -1.53≤f4/f≤- 0.78.
The radius of curvature R 7 of 4th lens L4 objects side, the radius of curvature R 8 of the 4th lens L4 image side surfaces meet following pass
It is formula：- 1.50≤(R7+R8)/(R7-R8)≤- 0.30, it is specified that be the 4th lens L4 shape, when outside range, with super
The development of thin wide angle, it is difficult to the problems such as drawing the aberration at angle outside the axis that makes corrections.Preferably, -0.94≤(R7+R8)/(R7-R8)≤-
0.37。
Thickness is d7 on the axis of 4th lens L4, meets following relationship：0.02≤d7/TTL≤0.08 is advantageously implemented
Ultrathin.Preferably, 0.04≤d7/TTL≤0.06.
In present embodiment, the object side of the 5th lens L5 is concave surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, and the 5th lens L5 focal length f5 meet following relationship：-2.95≤
F5/f≤- 0.46, can be effectively so that the light angle of pick-up lens be gentle to limiting for the 5th lens L5, and reduction tolerance is sensitive
Degree.Preferably, -1.84≤f5/f≤- 0.57.
The radius of curvature R 9 of 5th lens L5 objects side, the radius of curvature R 10 of the 5th lens L5 image side surfaces meet following pass
It is formula：- 1.44≤(R9+R10)/(R9-R10)≤0.27, it is specified that be the 5th lens L5 shape, when outside condition and range,
As ultra-thin wide angle develops, it is difficult to the problems such as drawing the aberration at angle outside the axis that makes corrections.Preferably, -0.90≤(R9+R10)/(R9-
R10)≤0.21。
Thickness is d9 on the axis of 5th lens L5, meets following relationship：0.03≤d9/TTL≤0.13 is advantageously implemented
Ultrathin.Preferably, 0.05≤d9/TTL≤0.11.
In present embodiment, the object side of the 6th lens L6 is convex surface in paraxial place, and image side surface is convex surface, tool in paraxial place
There is positive refracting power.
The focal length of whole camera optical camera lens 10 is f, and the 6th lens L6 focal length f6 meet following relationship：0.21≤f6/
F≤0.82 passes through the reasonable distribution of focal power so that system has preferable image quality and lower sensibility.Preferably,
0.34≤f6/f≤0.66。
The radius of curvature R 11 of 6th lens L6 objects side, the radius of curvature R 12 of the 6th lens L6 image side surfaces meet following
Relational expression：- 0.90≤(R11+R12)/(R11-R12)≤- 0.07, it is specified that be the 6th lens L6 shape, in condition and range
When outer, as ultra-thin wide angle develops, it is difficult to the problems such as drawing the aberration at angle outside the axis that makes corrections.Preferably, -0.56≤(R11+R12)/
(R11-R12)≤-0.09。
Thickness is d11 on the axis of 6th lens L6, meets following relationship：0.06≤d11/TTL≤0.20 is conducive to reality
Existing ultrathin.Preferably, 0.10≤d11/TTL≤0.16.
In present embodiment, the object side of the 7th lens L7 is concave surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, and the 7th lens L7 focal length f7 meet following relationship：-1.30≤
F7/f≤- 0.38, passes through the reasonable distribution of focal power so that system has preferable image quality and lower sensibility.It is excellent
Choosing, -0.81≤f7/f≤- 0.48.
The radius of curvature R 13 of 7th lens L7 objects side, the radius of curvature R 14 of the 7th lens L7 image side surfaces meet following
Relational expression：- 0.04≤(R13+R14)/(R13-R14)≤0, it is specified that be the 6th lens L6 shape, when outside condition and range,
As ultra-thin wide angle develops, it is difficult to the problems such as drawing the aberration at angle outside the axis that makes corrections.Preferably, -0.02≤(R13+R14)/(R13-
R14)≤0。
Thickness is d13 on the axis of 7th lens L7, meets following relationship：0.03≤d13/TTL≤0.08 is conducive to reality
Existing ultrathin.Preferably, 0.04≤d13/TTL≤0.07.
