CN105445915A - Camera lens - Google Patents

Abstract

The invention discloses a camera lens, and the lens sequentially comprises from an object side to an image side a first lens with the positive refraction power; a second lens with the negative refraction power, wherein the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a convex surface; a third lens with the positive refraction power; a fourth lens with the refraction power, wherein the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a convex surface; a fifth lens with the refraction power, wherein the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a convex surface; and a sixth lens with the negative refraction power. The number of lenses with the refraction power in the camera lens is six. The camera lens meets the conditions that the sum of an absolute value of f/f3 and an absolute value of f/f6 is less than 1.0, and TTL/ImgH is less than1.46, wherein f3 is the effective focal length of the third lens, f6 is the effective focal length of the sixth lens, f is the effective focal length of the camera lens, TTL is the axial distance from the object side surface of the first lens to an imaging surface, and ImgH is the half of the length of a diagonal line of an effective pixel region on the imaging surface. The camera lens can improve the imaging quality and maintains the miniaturization.

Description

Pick-up lens

Technical field

The present invention relates to a kind of camera technique field, particularly relate to a kind of pick-up lens.

Background technology

In recent years, along with the development of the chip technologies such as CCD or CMOS, making pick-up lens gradually toward high pixel and the development of miniaturization field, in order to meet this trend, miniaturization, high imaging performance also being required further for the pick-up lens be applied on portable type electronic product.

The pick-up lens of current main flow is generally made up of five lens, has been difficult to meet higher pixel and higher-quality parsing requirement, therefore certainly will will have increased lens numbers.But the increase of lens numbers is unfavorable for again miniaturization and the lightweight of camera lens.

Summary of the invention

The embodiment of the present invention is intended at least to solve one of technical matters existed in prior art.For this reason, the embodiment of the present invention needs to provide a kind of pick-up lens.

A kind of pick-up lens, is comprised to image side successively by thing side:

There are the first lens of positive refracting power;

Have the second lens of negative refracting power, the thing side of these the second lens is convex surface, and the face, image side of these the second lens is concave surface;

There are the 3rd lens of positive refracting power;

Have the 4th lens of refracting power, the thing side of the 4th lens is concave surface, and the face, image side of the 4th lens is convex surface;

Have the 5th lens of refracting power, the thing side of the 5th lens is convex surface, and the face, image side of the 5th lens is convex surface;

There are the 6th lens of negative refracting power;

The lens in this pick-up lens with refracting power add up to six;

This pick-up lens meets following relationship: | f/f3|+|f/f6|<1.0; TTL/ImgH<1.46;

Wherein, f3 is the effective focal length of the 3rd lens; F6 is the effective focal length of the 6th lens; F is the effective focal length of this pick-up lens; TTL is that the thing side of these the first lens is to distance on the axle of imaging surface; ImgH is the half of the diagonal line length of effective pixel area on this imaging surface.

Meet the pick-up lens of above-mentioned configuration, be conducive to improving spherical aberration, coma, improve image quality, meanwhile, its configuration closely, effectively can be reduced the volume of pick-up lens and shorten the total length of pick-up lens, maintaining miniaturization.

In one embodiment, this pick-up lens meets following relationship: 1.0<CT3/CT4<1.6;

Wherein, CT3 is the center thicknesses of the 3rd lens on optical axis; CT4 is the center thicknesses of the 4th lens on this optical axis.

In one embodiment, this pick-up lens meets following relationship :-2.1<f6/f<-1.5.

In one embodiment, this pick-up lens meets following relationship: f/EPD<2.1;

Wherein, EPD is the diameter of entrance pupil.

In one embodiment, the face, image side of the 6th lens is concave surface, and this pick-up lens meets following relationship :-0.5<R12/R10<0;

Wherein, R12 is the radius-of-curvature in the face, image side of the 6th lens; R10 is the radius-of-curvature in the face, image side of the 5th lens.

In one embodiment, this pick-up lens meets following relationship: 0.8<ImgH/f<1.0;

In one embodiment, this pick-up lens meets following relationship: 0.5<CT5/CT6<1.4;

Wherein, CT5 is the center thicknesses of the 5th lens on optical axis; CT6 is the center thicknesses of the 6th lens on this optical axis.

In one embodiment, this pick-up lens meets following relationship :-1<f12/f6<-0.5;

Wherein, f12 is the combined focal length of these first lens and these the second lens.

In one embodiment, this pick-up lens meets following relationship: 0.8<DT11/DT32<1.2;

Wherein, DT11 is the effective radius of the thing side of these the first lens; DT32 is the effective radius in the face, image side of the 3rd lens.

In one embodiment, this pick-up lens meets following relationship: 0.35<DT11/DT62<0.5;

Wherein, DT11 is the effective radius of the thing side of these the first lens; DT62 is the effective radius in the face, image side of the 6th lens.

