CN107884910A - Camera optical camera lens - Google Patents

Abstract

The present invention relates to field of optical lens, discloses a kind of camera optical camera lens, and it is sequentially included by thing side to image side：Aperture, the first lens, the second lens, the 3rd lens, the 4th lens, and the 5th lens；The camera optical camera lens meets following relationship：0.75<f1/f<0.80,‑2.1<f2/f<‑1.9,‑15<f3/f<‑13,0.57<f4/f<0.61,‑0.52<f5/f<‑0.48.The camera optical camera lens has larger aperture, it may have larger image height, is more applicable for high-pixel camera system.

Description

Camera Optical Lens

technical field

The invention relates to the field of optical lenses, in particular to an imaging optical lens suitable for portable terminal devices such as smart phones and digital cameras, and imaging devices such as monitors and PC lenses.

Background technique

In recent years, with the rise of smart phones, the demand for miniaturized photographic lenses has been increasing, and the photosensitive devices of general photographic lenses are nothing more than photocoupled devices (Charge Coupled Device, CCD) or complementary metal oxide semiconductor devices (Complementary Metal -OxideSemiconductor Sensor, CMOS Sensor), and due to the improvement of semiconductor manufacturing process technology, the pixel size of photosensitive devices has been reduced, and today's electronic products are developing with good functions and thin, light and small appearance. Therefore, it has good Miniaturized camera lenses with image quality have become the mainstream in the market.

In order to obtain better imaging quality, traditional lenses mounted on mobile phone cameras mostly adopt a three-element or four-element lens structure. However, with the development of technology and the increase of diversified needs of users, as the pixel area of the photosensitive device continues to shrink, and the system’s requirements for imaging quality continue to increase, the five-element lens structure gradually appears in the lens design, but , although the common five-element lens can correct most of the optical aberrations of the optical system, its optical performance is still far behind that of the six-element lens. It cannot have a larger aperture and does not have a larger imaging height. It cannot be well suited for high-pixel camera systems.

Contents of the invention

In view of the above problems, the purpose of the present invention is to provide a camera optical lens, which has a larger aperture and a larger imaging height, and is more suitable for high-pixel camera systems.

In order to solve the above-mentioned technical problems, an embodiment of the present invention provides a photographic optical lens, which includes in sequence from the object side to the image side: an aperture, a first lens with positive refractive power, and a second lens with negative refractive power. Lens, a third lens with negative refractive power, a fourth lens with positive refractive power, and a fifth lens with negative refractive power; the focal length of the overall imaging optical lens is f, and the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, and the focal length of the fifth lens is f5, satisfying the following relationship: 0.75<f1 /f<0.80, -2.1<f2/f<-1.9, -15<f3/f<-13, 0.57<f4/f<0.61, -0.52<f5/f<-0.48.

Compared with the prior art, the embodiments of the present invention can effectively use the cooperation of individual lenses with specific relationships in the data of lenses with different refractive powers and focal lengths to obtain a larger aperture through the configuration of the above-mentioned lenses, and at the same time Obtaining a larger imaging height makes the camera optical lens more suitable for high-pixel camera systems.

In addition, the refractive index n2 of the second lens and the refractive index n3 of the third lens satisfy the following relationship: 3.6<n2*n3<3.9.

In addition, the axial thickness d3 of the second lens and the axial thickness d5 of the third lens satisfy the following relationship: 17<1/(d3*d5)<19.

In addition, the radius of curvature r3 of the object side of the second lens and the radius of curvature r4 of the image side of the second lens satisfy the following relationship: 0.7<(r3+r4)/(r3-r4)<0.8.

In addition, the focal length f1 of the first lens, the focal length f2 of the second lens, the focal length f3 of the third lens, the focal length f4 of the fourth lens, and the focal length f5 of the fifth lens satisfy the following relationship Formula: 2.9<f1<3.1, -7.9<f2<-7.4, -58<f3<-50, 2.2<f4<2.4, -2.1<f5<-1.9.

In addition, the refractive index n1 of the first lens, the refractive index n2 of the second lens, the refractive index n3 of the third lens, the refractive index n4 of the fourth lens, and the refractive index of the fifth lens The rate n5 satisfies the following relational formula: 1.5<n1<1.6, 1.8<n2<1.9, 1.9<n3<2.1, 1.53<n4<1.55, 1.52<n5<1.55.