In present embodiment, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 5.06 millimeters, is advantageously implemented
Ultrathin.Preferably, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 4.83.
In present embodiment, the aperture F numbers of camera optical camera lens 10 are less than or equal to 1.85.Large aperture, imaging performance are good.
Preferably, the aperture F numbers of camera optical camera lens 10 are less than or equal to 1.82.
So design, enables to the optics overall length TTL of whole camera optical camera lens 10 to shorten as possible, maintains miniaturization
Characteristic.
The camera optical camera lens 10 of the present invention will be illustrated with example below.The recorded following institute of symbol in each example
Show.Distance on focal length, axis, radius of curvature, thickness on axis, point of inflexion position, stationary point position unit be mm.
TTL:Optical length (distance on the object side to the axis of imaging surface of the 1st lens L1), unit mm；
Preferably, it is also provided with the point of inflexion and/or stationary point on the object side of the lens and/or image side surface, with full
The imaging demand of sufficient high-quality, specifically can embodiment, join lower described.
Table 1, table 2 show the design data of the camera optical camera lens 10 of first embodiment of the invention.
【Table 1】
Wherein, the meaning of each symbol is as follows.
S1:Aperture；
R:Radius of curvature centered on when the radius of curvature of optical surface, lens；
R1:The radius of curvature of the object side of first lens L1；
R2:The radius of curvature of the image side surface of first lens L1；
R3:The radius of curvature of the object side of second lens L2；
R4:The radius of curvature of the image side surface of second lens L2；
R5:The radius of curvature of the object side of the third lens L3；
R6:The radius of curvature of the image side surface of the third lens L3；
R7:The radius of curvature of the object side of 4th lens L4；
R8:The radius of curvature of the image side surface of 4th lens L4；
R9:The radius of curvature of the object side of 5th lens L5；
R10:The radius of curvature of the image side surface of 5th lens L5；
R11:The radius of curvature of the object side of 6th lens L6；
R12:The radius of curvature of the image side surface of 6th lens L6；
R13:The radius of curvature of the object side of 7th lens L7；
R14:The radius of curvature of the image side surface of 7th lens L7；
R15:The radius of curvature of the object side of optical filtering piece GF；
R16:The radius of curvature of the image side surface of optical filtering piece GF；
d:Distance on axis on the axis of lens between thickness and lens；
d0：Distance on aperture S1 to the axis of the object side of the first lens L1；
d1：Thickness on the axis of first lens L1；
d2：Distance on the image side surface of first lens L1 to the axis of the object side of the second lens L2；
d3：Thickness on the axis of second lens L2；
d4：Distance on the image side surface of second lens L2 to the axis of the object side of the third lens L3；
d5：Thickness on the axis of the third lens L3；
d6：Distance on the image side surface of the third lens L3 to the axis of the object side of the 4th lens L4；
d7：Thickness on the axis of 4th lens L4；
d8：Distance on the image side surface of 4th lens L4 to the axis of the object side of the 5th lens L5；
d9：Thickness on the axis of 5th lens L5；
d10：Distance on the image side surface of 5th lens L5 to the axis of the object side of the 6th lens L6；
d11：Thickness on the axis of 6th lens L6；
d12：Distance on the image side surface of 6th lens L6 to the axis of the object side of the 7th lens L7；
d13：Thickness on the axis of 7th lens L7；
d14：Distance on the image side surface of 7th lens L7 to the axis of the object side of optical filtering piece GF；
d15：Thickness on the axis of optical filtering piece GF；
d16：Distance on the image side surface to the axis of image planes of optical filtering piece GF；
nd:The refractive index of d lines；
nd1:The refractive index of the d lines of first lens L1；
nd2:The refractive index of the d lines of second lens L2；
nd3:The refractive index of the d lines of the third lens L3；
nd4:The refractive index of the d lines of 4th lens L4；
nd5:The refractive index of the d lines of 5th lens L5；
nd6：The refractive index of the d lines of 6th lens L6；
nd7：The refractive index of the d lines of 7th lens L7；
ndg:The refractive index of the d lines of optical filtering piece GF；
vd:Abbe number；
v1：The Abbe number of first lens L1；
v2：The Abbe number of second lens L2；
v3：The Abbe number of the third lens L3；
v4：The Abbe number of 4th lens L4；
v5：The Abbe number of 5th lens L5；
v6：The Abbe number of 6th lens L6；
v7：The Abbe number of 7th lens L7；
vg：The Abbe number of optical filtering piece GF.