The additional aspect of the embodiment of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by the practice of the embodiment of the present invention.

Accompanying drawing explanation

Above-mentioned and/or the additional aspect of the embodiment of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:

Fig. 1 is the structural representation of the pick-up lens of embodiment 1;

Fig. 2 be the pick-up lens of embodiment 1 axle on chromaticity difference diagram (mm); Fig. 3 is the astigmatism figure (mm) of the pick-up lens of embodiment 1; Fig. 4 is the distortion figure (%) of the pick-up lens of embodiment 1; Fig. 5 is the ratio chromatism, figure (um) of the pick-up lens of embodiment 1;

Fig. 6 is the structural representation of the pick-up lens of embodiment 2;

Fig. 7 be the pick-up lens of embodiment 2 axle on chromaticity difference diagram (mm); Fig. 8 is the astigmatism figure (mm) of the pick-up lens of embodiment 2; Fig. 9 is the distortion figure (%) of the pick-up lens of embodiment 2; Figure 10 is the ratio chromatism, figure (um) of the pick-up lens of embodiment 2;

Figure 11 is the structural representation of the pick-up lens of embodiment 3;

Figure 12 be the pick-up lens of embodiment 3 axle on chromaticity difference diagram (mm); Figure 13 is the astigmatism figure (mm) of the pick-up lens of embodiment 3; Figure 14 is the distortion figure (%) of the pick-up lens of embodiment 3; Figure 15 is the ratio chromatism, figure (um) of the pick-up lens of embodiment 3;

Figure 16 is the structural representation of the pick-up lens of embodiment 4;

Figure 17 be the pick-up lens of embodiment 4 axle on chromaticity difference diagram (mm); Figure 18 is the astigmatism figure (mm) of the pick-up lens of embodiment 4; Figure 19 is the distortion figure (%) of the pick-up lens of embodiment 4; Figure 20 is the ratio chromatism, figure (um) of the pick-up lens of embodiment 4;

Figure 21 is the structural representation of the pick-up lens of embodiment 5;

Figure 22 be the pick-up lens of embodiment 5 axle on chromaticity difference diagram (mm); Figure 23 is the astigmatism figure (mm) of the pick-up lens of embodiment 5; Figure 24 is the distortion figure (%) of the pick-up lens of embodiment 5; Figure 25 is the ratio chromatism, figure (um) of the pick-up lens of embodiment 5;

Figure 26 is the structural representation of the pick-up lens of embodiment 6;

Figure 27 be the pick-up lens of embodiment 6 axle on chromaticity difference diagram (mm); Figure 28 is the astigmatism figure (mm) of the pick-up lens of embodiment 6; Figure 29 is the distortion figure (%) of the pick-up lens of embodiment 6; Figure 30 is the ratio chromatism, figure (um) of the pick-up lens of embodiment 6.

Figure 31 is the structural representation of the pick-up lens of embodiment 7;

Figure 32 be the pick-up lens of embodiment 7 axle on chromaticity difference diagram (mm); Figure 33 is the astigmatism figure (mm) of the pick-up lens of embodiment 7; Figure 34 is the distortion figure (%) of the pick-up lens of embodiment 7; Figure 35 is the ratio chromatism, figure (um) of the pick-up lens of embodiment 7.

Embodiment

Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.

In describing the invention, it is to be appreciated that term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more described features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.

In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrically connected or can intercom mutually; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.

Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or reference letter, this repetition is to simplify and clearly object, itself does not indicate discussed various embodiment and/or relation between setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the application of other techniques and/or the use of other materials.

Refer to Fig. 1, a kind of pick-up lens of present pre-ferred embodiments, is comprised to image side successively by thing side:

There is the first lens L1 of positive refracting power;

Have the second lens L2 of negative refracting power, the thing side S3 of these second lens L2 is convex surface, and face, the image side S4 of these second lens L2 is concave surface;

There is the 3rd lens L3 of positive refracting power;

Have the 4th lens L4 of refracting power, the thing side S7 of the 4th lens L4 is concave surface, and face, the image side S8 of the 4th lens L4 is convex surface;

Have the 5th lens L5 of refracting power, the thing side S9 of the 5th lens L5 is convex surface, and face, the image side S10 of the 5th lens L5 is convex surface;

There is the 6th lens L6 of negative refracting power;

The lens in this pick-up lens with refracting power add up to six;

This pick-up lens meets following relationship: | f/f3|+|f/f6|<1.0; TTL/ImgH<1.46;

Wherein, f3 is the effective focal length of the 3rd lens L3; F6 is the effective focal length of the 6th lens L6; F is the effective focal length of this pick-up lens; TTL be the thing side S1 to imaging surface S15 of these first lens L1 axle on distance; ImgH is the half of the diagonal line length of effective pixel area on this imaging surface S15.

