CN102466866B - Optical camera lens group - Google Patents
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- CN102466866B CN102466866B CN 201010550692 CN201010550692A CN102466866B CN 102466866 B CN102466866 B CN 102466866B CN 201010550692 CN201010550692 CN 201010550692 CN 201010550692 A CN201010550692 A CN 201010550692A CN 102466866 B CN102466866 B CN 102466866B
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Abstract
The invention discloses an optical camera lens group, which comprises a first lens, a second lens, a third lens and a fourth lens in sequence from an object side to an image side. The first lens has positive refractive power, and the surface of the object side of the first lens adopts a convex surface. The second lens has negative refractive power, the surface of the object side of the second lens adopts a concave surface, and the surface of the image side of the second lens adopts the convex surface. The third lens has positive refractive power, and the surfaces of the object side and the image side of the third lens both adopt convex surfaces. The surface of the object side of the fourth lens adopts the convex surface, the surface of the image side of the fourth lens adopts the concave surface, and the both surfaces are non-spherical. The four lenses of the optical camera lens group all have refractive power. With the configuration mode of the optical camera lens group, the size of the camera lens and the sensitivity of the system can be effectively reduced, and higher resolving power can be obtained.
Description
Technical field
The invention relates to a kind of optical camera lens group, and particularly relevant for a kind of miniaturization optical camera lens group that is applied on electronic product.
Background technology
In recent years, along with the rise of the portable electronic product with camera function, the demand of miniaturization pick-up lens day by day improves.The photosensory assembly of general pick-up lens is nothing more than being photosensitive coupling component (Charge Coupled Device, CCD) or two kinds of complementary matal-oxide semiconductor assemblies (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor).And due to progressing greatly of technology, make the Pixel Dimensions of photosensory assembly dwindle, the miniaturization pick-up lens is past high pixel field development gradually, therefore, and to the also increase day by day of requirement of image quality.
Tradition is equipped on the miniaturization pick-up lens on portable electronic product, many employing three-chip type lens arrangements are main, lens combination is born the second lens of refracting power and the 3rd lens of a positive refracting power of tool by thing side to the first lens that is sequentially a positive refracting power of tool as side, a tool, as United States Patent (USP) the 7th, shown in 145, No. 736.
But due to the progress of technology and electronic product under the trend of lightening development, the photosensory assembly Pixel Dimensions constantly dwindles, make system more improve the requirement of image quality, known three-chip type lens combination can't satisfy the more camera lens module of high-order.In addition, United States Patent (USP) the 7th, 365 has disclosed a kind of four-piece type lens combination No. 920, and wherein first lens and the second lens are bonded to each other and become Doublet (doublet) with two sheet glass spherical mirrors, in order to color difference eliminating.But the method has its shortcoming, one, and too much glass spherical mirror configuration makes degree of freedom in system not enough, causes the total length of system to be difficult for shortening; Its two, the bonding technique of glass mirror is difficult for, and easily forms the difficulty on making.Therefore, be badly in need of a kind of high-pixel mobile phone camera that can be used for, be easy to make and the unlikely long optical camera lens group of camera lens total length that makes.
Summary of the invention
The object of the present invention is to provide a kind of high-pixel mobile phone camera that can be used for, be easy to make and the unlikely long optical camera lens group of camera lens total length that makes.
According to the invention provides an optical camera lens group, sequentially by the thing side to looking like side, comprise a first lens, one second lens, one the 3rd lens, one the 4th lens.First lens has positive refracting power, and the thing side surface of first lens is convex surface.The second lens have negative refracting power, and its thing side surface is concave surface, is convex surface as side surface.The 3rd lens have positive refracting power, its thing side surface and be all convex surface as side surface.Its thing side surface of the 4th lens is convex surface, is concave surface as side surface, and its thing side surface and be all aspheric surface as side surface.Wherein, the optical camera lens group comprises an aperture, the distance of aperture to an imaging surface on optical axis is SL, distance on optical axis is TTL to the thing side surface of first lens to imaging surface, and the thing side surface radius-of-curvature of first lens is R1, is R2 as the side surface radius-of-curvature, the thing side surface radius-of-curvature of the second lens is R3, is R4 as the side surface radius-of-curvature, satisfies following relationship:
-5.0＜(R3+R4)/(R3-R4)＜-2.0；
| R1/R2|＜0.5; And
0.80＜SL/TTL＜1.20。
According to one embodiment of the invention, wherein the 4th lens have the point of inflexion, and are plastic material.
According to one embodiment of the invention, wherein the 4th lens have negative refracting power.
According to one embodiment of the invention, wherein this first lens and the distance of these the second lens on optical axis are T12, and the focal length of this optical camera lens group is f, and satisfy following relationship:
0.13＜T12/f＜0.27。
According to one embodiment of the invention, wherein the thing side surface radius-of-curvature of these the second lens is R3, is R4 as the side surface radius-of-curvature, satisfies following relationship:
-3.5＜(R3+R4)/(R3-R4)＜-2.3。
According to one embodiment of the invention, wherein the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, and satisfies following relationship:
0.92＜SL/TTL＜1.10。
According to one embodiment of the invention, wherein the thing side surface radius-of-curvature of the 3rd lens is R5, is R6 as the side surface radius-of-curvature, and satisfies following relationship:
-2.7＜R5/R6＜-0.9。
According to one embodiment of the invention, wherein the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, and satisfies following relationship:
28.0＜V1-V2＜42.0。
According to one embodiment of the invention, wherein the thing side surface radius-of-curvature of the 4th lens is R7, is R8 as the side surface radius-of-curvature, and satisfies following relationship:
3.0＜(R7+R8)/(R7-R8)＜25.0。
According to one embodiment of the invention, wherein the focal length of this optical camera lens group is f, and the focal length of the 4th lens is f4, and satisfies following relationship:
-0.7＜f/f4＜0.0。
According to one embodiment of the invention, wherein the thing side surface radius-of-curvature of this first lens is R1, is R2 as the side surface radius-of-curvature, satisfies following relationship:
|R1/R2|＜0.2。
According to one embodiment of the invention, wherein the thickness of the 3rd lens on optical axis is CT3, and the focal length of this optical camera lens group is f, and satisfies following relationship:
0.07＜CT3/f＜0.28。
According to one embodiment of the invention, wherein the focal length of this optical camera lens group is f, and the focal length of these the second lens is f2, and satisfies following relationship:
-1.3＜f/f2＜-0.9。
According to one embodiment of the invention, wherein the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, this optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and satisfies following relationship:
TTL/ImgH＜1.95。
On the other hand, according to the invention provides an optical camera lens group, extremely sequentially comprise a first lens, one second lens, one the 3rd lens and one the 4th lens as side by the thing side.First lens has positive refracting power, and the thing side surface of first lens is convex surface.The second lens have negative refracting power, and the thing side surface of the second lens is concave surface.The 3rd lens have positive refracting power, and the thing side surface of the 3rd lens and be all convex surface as side surface.The 4th lens be concave surface as side surface, and have the point of inflexion.Wherein, the optical camera lens group comprises an aperture, the distance of aperture to an imaging surface on optical axis is SL, the thing side surface of first lens to the distance of imaging surface on an optical axis is TTL, the focal length of optical camera lens group is f, and first lens and the distance of the second lens on optical axis are T12, and the thing side surface radius-of-curvature of the 3rd lens is R5, is R6 as the side surface radius-of-curvature, the thickness of the 3rd lens on optical axis is CT3, satisfies following relationship:
-2.7＜R5/R6＜-0.9；
0.13＜T12/f＜0.27；
0.07＜CT3/f＜0.28; And
0.92＜SL/TTL＜1.10。
According to another embodiment of the present invention, wherein the 3rd lens have at least one non-spherical surface, and the 4th lens are plastic material.