Table 2 shows the aspherical surface data of each lens in the camera optical camera lens 10 of first embodiment of the invention.
【Table 2】
Wherein, k is circular cone coefficient, and A4, A6, A8, A10, A12, A14, A16 are asphericity coefficients.
IH:Image height
Y=(x2/R)/[1+{1-(k+1)(x2/R2)}1/2]+A4x4+A6x6+A8x8+A10x10+A12x12+A14x14+
A16x16 (1)
For convenience, each lens face is aspherical using aspherical shown in above-mentioned formula (1).But this hair
The bright aspherical polynomial form for being not limited to the formula (1) expression.
Table 3, table 4 show the point of inflexion of each lens and stationary point in the camera optical camera lens 10 of first embodiment of the invention
Design data.Wherein, R1, R2 respectively represent object side and the image side surface of the first lens L1, and R3, R4 respectively represent the second lens L2
Object side and image side surface, R5, R6 respectively represent object side and the image side surface of the third lens L3, R7, R8 respectively represent the 4th thoroughly
The object side of mirror L4 and image side surface, R9, R10 respectively represent object side and the image side surface of the 5th lens L5, and R11, R12 are respectively represented
The object side of 6th lens L6 and image side surface, R13, R14 respectively represent object side and the image side surface of the 7th lens L7." the point of inflexion
Position " field corresponding data is vertical range of the point of inflexion set by each lens surface to 10 optical axis of camera optical camera lens.It " stays
Point position " field corresponding data is vertical range of the stationary point set by each lens surface to 10 optical axis of camera optical camera lens.
【Table 3】
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | Point of inflexion position 3 | |
| R1 | 0 | |||
| R2 | 0 | |||
| R3 | 1 | 0.565 | ||
| R4 | 1 | 0.745 | ||
| R5 | 1 | 0.865 | ||
| R6 | 0 | |||
| R7 | 0 | |||
| R8 | 1 | 0.345 | ||
| R9 | 0 | |||
| R10 | 3 | 0.095 | 1.195 | 1.255 |
| R11 | 1 | 0.505 | ||
| R12 | 1 | 0.465 | 0.835 | |
| R13 | 1 | 1.375 | ||
| R14 | 1 | 0.525 |
【Table 4】
| Stationary point number | Stationary point position 1 | |
| R1 | 0 | |
| R2 | 0 | |
| R3 | 0 | |
| R4 | 0 | |
| R5 | 0 | |
| R6 | 0 | |
| R7 | 0 | |
| R8 | 1 | 0.655 |
| R9 | 0 | |
| R10 | 1 | 0.155 |
| R11 | 1 | 0.885 |
| R12 | 0 | |
| R13 | 0 | |
| R14 | 1 | 1.065 |
Fig. 2, Fig. 3 respectively illustrate shooting light of the light Jing Guo first embodiment that wavelength is 470nm, 555nm and 650nm
Learn axial aberration and ratio chromatism, schematic diagram after camera lens 10.Fig. 4 then shows that the light that wavelength is 555nm is real by first
The curvature of field after the camera optical camera lens 10 of mode and distortion schematic diagram are applied, the curvature of field S of Fig. 4 is the curvature of field in sagitta of arc direction, and T is meridian
The curvature of field in direction.
The table 9 occurred afterwards show in each example 1,2,3 in various numerical value and conditional as defined in value corresponding to parameter.
As shown in table 9, first embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.984mm, and full filed image height is
2.9335mm, the field angle of diagonal are 77.84 °, wide-angle, ultra-thin, and on axis, the outer chromatic aberation of axis fully makes corrections, and have
There is outstanding optical signature.