Meet the pick-up lens of above-mentioned configuration, be conducive to improving spherical aberration, coma, improve image quality, meanwhile, its configuration closely, effectively can be reduced the volume of pick-up lens and shorten the total length of pick-up lens, maintaining miniaturization.

Preferably, this pick-up lens meets following relationship:

1.0<CT3/CT4<1.6；

Wherein, CT3 is the center thickness of the 3rd lens L3 on optical axis; CT4 is the center thickness of the 4th lens L4 on optical axis.

The pick-up lens meeting above-mentioned configuration is conducive to the center thickness of reasonable disposition the 3rd lens and the 4th lens, is easy to lens assembling, reduces the susceptibility of camera lens.

Preferably, this pick-up lens meets following relationship:

-2.1<f6/f<-1.5。

The pick-up lens meeting above-mentioned configuration can make the light angle of pick-up lens mild effectively, reduces tolerance sensitivities.

Preferably, this pick-up lens meets following relationship:

f/EPD<2.1；

Wherein, EPD is the diameter of entrance pupil.

The pick-up lens meeting above-mentioned configuration can be beneficial to pick-up lens and also can obtain preferably image quality when more dim illumination is taken, and is conducive to virtualization background, to highlight theme.

Preferably, face, the image side S11 of the 6th lens L6 is concave surface, and this pick-up lens meets following relationship:

-0.5<R12/R10<0；

Wherein, R12 is the radius-of-curvature of face, the image side S12 of the 6th lens L6; R10 is the radius-of-curvature of face, the image side S10 of the 5th lens L5.

The pick-up lens meeting above-mentioned configuration is conducive to adjusting the incident angle that each visual field is incident in photo-sensitive cell, effectively avoids total reflection.

Preferably, this pick-up lens meets following relationship:

0.8<ImgH/f<1.0；

Wherein, ImgH is the half of the diagonal line length of effective pixel area on imaging surface S15.

The pick-up lens meeting above-mentioned configuration is conducive to the field angle improving pick-up lens, ensures the miniaturization of pick-up lens while meeting Large visual angle angle.

Preferably, this pick-up lens meets following relationship:

0.5<CT5/CT6<1.4；

Wherein, CT5 is the center thickness of the 5th lens L5 on optical axis; CT6 is the center thickness of the 6th lens L6 on optical axis.

The pick-up lens meeting above-mentioned configuration is conducive to the center thickness of reasonable disposition the 5th lens L5 and the 6th lens L6, ensures the miniaturization of pick-up lens further.

Preferably, this pick-up lens meets following relationship:

-1<f12/f6<-0.5；

Wherein, f12 is the combined focal length of these first lens L1 and these second lens L2.

The pick-up lens meeting above-mentioned configuration is conducive to the focal power of reasonable distribution system, and effective update the system spherical aberration, promotes image quality further.

Preferably, this pick-up lens meets following relationship:

0.8<DT11/DT32<1.2；

Wherein, DT11 is the effective radius of the thing side S1 of these first lens L1; DT32 is the effective radius of face, the image side S6 of the 3rd lens L3.

The pick-up lens meeting above-mentioned configuration is conducive to the size configuring pick-up lens front end, effectively controls the size of pick-up lens front end.

Preferably, this pick-up lens meets following relationship:

0.35<DT11/DT62<0.5；

Wherein, DT11 is the effective radius of the thing side S1 of these first lens L1; DT62 is the effective radius of face, the image side S12 of the 6th lens L6.

The pick-up lens meeting above-mentioned configuration is conducive to the field angle configuring pick-up lens rear end, and the light entered through pick-up lens is imaged on imaging surface S15 more.

During imaging, light images in imaging surface S15 through after six-element lens after having the optical filter L7 of thing side surface S13 and surface, image side S14.

In certain embodiments, the first lens L1, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5 and the 6th lens L6 are non-spherical lens.

Aspheric shape is determined by following formula:

$x=\frac{{\mathrm{ch}}^2}{1+\sqrt{1-(k+1)c^2{h}^2}}+{\mathrm{\&Sigma;Aih}}^i$

Wherein, h is that in aspheric surface, arbitrary point is to the height of optical axis, and c is vertex curvature, and k is conic constants, and Ai is the correction factor on aspheric surface i-th-th rank.