According to another embodiment of the present invention, wherein these the second lens is convex surface as side surface.
According to another embodiment of the present invention, wherein the thing side surface of the 4th lens is convex surface, and the focal length of this optical camera lens group is f, and the focal length of the 4th lens is f4, and satisfies following relationship:
-0.7＜f/f4＜0.0。
According to another embodiment of the present invention, wherein the thing side surface radius-of-curvature of this first lens is R1, is R2 as the side surface radius-of-curvature, and satisfies following relationship:
|R1/R2|＜0.2。
According to another embodiment of the present invention, wherein the thing side surface radius-of-curvature of these the second lens is R3, is R4 as the side surface radius-of-curvature, and satisfies following relationship:
-5.0＜(R3+R4)/(R3-R4)＜-2.0。
According to another embodiment of the present invention, wherein the focal length of this optical camera lens group is f, and the focal length of these the second lens is f2, and satisfies following relationship:
-1.3＜f/f2＜-0.9。
According to another embodiment of the present invention, wherein the thing side surface of this first lens to the distance of this imaging surface on an optical axis is TTL, this optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and satisfies following relationship:
TTL/ImgH＜1.95。
Wherein, first lens has positive refracting power, and optical camera lens group part refracting power can be provided, and helps to shorten the total length of optical camera lens.The second lens tool is born refracting power, but the aberration that its revisal first lens produces, and can revise the aberration of optical camera lens integral body.The 3rd positive refracting power of lens tool can distribute the refracting power of first lens, reduces the susceptibility of optical camera lens group.The thing side surface of the 3rd lens is convex surface, also is convex surface as side surface, can strengthen whereby the positive refracting power of the 3rd lens, can further dwindle the optics total length of optical camera lens group.
When (R3+R4)/(R3-R4) satisfied the above-mentioned relation formula, the lens shape of the second lens was conducive to revise the aberration that first lens produces, and the refracting power of the second lens is conducive to reduce the susceptibility of optical camera lens group integral body.And work as | when R1/R2| satisfied the above-mentioned relation formula, first lens was conducive to the revisal of optical camera lens group spherical aberration (Spherical Aberration).When SL/TTL satisfies the above-mentioned relation formula, namely be conducive to the optical camera lens group and obtain good effect in heart characteristic far away again.
When R5/R6 satisfies the above-mentioned relation formula, be conducive to the astigmatism of update the system.And when T12/f satisfies the above-mentioned relation formula, be conducive to the assembled configuration between eyeglass, and more help the space utilization of optical camera lens group, promote the miniaturization of camera lens.And when CT3/f satisfied the above-mentioned relation formula, the thickness of the 3rd lens was conducive to the manufacturing of lens and dwindles the volume of whole optical camera lens group.
Therefore, optical camera lens group provided by the invention, it can dwindle the camera lens volume, reduce system sensitivity, more can obtain higher resolving power.
Description of drawings
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, appended the description of the drawings is as follows:
Fig. 1 is the schematic diagram that illustrates according to a kind of optical camera lens group of the embodiment of the present invention 1;
Fig. 2 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 1 and distorts curve map;
Fig. 3 is the schematic diagram that illustrates according to a kind of optical camera lens group of the embodiment of the present invention 2;
Fig. 4 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 2 and distorts curve map;
Fig. 5 is the schematic diagram that illustrates according to a kind of optical camera lens group of the embodiment of the present invention 3;
Fig. 6 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 3 and distorts curve map;
Fig. 7 is the schematic diagram that illustrates according to a kind of optical camera lens group of the embodiment of the present invention 4;
Fig. 8 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 4 and distorts curve map;
Fig. 9 is the schematic diagram that illustrates according to a kind of optical camera lens group of the embodiment of the present invention 5;
Figure 10 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 5 and distorts curve map;
Figure 11 is the schematic diagram that illustrates according to a kind of optical camera lens group of the embodiment of the present invention 6;
Figure 12 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 6 and distorts curve map.
[primary clustering symbol description]
Aperture: 100,200,300,400,500,600
First lens: 110,210,310,410,510,610
Thing side surface: 111,211,311,411,511,611
Picture side surface: 112,212,312,412,512,612
The second lens: 120,220,320,420,420,620
Thing side surface: 121,221,321,421,521,621
Picture side surface: 122,222,322,422,522,622
The 3rd lens: 130,230,330,430,530,630
Thing side surface: 131,231,331,431,531,631
Picture side surface: 132,232,332,432,532,632
The 4th lens: 140,240,340,440,540,640
Thing side surface: 141,241,341,441,541,641
Picture side surface: 142,242,342,442,542,642
Imaging surface: 150,250,350,450,550,650
Infrared ray filtering optical filter: 160,260,360,460,560,660
Sheet glass: 170,370,670
F: the focal length of whole optical camera lens group
F2: the focal length of the second lens
F4: the focal length of the 4th lens
V1: the abbe number of first lens
V2: the abbe number of the second lens
CT3: the thickness of the 3rd lens on optical axis
T12: first lens and the distance of the second lens on optical axis
R1: the thing side surface radius-of-curvature of first lens
R2: the picture side surface radius-of-curvature of first lens
R3: the thing side surface radius-of-curvature of the second lens
R4: the picture side surface radius-of-curvature of the second lens
R5: the thing side surface radius-of-curvature of the 3rd lens
R6: the picture side surface radius-of-curvature of the 3rd lens
R7: the thing side surface radius-of-curvature of the 4th lens
R8: the picture side surface radius-of-curvature of the 4th lens
SL: aperture is the distance on optical axis to imaging surface
TTL: the thing side surface of first lens is the distance on optical axis to imaging surface
ImgH: half of sense electronics optical assembly effective pixel area diagonal line length
Embodiment
The invention provides a kind of optical camera lens group, sequentially arranged to comprising first lens, the second lens, the 3rd lens and the 4th lens as side by the thing side, a sense electronics optical assembly separately is set in imaging surface.
First lens has positive refracting power, and optical camera lens group part refracting power can be provided, and helps to shorten the total length of optical camera lens.And, the thing side surface of first lens and all can be convex surface as side surface, or the thing side surface is convex surface, is the crescent lens of concave surface as side surface.When the thing side surface of first lens and when being all convex surface as side surface, can strengthen the configuration of first lens refracting power, and then make the total length of optical camera lens group shorten; And first lens can be revised the astigmatism of optical camera lens group when being aforementioned crescent lens.