(second embodiment)
Second embodiment is essentially identical with first embodiment, and symbol meaning is identical with first embodiment, below only
List difference.
Table 5, table 6 show the design data of the camera optical camera lens 20 of second embodiment of the invention.
【Table 5】
Table 6 shows the aspherical surface data of each lens in the camera optical camera lens 20 of second embodiment of the invention.
【Table 6】
Table 7, table 8 show the point of inflexion of each lens and stationary point in the camera optical camera lens 20 of second embodiment of the invention
Design data.
【Table 7】
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | Point of inflexion position 3 | |
| R1 | 0 | |||
| R2 | 0 | |||
| R3 | 1 | 0.625 | ||
| R4 | 1 | 0.665 | ||
| R5 | 1 | 0.585 | ||
| R6 | 0 | |||
| R7 | 0 | |||
| R8 | 1 | 0.265 | ||
| R9 | 0 | |||
| R10 | 3 | 0.185 | 1.235 | 1.285 |
| R11 | 1 | 0.395 | ||
| R12 | 2 | 0.335 | 0.635 | |
| R13 | 1 | 1.375 | ||
| R14 | 1 | 0.495 |
【Table 8】
| Stationary point number | Stationary point position 1 | |
| R1 | 0 | |
| R2 | 0 | |
| R3 | 1 | 0.945 |
| R4 | 0 | |
| R5 | 1 | 0.805 |
| R6 | 0 | |
| R7 | 0 | |
| R8 | 1 | 0.455 |
| R9 | 0 | |
| R10 | 1 | 0.335 |
| R11 | 1 | 0.795 |
| R12 | 0 | |
| R13 | 0 | |
| R14 | 1 | 0.925 |
Fig. 6, Fig. 7 respectively illustrate shooting light of the light Jing Guo second embodiment that wavelength is 470nm, 555nm and 650nm
Learn axial aberration and ratio chromatism, schematic diagram after camera lens 20.Fig. 8 then shows that the light that wavelength is 555nm is real by second
Apply the curvature of field after the camera optical camera lens 20 of mode and distortion schematic diagram.
Following table 9 lists the numerical value that each conditional is corresponded in present embodiment according to the above conditions.Obviously, this implementation
The imaging optical system of mode meets above-mentioned conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.984mm, and full filed image height is
2.9335mm, the field angle of diagonal are 78.25 °, wide-angle, ultra-thin, and on axis, the outer chromatic aberation of axis fully makes corrections, and have
There is outstanding optical signature.
【Table 9】
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment party of the present invention
Formula, and in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and model of the present invention
It encloses.
Claims (20)
1. a kind of camera optical camera lens, which is characterized in that the camera optical camera lens includes sequentially from object side to image side：First
Lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens；
The focal length of the camera optical camera lens is f, and the focal length of first lens is f1, and the focal length of the third lens is f3,
The focal length of 4th lens is f4, and the refractive index of second lens is n2, and the refractive index of the 6th lens is n6, described
The radius of curvature of 7th lens object side is R13, and the radius of curvature of the 7th lens image side surface is R14, meets following relationship
Formula：
1.51≤f1/f≤2.5；
1.7≤n2≤2.2；
-2≤f3/f4≤0；
-10≤(R13+R14)/(R13-R14)≤0；
1.7≤n6≤2.2。
2. camera optical camera lens according to claim 1, which is characterized in that the camera optical camera lens meets following relationship
Formula：
1.725≤f1/f≤2.306；
1.717≤n2≤2.011；
-1.394≤f3/f4≤-0.373；
-5.01≤(R13+R14)/(R13-R14)≤0；
1.715≤n6≤2.011。
3. camera optical camera lens according to claim 1, which is characterized in that first lens have positive refracting power,
Object side in it is paraxial be convex surface, image side surface in it is paraxial be concave surface；
The radius of curvature of the first lens object side is R1, and the radius of curvature of the first lens image side surface is R2, Yi Jisuo
It is d1 to state thickness on the axis of the first lens, and meets following relationship：
-8.72≤(R1+R2)/(R1-R2)≤-2.7；
0.05≤d1/TTL≤0.15。
4. camera optical camera lens according to claim 3, which is characterized in that the camera optical camera lens meets following relationship