Embodiment 1:

Incorporated by reference to Fig. 1 ~ Fig. 5, in embodiment 1, pick-up lens meets the condition of table 1, table 2 and table 3 below:

Table 1

Face number	Surface type	Radius-of-curvature	Thickness	Refractive index/Abbe number	Circular cone coefficient
						OBJ	Sphere	Infinite	Infinite	--	--
STO	Sphere	Infinite	-0.2920	--	--
						S1	Aspheric surface	1.3021	0.5115	1.544/56.11	-0.8486
S2	Aspheric surface	4.4009	0.0614	--	0.3178 5 -->
						S3	Aspheric surface	3.2359	0.2106	1.651/21.52	-0.3361
S4	Aspheric surface	2.0787	0.2473	--	0.2989
						S5	Aspheric surface	14.5996	0.3964	1.535/55.80	-0.9990
S6	Aspheric surface	-7.8561	0.2996	--	-1.0001
						S7	Sphere	-1.5506	0.3000	1.651/21.52	--
S8	Aspheric surface	-1.6130	0.1000	--	-1.6410
						S9	Aspheric surface	7193.0239	0.4356	1.535/55.80	14.5392
S10	Aspheric surface	-18748.3936	0.2159	--	0.2986
						S11	Aspheric surface	2.2799	0.4840	1.535/55.80	-0.8548
S12	Aspheric surface	1.2688	0.6112	--	-1.0017
						S13	Sphere	Infinite	0.2100	1.517/64.17	--
S14	Sphere	Infinite	0.1965	--	--
						S15	Sphere	Infinite	--	--	--

Table 2

Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:

Face number

A4

A6

A8

A10

A12

A14

A16

S1

3.4250E-02

1.4834E-01

-5.6016E-01

1.5486E+00

-2.5668E+00

2.3559E+00

-9.5992E-01

S2

-3.3186E-01

6.4105E-01

-2.0640E-01

-1.5052E+00

2.8125E+00

-2.1104E+00

5.3960E-01

S3

-5.8754E-01

1.7729E+00

-3.8744E+00

7.8446E+00

-1.2598E+01

1.2144E+01

-4.9054E+00

S4

-3.2201E-01

1.0568E+00

-2.1018E+00

3.7494E+00

-4.2912E+00

1.4953E+00

1.4870E+00

S5

-1.0188E-01

-8.4824E-01

5.3322E+00

-1.9819E+01

4.2230E+01

-4.9349E+01

2.4620E+01

S6

-1.3336E-01

-8.6812E-02

5.2971E-01

-2.5723E+00

5.6198E+00

-6.1597E+00

2.7787E+00

S8

1.4710E-01

-7.0125E-01

1.4961E+00

-1.8699E+00

1.4794E+00

-6.5771E-01

1.2194E-01

S9

3.2880E-01

-1.1231E+00

1.7141E+00

-1.7047E+00

1.0405E+00

-3.7234E-01

6.0816E-02

S10

1.3456E-01

-3.5961E-01

3.3318E-01

-1.8108E-01

5.1068E-02

-5.4825E-03

-4.1879E-05

S11

-3.7787E-01

1.0708E-01

1.7796E-02

-1.6122E-02

3.6729E-03

-3.7327E-04

1.4376E-05

S12

-4.0662E-01

2.4987E-01

-1.2331E-01

4.1448E-02

-8.5508E-03

9.6034E-04

-4.4453E-05

Table 3

Embodiment 2:

Incorporated by reference to Fig. 6 ~ Figure 10, in example 2, pick-up lens meets the condition of table 4, table 5 and table 6 below:

Table 4

Face number	Surface type	Radius-of-curvature	Thickness	Refractive index/Abbe number	Circular cone coefficient
						OBJ	Sphere	Infinite	Infinite	--	--
STO	Sphere	Infinite	-0.3353	--	--
						S1	Aspheric surface	1.4123	0.6105	1.544/56.11	-0.8997
S2	Aspheric surface	3.9920	0.0440	--	-7.7479
						S3	Aspheric surface	5.0949	0.2481	1.651/21.52	-1.1097
S4	Aspheric surface	3.2053	0.2818	--	2.6346
						S5	Aspheric surface	10.2559	0.3565	1.544/56.11	4.1708
S6	Aspheric surface	-28.3342	0.3757	--	-96.4572
						S7	Aspheric surface	-1.8156	0.3000	1.651/21.52	0.3611
S8	Aspheric surface	-2.1878	0.0826	--	0.5552
						S9	Aspheric surface	6.8993	0.3764	1.535/55.80	13.5223
S10	Aspheric surface	-11430.5083	0.3253	--	-99.0000
						S11	Aspheric surface	3.1864	0.5881	1.535/55.80	-0.8281
S12	Aspheric surface	1.5123	0.5848	--	-0.9816
						S13	Sphere	Infinite	0.2100	1.517/64.17	--
S14	Sphere	Infinite	0.2462	--	--
						S15	Sphere	Infinite	--	--	--

Table 5

Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:

Face number

A4

A6

A8

A10

A12

A14

A16

S1

4.2203E-02

1.0848E-04

4.8889E-02

-1.0945E-01

9.9647E-02

-2.3302E-02

-3.1225E-02

S2

-2.4964E-01

-8.6055E-02

1.7946E+00

-4.2562E+00

4.8449E+00

-2.8840E+00

7.1662E-01

S3

-3.8075E-01

4.4123E-01

8.2156E-01

-2.9723E+00

3.8263E+00

-2.3886E+00

6.2284E-01

S4

-1.8659E-01

3.9275E-01

3.2835E-01

-2.8724E+00

6.4343E+00

-6.7982E+00

2.9717E+00

S5

-1.4686E-01

-2.1070E-01

1.2471E+00

-4.4210E+00

8.4831E+00

-8.6723E+00

3.7349E+00

S6

-6.2702E-02

-4.0870E-01

1.9945E+00

-5.6007E+00

8.4769E+00

-6.6680E+00

2.1619E+00

S7

-1.1001E-01

2.4252E-01

5.9004E-01

-3.2210E+00

5.2563E+00

-3.9106E+00

1.1153E+00

S8

-1.5563E-01

6.3162E-01

-1.2998E+00

1.5124E+00

-9.8906E-01

3.4243E-01

-4.8707E-02

S9

1.7902E-01

-2.7953E-01

1.2563E-01

-6.3353E-03

-2.1564E-02

9.0280E-03

-1.1164E-03

S10

2.4497E-01

-3.1694E-01

1.9375E-01

-7.6974E-02

1.8787E-02

-2.4763E-03

1.3404E-04

S11

-1.9862E-01

2.8221E-02

1.2248E-02

-5.0222E-03

7.5309E-04

-5.0903E-05

1.1673E-06

S12

-2.5658E-01

1.2613E-01

-5.4701E-02

1.6175E-02

-2.8603E-03

2.6935E-04

-1.0308E-05

Table 6

Embodiment 3:

Incorporated by reference to Figure 11 ~ Figure 15, in embodiment 3, pick-up lens meets the condition of table 7, table 8 and table 9 below:

Table 7

Face number	Surface type	Radius-of-curvature	Thickness	Refractive index/Abbe number	Circular cone coefficient
						OBJ	Sphere	Infinite	Infinite	--	--
STO	Sphere	Infinite	-0.3400	--	--
						S1	Aspheric surface	1.4931	0.5409	1.544/56.11	-0.7451
S2	Aspheric surface	4.0324	0.0670	--	-2.1710
						S3	Aspheric surface	3.7077	0.2450	1.651/21.52	-2.3129
S4	Aspheric surface	2.8470	0.2879	--	1.8927
						S5	Aspheric surface	Infinite	0.4779	1.535/55.80	-0.9990
S6	Aspheric surface	-6.7810	0.2975	--	-0.9885
						S7	Sphere	-1.9635	0.3194	1.651/21.52	--
S8	Aspheric surface	-1.8160	0.1028	--	-1.6148
						S9	Aspheric surface	95.3981	0.3423	1.535/55.80	14.5392
S10	Aspheric surface	-100000.0000	0.2156	--	0.2986
						S11	Aspheric surface	2.7131	0.6552	1.535/55.80	-0.7880
S12	Aspheric surface	1.4422	0.6666	--	-1.0118
						S13	Sphere	Infinite	0.2100	1.517/64.17	--
S14	Sphere	Infinite	0.1814	--	--
						S15	Sphere	Infinite	--	--	--

Table 8

Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:

Face number

A4

A6

A8

A10

A12

A14

A16

S1

2.2951E-02

8.2855E-02

-3.1270E-01

8.1101E-01

-1.1560E+00

8.6841E-01

-2.7210E-01

S2

-1.7347E-01

1.0049E-01

5.1497E-01

-1.7521E+00

2.6765E+00

-2.1128E+00

6.6494E-01

S3

-2.3676E-01

1.2513E-01

7.7977E-01

-2.3042E+00

3.2030E+00

-2.3792E+00

7.4085E-01

S4

-1.0586E-01

5.7835E-02

4.9044E-01

-1.3094E+00

1.8403E+00

-1.4925E+00

6.0254E-01

S5

-9.8775E-02

5.6216E-02

-4.5563E-01

1.2364E+00

-1.7122E+00

1.0143E+00

-8.6461E-02

S6

-5.9767E-02

-1.3632E-01

4.4899E-01

-1.1229E+00

1.5151E+00

-1.0731E+00

3.2692E-01

S8

5.3088E-02

-2.3106E-01

3.3497E-01

-2.2482E-01

9.0808E-02

-2.2691E-02

2.6098E-03

S9

2.7603E-01

-6.3657E-01

6.4361E-01

-3.9948E-01

1.4616E-01

-3.0054E-02

2.8176E-03

S10

2.1840E-01

-3.9561E-01

3.0791E-01

-1.4279E-01

3.7962E-02

-5.2041E-03

2.7761E-04

S11

-2.1583E-01

4.0407E-02

9.8793E-03

-5.3537E-03

9.3253E-04

-7.5451E-05

2.3862E-06

S12

-2.4248E-01

1.1106E-01

-3.9094E-02

9.1750E-03

-1.3307E-03

1.0623E-04

-3.5197E-06

Table 9

Embodiment 4:

Incorporated by reference to Figure 16 ~ Figure 20, in example 4, pick-up lens meets the condition of table 10, table 11 and table 12 below:

Table 10

Face number	Surface type	Radius-of-curvature	Thickness	Refractive index/Abbe number	Circular cone coefficient
						OBJ	Sphere	Infinite	Infinite	--	--
STO	Sphere	Infinite	-0.3400	--	--
						S1	Aspheric surface	1.4822	0.5447	1.544/56.11	-0.7680
S2	Aspheric surface	3.8180	0.0589	--	-3.1407
						S3	Aspheric surface	3.1806	0.2450	1.651/21.52	-1.8125
S4	Aspheric surface	2.5337	0.3205	--	2.6849
						S5	Aspheric surface	Infinite	0.4479	1.535/55.80	-0.9990
S6	Aspheric surface	-6.5948	0.3125	--	-0.9885
						S7	Sphere	-2.0045	0.3000	1.651/21.52	--
S8	Aspheric surface	-1.9365	0.0843	--	-1.5763
						S9	Aspheric surface	80.1659	0.3714	1.535/55.80	14.5392
S10	Aspheric surface	-100000.0000	0.1764	--	0.2986
						S11	Aspheric surface	2.6295	0.7031	1.535/55.80	-0.7574
S12	Aspheric surface	1.4691	0.6599	--	-1.0042
						S13	Sphere	Infinite	0.2100	1.517/64.17	--
S14	Sphere	Infinite	0.1748	--	--
						S15	Sphere	Infinite	--	--	--

Table 11

Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:

Face number

A4

A6

A8

A10

A12

A14

A16

S1

2.4042E-02

8.1348E-02

-2.8834E-01

7.0350E-01

-9.6476E-01

7.0663E-01

-2.2000E-01

S2

-1.7658E-01

8.8998E-02

5.4471E-01

-1.7234E+00

2.4692E+00

-1.8344E+00

5.4577E-01 9 -->

S3

-2.2106E-01

7.8530E-02

8.7271E-01

-2.4492E+00

3.3478E+00

-2.4291E+00

7.3075E-01

S4

-8.2506E-02

2.1468E-02

4.4448E-01

-9.2995E-01

9.8170E-01

-5.1555E-01

1.5461E-01

S5

-7.9513E-02

4.5783E-02

-4.7211E-01

1.3866E+00

-2.0633E+00

1.4219E+00

-2.8548E-01

S6

-4.0050E-02

-1.4978E-01

3.7228E-01

-8.3699E-01

1.0847E+00

-7.6455E-01

2.3593E-01

S8

3.0136E-02

-9.5960E-02

5.7084E-02

5.2205E-02

-5.8277E-02

1.9140E-02

-2.1934E-03

S9

2.3007E-01

-3.3411E-01

2.4178E-01

-1.2801E-01

4.4164E-02

-9.4484E-03

9.8646E-04

S10

1.0971E-01

-5.8114E-02

-2.7684E-02

3.3169E-02

-1.3595E-02

2.6489E-03

-2.0108E-04

S11

-2.7035E-01

1.0341E-01

-2.0924E-02

2.6013E-03

-2.1129E-04

1.1378E-05

-3.2689E-07

S12

-2.4615E-01

1.2082E-01

-4.8540E-02

1.2698E-02

-1.9484E-03

1.5784E-04

-5.1768E-06

Table 12

f1(mm)	4.10	f(mm)	3.76
				f2(mm)	-22.33	Fno	1.96
f3(mm)	12.29	TTL(mm)	4.61
				f4(mm)	31.64
f5(mm)	149.23
				f6(mm)	-7.87

Embodiment 5:

Incorporated by reference to Figure 21 ~ Figure 25, in embodiment 5, pick-up lens meets the condition of table 13, table 14 and table 15 below:

Table 13

Face number	Surface type	Radius-of-curvature	Thickness	Refractive index/Abbe number	Circular cone coefficient
						OBJ	Sphere	Infinite	Infinite	--	--
STO	Sphere	Infinite	-0.2920	--	--
						S1	Aspheric surface	1.5527	0.5756	1.544/56.11	-1.0062
S2	Aspheric surface	4.5314	0.0668	--	-3.3353
						S3	Aspheric surface	2.9058	0.2250	1.651/21.52	-0.4395
S4	Aspheric surface	2.1234	0.2999	--	0.4524
						S5	Aspheric surface	8.5458	0.4224	1.535/55.80	-0.9990
S6	Aspheric surface	-17.5072	0.2491	--	-1.0001
						S7	Aspheric surface	-2.5126	0.3000	1.651/21.52	-1.3193
S8	Aspheric surface	-2.9530	0.1352	--	-1.6211
						S9	Aspheric surface	12.0546	0.3758	1.535/55.80	14.5392
S10	Aspheric surface	-589.4029	0.3106	--	0.2986
						S11	Aspheric surface	2.4460	0.6983	1.535/55.80	-0.9205
S12	Aspheric surface	1.4092	0.6254	--	-1.0267
						S13	Sphere	Infinite	0.2100	1.517/64.17	--
S14	Sphere	Infinite	0.2358	--	--
						S15	Sphere	Infinite	--	--	--

Table 14

Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:

Table 15

f1(mm)	4.05	f(mm)	3.96
				f2(mm)	-13.56	Fno	1.96
f3(mm)	10.76	TTL(mm)	4.73
				f4(mm)	-35.17
f5(mm)	22.01
				f6(mm)	-8.10

Embodiment 6:

Incorporated by reference to Figure 26 ~ Figure 30, in embodiment 6, pick-up lens meets the condition of table 16, table 17 and table 18 below:

Table 16

Face number	Surface type	Radius-of-curvature	Thickness	Refractive index/Abbe number	Circular cone coefficient
						OBJ	Sphere	Infinite	Infinite	--	--
STO	Sphere	Infinite	-0.2920	--	--
						S1	Aspheric surface	1.5345	0.5716	1.544/56.11	-1.0362
S2	Aspheric surface	4.4655	0.0601	--	-6.0966
						S3	Aspheric surface	3.1223	0.2250	1.651/21.52	-0.4078
S4	Aspheric surface	2.2442	0.2865	--	0.6635
						S5	Aspheric surface	7.7578	0.4492	1.535/55.80	-0.7829
S6	Aspheric surface	-25.1018	0.2061	--	-1.0001
						S7	Aspheric surface	-3.1544	0.3031	1.651/21.52	-0.1029
S8	Aspheric surface	-3.6262	0.1739	--	-0.6741
						S9	Aspheric surface	16.2360	0.3966	1.535/55.80	14.5392
S10	Aspheric surface	-589.4029	0.2676	--	0.2986 11 -->
						S11	Aspheric surface	2.7403	0.7343	1.535/55.80	-0.8399
S12	Aspheric surface	1.5074	0.6101	--	-1.0287
						S13	Sphere	Infinite	0.2100	1.517/64.17	--
S14	Sphere	Infinite	0.2358	--	--
						S15	Sphere	Infinite	--	--	--

Table 17

Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:

Table 18

f1(mm)	4.01	f(mm)	3.98
				f2(mm)	-13.53	Fno	1.96
f3(mm)	11.09	TTL(mm)	4.73
				f4(mm)	-49.56
f5(mm)	29.44
				f6(mm)	-7.88

Embodiment 7:

Incorporated by reference to Figure 31 ~ Figure 35, in embodiment 7, pick-up lens meets the condition of table 19, table 20 and table 21 below:

Table 19

Face number	Surface type	Radius-of-curvature	Thickness	Refractive index/Abbe number	Circular cone coefficient
						OBJ	Sphere	Infinite	Infinite	--	--
STO	Sphere	Infinite	-0.2920	--	--
						S1	Aspheric surface	1.3008	0.5115	1.544/56.11	-0.8497
S2	Aspheric surface	4.2779	0.0614	--	0.2212
						S3	Aspheric surface	3.1289	0.2106	1.651/21.52	-0.2540 12 -->
S4	Aspheric surface	2.0459	0.2473	--	0.3846
						S5	Aspheric surface	12.0160	0.3841	1.535/55.80	-0.9990
S6	Aspheric surface	-8.8996	0.2964	--	-1.0001
						S7	Sphere	-1.5708	0.3000	1.651/21.52	--
S8	Aspheric surface	-1.6561	0.1000	--	-1.6306
						S9	Aspheric surface	4774.7425	0.4345	1.535/55.80	14.5392
S10	Aspheric surface	-14891.8185	0.2200	--	0.2986
						S11	Aspheric surface	2.2453	0.4965	1.535/55.80	-0.8682
S12	Aspheric surface	1.2668	0.6112	--	-0.9979
						S13	Sphere	Infinite	0.2100	1.517/64.17	--
S14	Sphere	Infinite	0.1965	--	--
						S15	Sphere	Infinite	--	--	--

Table 20

Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, A12, A14, A16 of non-spherical lens:

Table 21

f1(mm)	3.23	f(mm)	3.66
				f2(mm)	-9.76	Fno	2.06
f3(mm)	9.59	TTL(mm)	4.28
				f4(mm)	117.99
f5(mm)	6735.7
				f6(mm)	-6.58

In embodiment 1 ~ 7, each conditional meets the condition of form below:

Conditional embodiment	1	2	3	4	5	6	7
								|f/f3|+|f/f6|	0.950	0.947	0.832	0.784	0.857	0.863	0.937 13 -->
TTL/ImgH	1.427	1.357	1.317	1.317	1.322	1.329	1.403
								CT3/CT4	1.321	1.188	1.496	1.493	1.408	1.482	1.280
f6/f	-1.757	-1.523	-1.866	-2.091	-2.046	-1.981	-1.800
								f/EPD	2.09	2.06	1.96	1.96	1.96	1.96	2.06
R12/R10	-1.22E-04	-1.32E-04	-1.44E-05	-1.47E-05	-2.39E-03	-2.56E-03	-8.51E-05
								ImgH/f	0.823	0.850	0.934	0.930	0.904	0.895	0.834
CT5/CT6	0.900	0.640	0.522	0.528	0.538	0.540	0.875
								f12/f6	-0.660	-0.748	-0.664	-0.591	-0.635	-0.646	-0.643
DT11/DT32	0.947	0.995	0.926	0.925	1.007	1.001	1.049
								DT11/DT62	0.368	0.383	0.372	0.382	0.386	0.385	0.415

In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with described embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.

In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.

Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.

Claims (10)

1. a pick-up lens, is characterized in that, is comprised successively to image side by thing side:

There are the first lens of positive refracting power;

Have the second lens of negative refracting power, the thing side of these the second lens is convex surface, and the face, image side of these the second lens is concave surface;

There are the 3rd lens of positive refracting power;

Have the 4th lens of refracting power, the thing side of the 4th lens is concave surface, and the face, image side of the 4th lens is convex surface;

Have the 5th lens of refracting power, the thing side of the 5th lens is convex surface, and the face, image side of the 5th lens is convex surface;

There are the 6th lens of negative refracting power;

The lens in this pick-up lens with refracting power add up to six;

This pick-up lens meets following relationship:

|f/f3|+|f/f6|<1.0；

TTL/ImgH<1.46；

Wherein, f3 is the effective focal length of the 3rd lens; F6 is the effective focal length of the 6th lens; F is the effective focal length of this pick-up lens; TTL is that the thing side of these the first lens is to distance on the axle of imaging surface; ImgH is the half of the diagonal line length of effective pixel area on this imaging surface.

2. pick-up lens as claimed in claim 1, it is characterized in that, this pick-up lens meets following relationship:

1.0<CT3/CT4<1.6；

Wherein, CT3 is the center thicknesses of the 3rd lens on optical axis; CT4 is the center thicknesses of the 4th lens on this optical axis.

3. pick-up lens as claimed in claim 1, it is characterized in that, this pick-up lens meets following relationship:

-2.1<f6/f<-1.5。

4. pick-up lens as claimed in claim 1, it is characterized in that, this pick-up lens meets following relationship:

f/EPD<2.1；

Wherein, EPD is the diameter of entrance pupil.

5. pick-up lens as claimed in claim 1, it is characterized in that, the face, image side of the 6th lens is concave surface, and this pick-up lens meets following relationship:

-0.5<R12/R10<0；

Wherein, R12 is the radius-of-curvature in the face, image side of the 6th lens; R10 is the radius-of-curvature in the face, image side of the 5th lens.

6. pick-up lens as claimed in claim 1, it is characterized in that, this pick-up lens meets following relationship:

0.8<ImgH/f<1.0。

7. pick-up lens as claimed in claim 1, it is characterized in that, this pick-up lens meets following relationship:

0.5<CT5/CT6<1.4；

Wherein, CT5 is the center thicknesses of the 5th lens on optical axis; CT6 is the center thicknesses of the 6th lens on this optical axis.

8. pick-up lens as claimed in claim 1, it is characterized in that, this pick-up lens meets following relationship:

-1<f12/f6<-0.5；

Wherein, f12 is the combined focal length of these first lens and these the second lens.

9. pick-up lens as claimed in claim 1, it is characterized in that, this pick-up lens meets following relationship:

0.8<DT11/DT32<1.2；

Wherein, DT11 is the effective radius of the thing side of these the first lens; DT32 is the effective radius in the face, image side of the 3rd lens.

10. pick-up lens as claimed in claim 1, it is characterized in that, this pick-up lens meets following relationship:

0.35<DT11/DT62<0.5；

Wherein, DT11 is the effective radius of the thing side of these the first lens; DT62 is the effective radius in the face, image side of the 6th lens.