The second lens tool is born refracting power, but the aberration that its revisal first lens produces, and can revise the aberration of optical camera lens integral body.The thing side surface of the second lens and all can be concave surface as side surface, or the thing side surface is concave surface, is convex surface as side surface.When the second lens thing side surface and when being all concave surface as side surface, the petzval sum (Petzval Sum) of optical camera lens group integral body can be revised, and the back focal length of system can be increased, guarantee that the optical camera lens group has enough back focal length can place other assembly; Or be concave surface, when being convex surface as side surface, can revise the astigmatism of optical camera lens group when the second lens thing side surface, promote whole image quality.
The 3rd positive refracting power of lens tool can distribute the refracting power of first lens, reduces the susceptibility of optical camera lens group.The thing side surface of the 3rd lens is convex surface, also is convex surface as side surface, can strengthen whereby the positive refracting power of the 3rd lens, and then make the total length of optical camera lens group shorten, and can distribute the refracting power of first lens, to reduce whole optical camera lens group susceptibility.
The 4th lens can be had a negative refracting power, and can have the point of inflexion.When the negative refracting power of the 4th lens tool, its principal point (Principle point) that can make the optical camera lens group to shorten its optics total length, promotes the camera lens miniaturization away from imaging surface.The 4th lens be concave surface as side surface, and the complex side surface is convex surface, to revise astigmatism and the higher order aberratons of optical camera lens group.
The thing side surface radius-of-curvature of the second lens is R3, is R4 as the side surface radius-of-curvature, and it satisfies following relationship:
-5.0＜(R.3+R4)/(R3-R4)＜-2.0，
Whereby, the second lens can be revised the aberration that first lens produces, and the refracting power of the second lens own can be not excessive, so as to reducing the susceptibility of optical camera lens group.
In addition, the optical camera lens group can further satisfy following relationship:
-3.5＜(R3+R4)/(R3-R4)＜-2.3。
The thing side surface radius-of-curvature of first lens is R1, is R2 as the side surface radius-of-curvature, and it satisfies following relationship:
|R1/R2|＜0.5，
Whereby, but the whole spherical aberration of revisal optical camera lens group.
In addition, the optical camera lens group can further satisfy following relationship:
|R1/R2|＜0.2。
The optical camera lens group comprises an aperture, and the distance on optical axis is SL to aperture to imaging surface, and the distance on optical axis is TTL and the thing side surface of first lens is to imaging surface, and it satisfies following relationship:
0.80＜SL/TTL＜1.20，
Less than 0.80 the time, the light angle that is incident on the sense electronics optical assembly is excessive as this SL/TTL, easily causes the shortcoming that photosensitive effect is bad and aberration is excessive.Again as SL/TTL greater than 1.20 the time, can make the overall optical system total length long.Therefore, this optical imaging lens group can obtain the advantage of heart characteristic far away and be unlikely to make whole total length long satisfied 0.80＜SL/TTL＜1.20 o'clock.
In addition, the optical camera lens group can further satisfy following relationship:
0.92＜SL/TTL＜1.10。
Specifically, first lens and the distance of the second lens on optical axis are T12, and the focal length of optical camera lens group is f, and satisfy following relationship:
0.13＜T12/f＜0.27，
Whereby, the spacing distance in the optical camera lens group between lens is conducive to the assembled configuration of lens, more helps the utilization in optical camera lens group space, to promote the miniaturization of camera lens.
The thing side surface radius-of-curvature of the 3rd lens is R5, is R6 as the side surface radius-of-curvature, and it satisfies following relationship:
-2.7＜R5/R6＜-0.9，
Whereby, revise the astigmatism of optical camera lens group.
The abbe number of first lens is V1, and the abbe number of the second lens is V2, and it satisfies following relationship:
28.0＜V1-V2＜42.0，
Whereby, be conducive to the correction of aberration in the optical camera lens group.
The thing side surface radius-of-curvature of the 4th lens is R7, is R8 as the side surface radius-of-curvature, and it satisfies following relationship:
3.0＜(R7+R8)/(R7-R8)＜25.0，
Whereby, can revise the higher order aberratons of optical camera lens group.
The focal length of the 4th lens is f4, and the focal length of optical camera lens group is f, and it satisfies following relationship:
-0.7＜f/f4＜0.0，
Whereby, the refracting power of the 4th lens is comparatively suitable, can make the principal point of optical camera lens group away from imaging surface, to shorten the optics total length of optical camera lens group, to promote the miniaturization of camera lens.
The thickness of the 3rd lens on optical axis is CT3, and it satisfies following relationship:
0.07＜CT3/f＜0.28，
Whereby, the manufacturing that is conducive to eyeglass with dwindle the volume of whole optical camera lens group.
The focal length of the second lens is f2, and the focal length of optical camera lens group is f, and it satisfies following relationship:
-1.3＜f/f2＜-0.9，
Whereby, the refracting power of the second lens can be revised optical camera lens group aberration.
Distance on optical axis is TTL to the thing side surface of first lens to imaging surface, and the optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface, and half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it can satisfy following relationship:
TTL/ImgH＜1.95，
Whereby, be conducive to keep the miniaturization of optical camera lens group, to be equipped on frivolous portable electronic product.
According to above-mentioned embodiment, below propose specific embodiment and coordinate graphic detailed description the in detail.
Please refer to Fig. 1 and 2, wherein Fig. 1 illustrates the schematic diagram according to a kind of optical camera lens group of the embodiment of the present invention 1, and Fig. 2 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 1 and distorts curve map.As shown in Figure 1, the optical camera lens group of embodiment 1 extremely sequentially comprises aperture 100, first lens 110, the second lens 120, the 3rd lens 130, the 4th lens 140, infrared ray filtering optical filter (IR Filter) 160, sheet glass 170 and imaging surface 150 as side by the thing side.
The material of first lens 110 is plastics, and it has positive refracting power, and the thing side surface 111 of first lens 110 is convex surface, is concave surface as side surface 112, and its thing side surface 111 and be all aspheric surface (Aspheric as side surface 112; Asp).
The material of the second lens 120 is plastics, and it has negative refracting power, and the thing side surface 121 of the second lens 120 is concave surface, is convex surface as side surface 122, and its thing side surface 121 and be all aspheric surface as side surface 122.
The material of the 3rd lens 130 is plastics, and it has positive refracting power, the thing side surface 131 of the 3rd lens 130 and be all convex surface as side surface 132, and its thing side surface 131 and be all aspheric surface as side surface 132.
The material of the 4th lens 140 is plastics, and it has negative refracting power, and the thing side surface 141 of the 4th lens 140 is convex surface, is concave surface as side surface 142, and its thing side surface 141 and be all aspheric surface as side surface 142.In addition, the 4th lens 140 have the point of inflexion.
After infrared ray filtering optical filter 160 and sheet glass 170 sequentially are arranged at the 4th lens 140, do not affect the focal length of optical camera lens group.
The aspheric curvilinear equation formula of above-mentioned each lens is expressed as follows:
Wherein:
X: be the point of Y apart from optical axis on aspheric surface, itself and the relative height that is tangential on the tangent plane on summit on the aspheric surface optical axis;
Y: the point on aspheric curve and the distance of optical axis;
K: conical surface coefficient; And
Ai: i rank asphericity coefficient.