Formula：
-5.45≤(R1+R2)/(R1-R2)≤-3.37；
0.08≤d1/TTL≤0.12。
5. camera optical camera lens according to claim 1, which is characterized in that second lens have positive refracting power,
Object side in it is paraxial be convex surface, image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal length of second lens is f2, the curvature of the second lens object side
Radius is R3, and the radius of curvature of the second lens image side surface is R4, and thickness is d3 on the axis of second lens, and under meeting
Row relational expression：
2.84≤f2/f≤13.72；
-132.06≤(R3+R4)/(R3-R4)≤301.73；
0.02≤d3/TTL≤0.06。
6. camera optical camera lens according to claim 5, which is characterized in that the camera optical camera lens meets following relationship
Formula：
4.54≤f2/f≤10.98；
-82.53≤(R3+R4)/(R3-R4)≤241.38；
0.03≤d3/TTL≤0.05。
7. camera optical camera lens according to claim 1, which is characterized in that the third lens have positive refracting power,
Object side in it is paraxial be convex surface, image side surface in it is paraxial be convex surface；
The focal length of the camera optical camera lens is f, and the focal length of the third lens is f3, the curvature of the third lens object side
Radius is R5, and the radius of curvature of the third lens image side surface is R6, and thickness is d5 on the axis of the third lens, and under meeting
Row relational expression：
0.37≤f3/f≤1.37；
0.21≤(R5+R6)/(R5-R6)≤0.92；
0.07≤d5/TTL≤0.22。
8. camera optical camera lens according to claim 7, which is characterized in that the camera optical camera lens meets following relationship
Formula：
0.59≤f3/f≤1.10；
0.34≤(R5+R6)/(R5-R6)≤0.74；
0.11≤d5/TTL≤0.18。
9. camera optical camera lens according to claim 1, which is characterized in that the 4th lens have negative refracting power,
Object side in it is paraxial be concave surface, image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal length of the 4th lens is f4, the curvature of the 4th lens object side
Radius is R7, and the radius of curvature of the 4th lens image side surface is R8, and thickness is d7 on the axis of the 4th lens, and under meeting
Row relational expression：
-2.45≤f4/f≤-0.63；
-1.50≤(R7+R8)/(R7-R8)≤-0.30；
0.02≤d7/TTL≤0.08。
10. camera optical camera lens according to claim 9, which is characterized in that the camera optical camera lens meets following pass
It is formula：
-1.53≤f4/f≤-0.78；
-0.94≤(R7+R8)/(R7-R8)≤-0.37；
0.04≤d7/TTL≤0.06。
11. camera optical camera lens according to claim 1, which is characterized in that the 5th lens have negative refracting power,
Object side in it is paraxial be concave surface, image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal length of the 5th lens is f5, the curvature of the 5th lens object side
Radius is R9, and the radius of curvature of the 5th lens image side surface is R10, and thickness is d9 on the axis of the 5th lens, and is met
Following relationship：
-2.95≤f5/f≤-0.46；
-1.44≤(R9+R10)/(R9-R10)≤0.27；
0.03≤d9/TTL≤0.13。
12. camera optical camera lens according to claim 11, which is characterized in that the camera optical camera lens meets following pass
It is formula：
-1.84≤f5/f≤-0.57；
-0.90≤(R9+R10)/(R9-R10)≤0.21；
0.05≤d9/TTL≤0.11。
13. camera optical camera lens according to claim 1, which is characterized in that the 6th lens have positive refracting power,
Object side in it is paraxial be convex surface, image side surface in it is paraxial be convex surface；
The focal length of the camera optical camera lens is f, and the focal length of the 6th lens is f6, the curvature of the 6th lens object side
Radius is R11, and the radius of curvature of the 6th lens image side surface is R12, and thickness is d11 on the axis of the 6th lens, and full
Sufficient following relationship：
0.21≤f6/f≤0.82；
-0.90≤(R11+R12)/(R11-R12)≤-0.07；
0.06≤d11/TTL≤0.20。
14. camera optical camera lens according to claim 13, which is characterized in that the camera optical camera lens meets following pass