In the optical camera lens group of embodiment 1, the focal length of whole optical camera lens group is f, and the f-number of whole optical camera lens group (f-number) is Fno, and in whole optical camera lens group, half of maximum visual angle is HFOV, and its relational expression is:
f＝3.30mm；
Fno＝2.85；
The HFOV=34.0 degree.
In the optical camera lens group of embodiment 1, the abbe number of first lens 110 (Abbe number) is V1, and the abbe number of the second lens 120 is V2, and its pass is:
V1-V2＝32.4。
In the optical camera lens group of embodiment 1, the thickness of the 3rd lens 130 on optical axis is CT3, and the pass of the focal distance f of itself and whole optical camera lens group is:
CT3/f＝0.22。
In the optical camera lens group of embodiment 1, first lens 110 and the distance of the second lens 120 on optical axis are T12, and the pass of the focal distance f of itself and whole optical camera lens group is:
T12/f＝0.19。
In the optical camera lens group of embodiment 1, thing side surface 111 radius-of-curvature of first lens 110 are R1, are R2 as side surface 112 radius-of-curvature, thing side surface 121 radius-of-curvature of the second lens 120 are R3, are R4 as side surface 122 radius-of-curvature, thing side surface 131 radius-of-curvature of the 3rd lens 130 are R5, are R6 as side surface 132 radius-of-curvature, thing side surface 141 radius-of-curvature of the 4th lens 140 are R7, are R8 as side surface 142 radius-of-curvature, and its pass is:
|R1/R2|＝0.03；
R5/R6＝-1.20；
(R3+R4)/(R3-R4)＝-3.01；
(R7+R8)/(R7-R8)＝7.06。
In the optical camera lens group of embodiment 1, the focal length of the second lens 120 is f2, and the focal length of the 4th lens 140 is f4, and the relation of the focal distance f of itself and whole optical camera lens group is respectively:
f/f2＝-1.02；
f/f4＝-0.29。
In the optical camera lens group of embodiment 1, aperture 100 is SL to the distance of imaging surface 150 on optical axis, and the thing side surface 111 of first lens 110 is TTL to the distance of imaging surface 150 on optical axis, and its pass is:
SL/TTL＝0.98。
In the optical camera lens group of embodiment 1, the optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface 150, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 111 to the pass that the distance of imaging surface 150 on optical axis is TTL of itself and first lens 110 is:
TTL/ImgH＝1.83。
Cooperation is with reference to table one, table two A and table two B, and wherein table one is the detailed structured data of Fig. 1 embodiment 1, and table two A and table two B are the aspherical surface data in embodiment 1.
Table one
Asphericity coefficient
Table two A
Asphericity coefficient
Table two B
In table, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents by the surface of thing side to the picture side, and in table two A and table two B, k represents the conical surface coefficient in the aspheric curve equation, and A1-A16 represents each surperficial 1-16 rank asphericity coefficient.
Please refer to Fig. 3 and 4, wherein Fig. 3 illustrates the schematic diagram according to a kind of optical camera lens group of the embodiment of the present invention 2, and Fig. 4 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 2 and distorts curve map.As shown in Figure 3, embodiment 2 optical camera lens groups extremely sequentially comprise first lens 210, aperture 200, the second lens 220, the 3rd lens 230, the 4th lens 240, infrared ray filtering optical filter (IR Filter) 260 and imaging surface 250 as side by the thing side.
Further illustrate, the material of the first lens 210 of embodiment 2 is plastics, and it has positive refracting power, and the thing side surface 211 of first lens 210 is convex surface, is concave surface as side surface 212, and its thing side surface 211 and be all aspheric surface as side surface 212.
The material of the second lens 220 is plastics, and it has negative refracting power, and the thing side surface 221 of the second lens 220 is concave surface, is convex surface as side surface 222, and its thing side surface 221 and be all aspheric surface as side surface 222.
The material of the 3rd lens 230 is plastics, and it has positive refracting power, the thing side surface 231 of the 3rd lens 230 and be all convex surface as side surface 232, and its thing side surface 231 and be all aspheric surface as side surface 232.
The material of the 4th lens 240 is plastics, and it has negative refracting power, and the thing side surface 241 of the 4th lens 240 is convex surface, is concave surface as side surface 242, and its thing side surface 241 and be all aspheric surface as side surface 242.In addition, the 4th lens 240 have the point of inflexion.
After infrared ray filtering optical filter 260 is arranged at the 4th lens 240, do not affect the focal length of optical camera lens group.
In embodiment 2, aspheric curvilinear equation formula represents the form as embodiment 1, does not add at this and gives unnecessary details.
In the optical camera lens group of embodiment 2, the focal length of whole optical camera lens group is f, and the f-number of whole optical camera lens group (f-number) is Fno, and in whole optical camera lens group, half of maximum visual angle is HFOV, and its relational expression is:
f＝3.06mm；
Fno＝3.00；
The HFOV=36.2 degree.
In the optical camera lens group of embodiment 2, the abbe number of first lens 210 (Abbe number) is V1, and the abbe number of the second lens 220 is V2, and its pass is:
V1-V2＝34.5。
In the optical camera lens group of embodiment 2, the thickness of the 3rd lens 330 on optical axis is CT3, and the pass of the focal distance f of itself and whole optical camera lens group is:
CT3/f＝0.25。
In the optical camera lens group of embodiment 2, first lens 210 and the distance of the second lens 220 on optical axis are T12, and the pass of the focal distance f of itself and whole optical camera lens group is:
T12/f＝0.20。
In the optical camera lens group of embodiment 2, thing side surface 211 radius-of-curvature of first lens 210 are R1, are R2 as side surface 212 radius-of-curvature, thing side surface 221 radius-of-curvature of the second lens 220 are R3, are R4 as side surface 222 radius-of-curvature, thing side surface 231 radius-of-curvature of the 3rd lens 230 are R5, are R6 as side surface 232 radius-of-curvature, thing side surface 241 radius-of-curvature of the 4th lens 240 are R7, are R8 as side surface 242 radius-of-curvature, and its pass is:
|R1/R2|＝0.08；
R5/R6＝-1.71；
(R3+R4)/(R3-R4)＝-2.89；
(R7+R8)/(R7-R8)＝5.49。
In optical camera lens group in embodiment 2, the focal length of the second lens 220 is f2, and the focal length of the 4th lens 240 is f4, and the relation of the focal distance f of itself and whole optical camera lens group is respectively:
f/f2＝-0.98；
f/f4＝-0.41。
In the optical camera lens group of embodiment 2, aperture 200 is SL to the distance of imaging surface 250 on optical axis, and the thing side surface 211 of first lens 210 is TTL to the distance of imaging surface 250 on optical axis, and its pass is:
SL/TTL＝0.88。
In the optical camera lens group of embodiment 2, the optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface 250, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 211 to the pass that the distance of imaging surface 250 on optical axis is TTL of itself and first lens 210 is:
TTL/ImgH＝1.81。
Please coordinate with reference to table three, table four A and table four B, wherein table three is the detailed structured data of Fig. 3 embodiment 2, and table four A and table four B are the aspherical surface data in embodiment 2.
Table three
Asphericity coefficient
Table four A
Asphericity coefficient
Table four B
In table three, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 sequentially represents by the surface of thing side to the picture side.In table four A and table four B, k represents the conical surface coefficient in the aspheric curve equation, and A1-A16 represents each surperficial 1-16 rank asphericity coefficient.
Please refer to Fig. 5 and 6, wherein Fig. 5 illustrates the schematic diagram according to a kind of optical camera lens group of the embodiment of the present invention 3, and Fig. 6 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 3 and distorts curve map.As shown in Figure 5, the optical camera lens group of embodiment 3 extremely sequentially comprises aperture 300, first lens 310, the second lens 320, the 3rd lens 330, the 4th lens 340, infrared ray filtering optical filter (IR Filter) 360, sheet glass 370 and imaging surface 350 as side by the thing side.
The material of first lens 310 is plastics, and it has positive refracting power, and the thing side surface 311 of first lens 310 and be all convex surface as side surface 312, and its thing side surface 311 and be all aspheric surface (Aspheric as side surface 312; Asp).
The material of the second lens 320 is plastics, and it has negative refracting power, and the thing side surface 321 of the second lens 320 is concave surface, is convex surface as side surface 322, and its thing side surface 321 and be all aspheric surface as side surface 322.
The material of the 3rd lens 330 is plastics, and it has positive refracting power, the thing side surface 331 of the 3rd lens 330 and be all convex surface as side surface 332, and its thing side surface 331 and be all aspheric surface as side surface 332.
The material of the 4th lens 340 is plastics, and it has negative refracting power, and the thing side surface 341 of the 4th lens 340 is convex surface, is concave surface as side surface 342, and its thing side surface 341 and be all aspheric surface as side surface 342.In addition, the 4th lens 340 have the point of inflexion.
After infrared ray filtering optical filter 360 and sheet glass 370 sequentially are arranged at the 4th lens 340, do not affect the focal length of optical camera lens group.
In embodiment 3, aspheric curvilinear equation formula represents the form as embodiment 1, is not therefore given unnecessary details at this.
In the optical camera lens group of embodiment 3, the focal length of whole optical camera lens group is f, and the f-number of whole optical camera lens group (f-number) is Fno, and in whole optical camera lens group, half of maximum visual angle is HFOV, and its relational expression is:
f＝3.08mm；
Fno＝2.85；
The HFOV=36.0 degree.
In the optical camera lens group of embodiment 3, the abbe number of first lens 310 (Abbe number) is V1, and the abbe number of the second lens 320 is V2, and its pass is:
V1-V2＝32.4。
In the optical camera lens group of embodiment 3, the thickness of the 3rd lens 330 on optical axis is CT3, and the pass of the focal distance f of itself and whole optical camera lens group is:
CT3/f＝0.22。
In the optical camera lens group of embodiment 3, first lens 310 and the distance of the second lens 320 on optical axis are T12, and the pass of the focal distance f of itself and whole optical camera lens group is:
T12/f＝0.19。
In the optical camera lens group of embodiment 3, thing side surface 311 radius-of-curvature of first lens 310 are R1, are R2 as side surface 312 radius-of-curvature, thing side surface 321 radius-of-curvature of the second lens 320 are R3, are R4 as side surface 322 radius-of-curvature, thing side surface 331 radius-of-curvature of the 3rd lens 330 are R5, are R6 as side surface 332 radius-of-curvature, thing side surface 341 radius-of-curvature of the 4th lens 340 are R7, are R8 as side surface 342 radius-of-curvature, and its pass is:
|R1/R2|＝0.09；
R5/R6＝-1.70；
(R3+R4)/(R3-R4)＝-2.43；
(R7+R8)/(R7-R8)＝8.13。
In the optical camera lens group of embodiment 3, the focal length of the second lens 320 is f2, and the focal length of the 4th lens 340 is f4, and the relation of the focal distance f of itself and whole optical camera lens group is respectively:
f/f2＝-1.15；
f/f4＝-0.17。
In the optical camera lens group of embodiment 3, aperture 300 is SL to the distance of imaging surface 350 on optical axis, and the thing side surface 311 of first lens 310 is TTL to the distance of imaging surface 350 on optical axis, and its pass is:
SL/TTL＝0.99。
In the optical camera lens group of embodiment 3, the optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface 350, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 311 to the pass that the distance of imaging surface 350 on optical axis is TTL of itself and first lens 310 is:
TTL/ImgH＝1.78。
Please coordinate with reference to table five, table six A and table six B, wherein table five is the detailed structured data of Fig. 5 embodiment 3, and table six A and table six B are the aspherical surface data in embodiment 3.
Table five
Asphericity coefficient
Table six A
Asphericity coefficient
Table six B
In table five, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents by the surface of thing side to the picture side, and in table six A and table six B, k represents the conical surface coefficient in the aspheric curve equation, and A1-A16 represents each surperficial 1-16 rank asphericity coefficient.
Please refer to Fig. 7 and 8, wherein Fig. 7 illustrates the schematic diagram according to a kind of optical camera lens group of the embodiment of the present invention 4, and Fig. 8 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 4 and distorts curve map.As shown in Figure 7, embodiment 4 optical camera lens groups extremely sequentially comprise first lens 410, aperture 400, the second lens 420, the 3rd lens 430, the 4th lens 440, infrared ray filtering optical filter (IR Filter) 460 and imaging surface 450 as side by the thing side.
The material of the first lens 410 of embodiment 4 is glass, and it has positive refracting power, and the thing side surface 411 of first lens 410 is convex surface, is concave surface as side surface 412.
The material of the second lens 420 is plastics, and it has negative refracting power, and the thing side surface 421 of the second lens 420 and, be all concave surface as side surface 422, and its thing side surface 421 and be all aspheric surface as side surface 422.
The material of the 3rd lens 430 is plastics, and it has positive refracting power, the thing side surface 431 of the 3rd lens 430 and be all convex surface as side surface 432, and its thing side surface 431 and be all aspheric surface as side surface 432.
The material of the 4th lens 440 is plastics, and it has positive refracting power, and the thing side surface 441 of the 4th lens 440 is convex surface, is concave surface as side surface 442, and its thing side surface 441 and be all aspheric surface as side surface 442.
After infrared ray filtering optical filter 460 is arranged at the 4th lens 440, do not affect the focal length of optical camera lens group.
In embodiment 4, aspheric curvilinear equation formula represents the form as embodiment 1.
In the optical camera lens group of embodiment 4, the focal length of whole optical camera lens group is f, and the f-number of whole optical camera lens group (f-number) is Fno, and in whole optical camera lens group, half of maximum visual angle is HFOV, and its relational expression is:
f＝4.88mm；
Fno＝3.50；
The HFOV=31.0 degree.