It is formula：
0.34≤f6/f≤0.66；
-0.56≤(R11+R12)/(R11-R12)≤-0.09；
0.10≤d11/TTL≤0.16。
15. camera optical camera lens according to claim 1, which is characterized in that the 7th lens have negative refracting power,
Object side in it is paraxial be concave surface, image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal length of the 7th lens is f7, the curvature of the 7th lens object side
Radius is R13, and the radius of curvature of the 7th lens image side surface is R14, and thickness is d13 on the axis of the 7th lens, and full
Sufficient following relationship：
-1.30≤f7/f≤-0.38；
-0.04≤(R13+R14)/(R13-R14)≤0；
0.03≤d13/TTL≤0.08。
16. camera optical camera lens according to claim 15, which is characterized in that the camera optical camera lens meets following pass
It is formula：
-0.81≤f7/f≤-0.48；
-0.02≤(R13+R14)/(R13-R14)≤0；
0.04≤d13/TTL≤0.07。
17. camera optical camera lens according to claim 1, which is characterized in that the optics overall length of the camera optical camera lens
TTL is less than or equal to 5.06 millimeters.
18. camera optical camera lens according to claim 17, which is characterized in that the optics overall length of the camera optical camera lens
TTL is less than or equal to 4.83 millimeters.
19. camera optical camera lens according to claim 1, which is characterized in that the aperture F numbers of the camera optical camera lens are small
In or equal to 1.85.
20. camera optical camera lens according to claim 19, which is characterized in that the aperture F numbers of the camera optical camera lens
Less than or equal to 1.82.
Priority Applications (3)
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| CN201810388550.3A CN108363186B (en) | 2018-04-26 | 2018-04-26 | Image pickup optical lens |
| US16/000,853 US10558017B2 (en) | 2018-04-26 | 2018-06-05 | Camera optical lens |
| JP2018114101A JP6532178B1 (en) | 2018-04-26 | 2018-06-15 | Imaging optical lens |
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| CN201810388550.3A CN108363186B (en) | 2018-04-26 | 2018-04-26 | Image pickup optical lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109856771A (en) * | 2018-12-27 | 2019-06-07 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110007426A (en) * | 2018-12-27 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110297310A (en) * | 2019-06-29 | 2019-10-01 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110346904A (en) * | 2019-06-29 | 2019-10-18 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| WO2020134265A1 (en) * | 2018-12-27 | 2020-07-02 | 瑞声通讯科技(常州)有限公司 | Photographic optical lens |
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| JPH01193808A (en) * | 1988-01-29 | 1989-08-03 | Asahi Optical Co Ltd | Zoom lens for compact camera |
| CN1155848C (en) * | 1998-01-06 | 2004-06-30 | 佳能株式会社 | Observation optical system and optical apparatus having the same |
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|---|---|---|---|---|
| US11249282B2 (en) | 2018-06-06 | 2022-02-15 | Largan Precision Co., Ltd. | Photographing optical lens assembly, imaging apparatus and electronic device |
| CN109856771A (en) * | 2018-12-27 | 2019-06-07 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110007426A (en) * | 2018-12-27 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| WO2020134265A1 (en) * | 2018-12-27 | 2020-07-02 | 瑞声通讯科技(常州)有限公司 | Photographic optical lens |
| WO2020134263A1 (en) * | 2018-12-27 | 2020-07-02 | 瑞声通讯科技(常州)有限公司 | Camera optical lens |
| CN110297310A (en) * | 2019-06-29 | 2019-10-01 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110346904A (en) * | 2019-06-29 | 2019-10-18 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110297310B (en) * | 2019-06-29 | 2021-09-24 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
| WO2021253554A1 (en) * | 2020-06-16 | 2021-12-23 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
| JP2022042464A (en) * | 2020-09-02 | 2022-03-14 | エーエーシー オプティックス （ソシュウ） カンパニーリミテッド | Image capturing optical lens |
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