In the optical camera lens group of embodiment 4, the abbe number of first lens 410 (Abbe number) is V1, and the abbe number of the second lens 420 is V2, and its pass is:
V1-V2＝13.9。
In the optical camera lens group of embodiment 4, the thickness of the 3rd lens 430 on optical axis is CT3, and the pass of the focal distance f of itself and whole optical camera lens group is:
CT3/f＝0.18。
In the optical camera lens group of embodiment 4, first lens 410 and the distance of the second lens 420 on optical axis are T12, and the pass of the focal distance f of itself and whole optical camera lens group is:
T12/f＝0.06。
In the optical camera lens group of embodiment 4, thing side surface 411 radius-of-curvature of first lens 410 are R1, are R2 as side surface 412 radius-of-curvature, thing side surface 421 radius-of-curvature of the second lens 420 are R3, are R4 as side surface 422 radius-of-curvature, thing side surface 431 radius-of-curvature of the 3rd lens 430 are R5, are R6 as side surface 432 radius-of-curvature, thing side surface 441 radius-of-curvature of the 4th lens 440 are R7, are R8 as side surface 442 radius-of-curvature, and its pass is:
|R1/R2|＝0.57；
R5/R6＝-2.48；
(R3+R4)/(R3-R4)＝0.04；
(R7+R8)/(R7-R8)＝75.07。
In optical camera lens group in embodiment 4, the focal length of the second lens 420 is f2, and the focal length of the 4th lens 440 is f4, and the relation of the focal distance f of itself and whole optical camera lens group is respectively:
f/f2＝-1.40；
f/f4＝0.15。
In the optical camera lens group of embodiment 4, aperture 400 is SL to the distance of imaging surface 450 on optical axis, and the thing side surface 411 of first lens 410 is TTL to the distance of imaging surface 450 on optical axis, and its pass is:
SL/TTL＝0.87。
In the optical camera lens group of embodiment 4, the optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface 450, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 411 to the pass that the distance of imaging surface 450 on optical axis is TTL of itself and first lens 410 is:
TTL/ImgH＝2.19。
Please coordinate with reference to table seven, table eight, wherein table seven is the detailed structured data of Fig. 7 embodiment 4, and table eight is the aspherical surface data in embodiment 4.
Table seven
Asphericity coefficient
Table eight
In table seven, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 sequentially represents by the surface of thing side to the picture side.And in table eight, k represents the conical surface coefficient in the aspheric curve equation, and A1-A16 represents each surperficial 1-16 rank asphericity coefficient.
Please refer to Fig. 9 and 10, wherein Fig. 9 illustrates the schematic diagram according to a kind of optical camera lens group of the embodiment of the present invention 5, and Figure 10 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 5 and distorts curve map.As shown in Figure 9, the optical camera lens group of embodiment 5 extremely sequentially comprises aperture 500, first lens 510, the second lens 520, the 3rd lens 530, the 4th lens 540, infrared ray filtering optical filter (IR Filter) 560 and imaging surface 550 as side by the thing side.
The material of first lens 510 is plastics, and it has positive refracting power, and the thing side surface 511 of first lens 510 is convex surface, is concave surface as side surface 512, and its thing side surface 511 and be all aspheric surface (Aspheric as side surface 512; Asp).
The material of the second lens 520 is plastics, and it has negative refracting power, and the thing side surface 521 of the second lens 520 is concave surface, is convex surface as side surface 522, and its thing side surface 521 and be all aspheric surface as side surface 522.
The material of the 3rd lens 530 is plastics, and it has positive refracting power, the thing side surface 531 of the 3rd lens 530 and be all convex surface as side surface 532, and its thing side surface 531 and be all aspheric surface as side surface 532.
The material of the 4th lens 540 is plastics, and it has negative refracting power, and the thing side surface 541 of the 4th lens 540 is convex surface, is concave surface as side surface 542, and its thing side surface 541 and be all aspheric surface as side surface 542.In addition, the 4th lens 540 have the point of inflexion.
After infrared ray filtering optical filter 560 is arranged at the 4th lens 540, do not affect the focal length of optical camera lens group.
In embodiment 5, aspheric curvilinear equation formula represents the form as embodiment 1.
In the optical camera lens group of embodiment 5, the focal length of whole optical camera lens group is f, and the f-number of whole optical camera lens group (f-number) is Fno, and in whole optical camera lens group, half of maximum visual angle is HFOV, and its relational expression is:
f＝3.11mm；
Fno＝2.80；
The HFOV=35.8 degree.
In the optical camera lens group of embodiment 5, the abbe number of first lens 510 (Abbe number) is V1, and the abbe number of the second lens 520 is V2, and its pass is:
V1-V2＝34.4。
In the optical camera lens group of embodiment 5, the thickness of the 3rd lens 530 on optical axis is CT3, and the pass of the focal distance f of itself and whole optical camera lens group is:
CT3/f＝0.25。
In the optical camera lens group of embodiment 5, first lens 510 and the distance of the second lens 520 on optical axis are T12, and the pass of the focal distance f of itself and whole optical camera lens group is:
T12/f＝0.18。
In the optical camera lens group of embodiment 5, thing side surface 511 radius-of-curvature of first lens 510 are R1, are R2 as side surface 512 radius-of-curvature, thing side surface 521 radius-of-curvature of the second lens 520 are R3, are R4 as side surface 522 radius-of-curvature, thing side surface 531 radius-of-curvature of the 3rd lens 530 are R5, are R6 as side surface 532 radius-of-curvature, thing side surface 541 radius-of-curvature of the 4th lens 540 are R7, are R8 as side surface 542 radius-of-curvature, and its pass is:
|R1/R2|＝0.04；
R5/R6＝-1.67；
(R3+R4)/(R3-R4)＝-2.88；
(R7+R8)/(R7-R8)＝5.35。
In the optical camera lens group of embodiment 5, the focal length of the second lens 520 is f2, and the focal length of the 4th lens 540 is f4, and the relation of the focal distance f of itself and whole optical camera lens group is respectively:
f/f2＝-1.00；
f/f4＝-0.43。
In the optical camera lens group of embodiment 5, aperture 500 is SL to the distance of imaging surface 550 on optical axis, and the thing side surface 511 of first lens 510 is TTL to the distance of imaging surface 550 on optical axis, and its pass is:
SL/TTL＝0.98。
In the optical camera lens group of embodiment 5, the optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface 550, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 511 to the pass that the distance of imaging surface 550 on optical axis is TTL of itself and first lens 510 is:
TTL/ImgH＝1.82。
Please coordinate with reference to table nine, table ten A and table ten B, wherein table nine is the detailed structured data of Fig. 9 embodiment 5, and table ten A and table ten B are the aspherical surface data in embodiment 5.
Table nine
Asphericity coefficient
Table ten A
Asphericity coefficient
Table ten B
In table nine, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 sequentially represents by the surface of thing side to the picture side.And in table ten A and table ten B, k represents the conical surface coefficient in the aspheric curve equation, and A1-A16 represents each surperficial 1-16 rank asphericity coefficient.
Please refer to Figure 11 and 12, wherein Figure 11 illustrates the schematic diagram according to a kind of optical camera lens group of the embodiment of the present invention 6, and Figure 12 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical camera lens group of optical camera lens group embodiment 6 and distorts curve map.As shown in Figure 11, the optical camera lens group of embodiment 6 extremely sequentially comprises aperture 600, first lens 610, the second lens 620, the 3rd lens 630, the 4th lens 640, infrared ray filtering optical filter (IR Filter) 660, sheet glass 670 and imaging surface 650 as side by the thing side.
The material of first lens 610 is plastics, and it has positive refracting power, and the thing side surface 611 of first lens 610 and be all convex surface as side surface 612, and its thing side surface 611 and be all aspheric surface (Aspheric as side surface 612; Asp).
The material of the second lens 620 is plastics, and it has negative refracting power, and the thing side surface 621 of the second lens 620 is concave surface, is convex surface as side surface 622, and its thing side surface 621 and be all aspheric surface as side surface 622.
The material of the 3rd lens 630 is plastics, and it has positive refracting power, the thing side surface 631 of the 3rd lens 630 and be all convex surface as side surface 632, and its thing side surface 631 and be all aspheric surface as side surface 632.
The material of the 4th lens 640 is plastics, and it has positive refracting power, and the thing side surface 641 of the 4th lens 640 is convex surface, is concave surface as side surface 642, and its thing side surface 641 and be all aspheric surface as side surface 642.In addition, the 4th lens 640 have the point of inflexion.
After infrared ray filtering optical filter 660 and sheet glass 670 sequentially are arranged at the 4th lens 640, do not affect the focal length of optical camera lens group.
In embodiment 6, aspheric curvilinear equation formula represents the form as embodiment 1.
In the optical camera lens group of embodiment 6, the focal length of whole optical camera lens group is f, and the f-number of whole optical camera lens group (f-number) is Fno, and in whole optical camera lens group, half of maximum visual angle is HFOV, and its relational expression is:
f＝3.34mm；
Fno＝2.86；
The HFOV=34.7 degree.
In the optical camera lens group of embodiment 6, the abbe number of first lens 610 (Abbe number) is V1, and the abbe number of the second lens 620 is V2, and its pass is:
V1-V2＝32.7。
In the optical camera lens group of embodiment 6, the thickness of the 3rd lens 630 on optical axis is CT3, and the pass of the focal distance f of itself and whole optical camera lens group is:
CT3/f＝0.15。
In the optical camera lens group of embodiment 6, first lens 610 and the distance of the second lens 620 on optical axis are T12, and the pass of the focal distance f of itself and whole optical camera lens group is:
T12/f＝0.17。
In the optical camera lens group of embodiment 6, thing side surface 611 radius-of-curvature of first lens 610 are R1, are R2 as side surface 612 radius-of-curvature, thing side surface 621 radius-of-curvature of the second lens 620 are R3, are R4 as side surface 622 radius-of-curvature, thing side surface 631 radius-of-curvature of the 3rd lens 630 are R5, are R6 as side surface 632 radius-of-curvature, thing side surface 641 radius-of-curvature of the 4th lens 640 are R7, are R8 as side surface 642 radius-of-curvature, and its pass is:
|R1/R2|＝0.08；
R5/R6＝-0.31；
(R3+R4)/(R3-R4)＝-2.63；
(R7+R8)/(R7-R8)＝23.11。
In optical camera lens group in embodiment 6, the focal length of the second lens 620 is f2, and the focal length of the 4th lens 640 is f4, and the relation of the focal distance f of itself and whole optical camera lens group is respectively:
f/f2＝-1.14；
f/f4＝0.16。
In the optical camera lens group of embodiment 6, aperture 600 is SL to the distance of imaging surface 650 on optical axis, and the thing side surface 611 of first lens 610 is TTL to the distance of imaging surface 650 on optical axis, and its pass is:
SL/TTL＝0.99。
In the optical camera lens group of embodiment 6, the optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface 650, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 611 to the pass that the distance of imaging surface 650 on optical axis is TTL of itself and first lens 610 is:
TTL/ImgH＝1.89。
Please coordinate with reference to table ten one, table ten two A and table ten two B, wherein table ten one is the detailed structured data of Figure 11 embodiment 6, and table ten two A and table ten two B are the aspherical surface data in embodiment 6.
Table ten one
Asphericity coefficient
Table ten two A
Asphericity coefficient
Table ten two B
In table ten one, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents by the surface of thing side to the picture side.And in table ten two A and table ten two B, k represents the conical surface coefficient in the aspheric curve equation, and A1-A16 represents each surperficial 1-16 rank asphericity coefficient.
| |
|
Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| f | 3.30 | 3.06 | 3.08 | 4.88 | 3.11 | 3.34 |
| Fno | 2.85 | 3.00 | 2.85 | 3.50 | 2.80 | 2.86 |
| HFOV | 34.0 | 36.2 | 36.0 | 31.0 | 35.8 | 34.7 |
| V1-V2 | 32.4 | 34.5 | 32.4 | 13.9 | 34.4 | 32.7 |
| CT3/f | 0.22 | 0.25 | 0.22 | 0.18 | 0.25 | 0.15 |
| T12/f | 0.19 | 0.20 | 0.19 | 0.06 | 0.18 | 0.17 |
| |R1/R2| | 0.03 | 0.08 | 0.09 | 0.57 | 0.04 | 0.08 |
| R5/R6 | -1.20 | -1.71 | -1.70 | -248 | -1.67 | -0.31 |
| (R3+R4)/(R3-R4) | -3.01 | -2.89 | -2.43 | 0.04 | -2.88 | -2.63 |
| (R7+R8)/(R7-R8) | 7.06 | 5.49 | 8.13 | 75.07 | 5.35 | 23.11 |
| f/f2 | -1.02 | -0.98 | -1.15 | -1.40 | -1.00 | -1.14 |
| f/f4 | -0.29 | -0.41 | -0.17 | 0.15 | -0.43 | 0.16 |
| SL/TTL | 0.98 | 0.88 | 0.99 | 0.87 | 0.98 | 0.99 |
| TTL/ImgH | 1.83 | 1.81 | 1.78 | 2.19 | 1.82 | 1.89 |
Table ten three
Table one to table ten two is depicted as the different numerical value change tables of optical camera lens group embodiment of the present invention, all true gained of testing of numerical value change of right each embodiment of the present invention, even use different numerical value, the product of same structure must belong to protection category of the present invention.Table ten three is the numeric data of the corresponding correlated condition formula of the present invention of each embodiment.In sum, but optical camera lens group reduced volume provided by the invention increases the field angle of whole optical camera lens group, obtains higher resolving power.
Although the present invention discloses as above with embodiment; so it is not to limit the present invention; anyly be familiar with this skill person; without departing from the spirit and scope of the present invention; when can be used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking the scope that appending claims defines.
Claims (21)
1. an optical camera lens group, is characterized in that, extremely sequentially comprised as side by the thing side:
One first lens has positive refracting power, and its thing side surface is convex surface;
One second lens have negative refracting power, and its thing side surface is concave surface, is convex surface as side surface;
One the 3rd lens have positive refracting power, its thing side surface and be all convex surface as side surface; And
One the 4th lens, its thing side surface are convex surface, are concave surface as side surface, and its thing side surface and be all aspheric surface as side surface;
Wherein, in this optical camera lens group, the lens of tool refracting power are four, the thing side surface radius-of-curvature of these the second lens is R3, is R4 as the side surface radius-of-curvature, the thing side surface radius-of-curvature of this first lens is R1, is R2 as the side surface radius-of-curvature, and this optical camera lens group comprises an aperture, the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, satisfies following relationship:
-5.0<(R3+R4)/(R3-R4)<-2.3；
| R1/R2|＜0.5; And
0.80<SL/TTL<1.20。
2. optical camera lens group according to claim 1, is characterized in that, the 4th lens have the point of inflexion, and be plastic material.
3. optical camera lens group according to claim 2, is characterized in that, the 4th lens have negative refracting power.
4. optical camera lens group according to claim 3, is characterized in that, this first lens and the distance of these the second lens on optical axis are T12, and the focal length of this optical camera lens group is f, and satisfy following relationship:
0.13<T12/f<0.27。
5. optical camera lens group according to claim 4, is characterized in that, the thing side surface radius-of-curvature of these the second lens is R3, is R4 as the side surface radius-of-curvature, satisfies following relationship:
-3.5<(R3+R4)/(R3-R4)<-2.3。
6. optical camera lens group according to claim 4, is characterized in that, the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, and satisfies following relationship:
0.92<SL/TTL<1.10。
7. optical camera lens group according to claim 6, is characterized in that, the thing side surface radius-of-curvature of the 3rd lens is R5, is R6 as the side surface radius-of-curvature, and satisfies following relationship:
-2.7<R5/R6<-0.9。
8. optical camera lens group according to claim 6, is characterized in that, the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, and satisfy following relationship:
28.0<V1-V2<42.0。
9. optical camera lens group according to claim 8, is characterized in that, the thing side surface radius-of-curvature of the 4th lens is R7, is R8 as the side surface radius-of-curvature, and satisfies following relationship:
3.0<(R7+R8)/(R7-R8)<25.0。
10. optical camera lens group according to claim 6, is characterized in that, the focal length of this optical camera lens group is f, and the focal length of the 4th lens is f4, and satisfies following relationship:
-0.7<f/f4<0.0。
11. optical camera lens group according to claim 10 is characterized in that, the thing side surface radius-of-curvature of this first lens is R1, is R2 as the side surface radius-of-curvature, satisfies following relationship:
|R1/R2|<0.2。
12. optical camera lens group according to claim 5 is characterized in that, the thickness of the 3rd lens on optical axis is CT3, and the focal length of this optical camera lens group is f, and satisfies following relationship:
0.07<CT3/f<0.28。
13. optical camera lens group according to claim 4 is characterized in that, the focal length of this optical camera lens group is f, and the focal length of these the second lens is f2, and satisfies following relationship:
-1.3<f/f2<-0.9。
14. optical camera lens group according to claim 1, it is characterized in that, the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, this optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and satisfies following relationship:
TTL/ImgH<1.95。
15. an optical camera lens group is characterized in that, is extremely sequentially comprised as side by the thing side:
One first lens has positive refracting power, and its thing side surface is convex surface;
One second lens have negative refracting power, and its thing side surface is concave surface;
One the 3rd lens have positive refracting power, its thing side surface and be all convex surface as side surface; And
One the 4th lens, it is concave surface as side surface, and has the point of inflexion;
wherein, in this optical camera lens group, the lens of tool refracting power are four, the thing side surface radius-of-curvature of the 3rd lens is R5, be R6 as the side surface radius-of-curvature, this first lens and the distance of these the second lens on optical axis are T12, the focal length of this optical camera lens group is f, the thickness of the 3rd lens on optical axis is CT3, and this optical camera lens group comprises an aperture, the distance of this aperture to one imaging surface on optical axis is SL, the thing side surface of this first lens to the distance of this imaging surface on an optical axis is TTL, the thing side surface radius-of-curvature of these the second lens is R3, be R4 as the side surface radius-of-curvature, satisfy following relationship:
-2.7<R5/R6<-0.9；
0.13<T12/f<0.27；
0.07<CT3/f<0.28；
0.92＜SL/TTL＜1.10; And
-5.0<(R3+R4)/(R3-R4)<-2.3。
16. optical camera lens group according to claim 15 is characterized in that the 3rd lens have at least one non-spherical surface, and the 4th lens are plastic material.
17. optical camera lens group according to claim 16 is characterized in that, these the second lens be convex surface as side surface.
18. optical camera lens group according to claim 17 is characterized in that, the thing side surface of the 4th lens is convex surface, and the focal length of this optical camera lens group is f, and the focal length of the 4th lens is f4, and satisfies following relationship:
-0.7<f/f4<0.0。
19. optical camera lens group according to claim 18 is characterized in that, the thing side surface radius-of-curvature of this first lens is R1, is R2 as the side surface radius-of-curvature, and satisfies following relationship:
|R1/R2|<0.2。
20. optical camera lens group according to claim 17 is characterized in that, the focal length of this optical camera lens group is f, and the focal length of these the second lens is f2, and satisfies following relationship:
-1.3<f/f2<-0.9。
21. optical camera lens group according to claim 16, it is characterized in that, the thing side surface of this first lens to the distance of this imaging surface on an optical axis is TTL, this optical camera lens group separately is provided with a sense electronics optical assembly in imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and satisfies following relationship:
TTL/ImgH<1.95。
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| CN103185958B (en) * | 2012-12-28 | 2015-05-20 | 玉晶光电(厦门)有限公司 | Portable electronic device and optical imaging lens thereof |
| TWI471588B (en) | 2012-12-28 | 2015-02-01 | 玉晶光電股份有限公司 | Mobile device and optical imaging lens thereof |
| CN106980172B (en) * | 2016-01-15 | 2019-07-09 | 新巨科技股份有限公司 | Wide-angle image lens set |
| CN107238911B (en) * | 2017-08-07 | 2022-08-09 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN109116514B (en) * | 2018-09-04 | 2024-10-15 | 辽宁中蓝光电科技有限公司 | Iris recognition lens with large view field angle |
| CN110542992B (en) * | 2019-09-06 | 2024-06-11 | 浙江舜宇光学有限公司 | Optical imaging system |
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| CN1940628A (en) * | 2005-09-29 | 2007-04-04 | 富士能株式会社 | Image-forming lens |
| CN101256263A (en) * | 2007-01-30 | 2008-09-03 | 富士能株式会社 | Imaging lens |
| CN201845122U (en) * | 2010-11-17 | 2011-05-25 | 大立光电股份有限公司 | Optical camera lens group |
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| JP2005208236A (en) * | 2004-01-21 | 2005-08-04 | Sony Corp | Single focal lens |
| JP2006126494A (en) * | 2004-10-28 | 2006-05-18 | Sony Corp | Imaging lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1940628A (en) * | 2005-09-29 | 2007-04-04 | 富士能株式会社 | Image-forming lens |
| CN101256263A (en) * | 2007-01-30 | 2008-09-03 | 富士能株式会社 | Imaging lens |
| CN201845122U (en) * | 2010-11-17 | 2011-05-25 | 大立光电股份有限公司 | Optical camera lens group |
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