In addition, the Abbe number v1 of the first lens, the Abbe number v2 of the second lens, the Abbe number v3 of the third lens, the Abbe number v4 of the fourth lens, and the Abbe number v4 of the second lens The Abbe number v5 of the pentalens satisfies the following relational formula: 55<v1<57, 23<v2<25, 19<v3<21, 55<v4<57, 55<v5<57.

In addition, the total optical length TTL of the imaging optical lens is less than or equal to 4.6 millimeters.

In addition, the aperture F number of the imaging optical lens is less than or equal to 1.9.

In addition, the on-axis thickness of the second lens is d3, and the on-axis thickness of the third lens is d5, which satisfy the following relationship: 0.8<d3/d5<0.9.

Description of drawings

Fig. 1 is a schematic structural view of the imaging optical lens of the present invention in the first embodiment;

Fig. 2 is a schematic diagram of axial chromatic aberration of the imaging optical lens shown in Fig. 1;

Fig. 3 is a schematic diagram of magnification chromatic aberration of the imaging optical lens shown in Fig. 1;

Fig. 4 is astigmatic field curvature and distortion schematic diagram of imaging optical lens shown in Fig. 1;

Fig. 5 is a schematic structural view of the imaging optical lens of the present invention in a second embodiment;

Fig. 6 is a schematic diagram of axial chromatic aberration of the imaging optical lens shown in Fig. 5;

Fig. 7 is a schematic diagram of magnification chromatic aberration of the imaging optical lens shown in Fig. 5;

FIG. 8 is a schematic diagram of astigmatism field curvature and distortion of the imaging optical lens shown in FIG. 5 .

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that in each implementation manner of the present invention, many technical details are proposed in order to enable readers to better understand the present invention. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in the present invention can also be realized.

With reference to the accompanying drawings, the present invention provides an imaging optical lens. FIG. 1 shows an imaging optical lens 10 according to a first embodiment of the present invention, and the imaging optical lens 10 includes five lenses. Specifically, the photographing optical lens 10 includes, from the object side to the image side, an aperture St, a first lens L1 , a second lens L2 , a third lens L3 , a fourth lens L4 , and a fifth lens L5 . An optical element such as an optical filter (filter) GF may be disposed between the fifth lens L5 and the image plane Si.

The first lens L1 has a positive refractive power, and its object side protrudes outward as a convex surface, and the aperture St is disposed between the object and the first lens L1. The second lens L2 has a negative refractive power. In this embodiment, the image side of the second lens L2 is a concave surface. The third lens L3 has a negative refractive power. In this embodiment, the object side of the third lens L3 is concave, and the image side is convex. The fourth lens L4 has positive refractive power. In this embodiment, the object side of the fourth lens L4 is concave, and the image side is convex. The fifth lens L5 has a negative refractive power. In this embodiment, the object side surface of the fifth lens L5 is a concave surface.

Here, the focal length of the overall imaging optical lens 10 is defined as f, the focal length of the first lens L1 is f1, the focal length of the second lens L2 is f2, the focal length of the third lens L3 is f3, and the focal length of the first lens L1 is f1. The focal length of the four lenses L4 is f4, the focal length of the fifth lens L5 is f5, the refractive index of the second lens L2 is n2, the refractive index of the third lens L3 is n3, and the refractive index of the second lens L2 is The thickness on the axis is d3, the thickness on the axis of the third lens L3 is d5, the radius of curvature on the object side of the second lens L2 is r3, and the radius of curvature on the image side of the second lens L2 is r4. The f, f1, f2, f3, f4, f5, n2, n3, d3, d5, r3 and r4 satisfy the following relational formula: 0.75<f1/f<0.80,-2.1<f2/f<-1.9,-15 <f3/f<-13,0.57<f4/f<0.61,-0.52<f5/f<-0.48; 3.6<n2*n3<3.9,17<1/(d3*d5)<19,0.7<(r3 +r4)/(r3-r4)<0.8.

When the focal length of the imaging optical lens 10 of the present invention, the focal length of each lens, the refractive index of the relevant lens, the thickness on the axis and the radius of curvature satisfy the above-mentioned relational expression, the imaging optical lens 10 can be made to have a larger aperture and have a larger aperture. The large imaging height is more suitable for high-pixel camera systems, and is also more suitable for portable camera devices.

Specifically, in the embodiment of the present invention, the focal length f1 of the first lens L1, the focal length f2 of the second lens L2, the focal length f3 of the third lens L3, the focal length f4 of the fourth lens L4, and The focal length f5 of the fifth lens L5 can be designed to satisfy the following relational formula: 2.9<f1<3.1, -7.9<f2<-7.4, -58<f3<-50, 2.2<f4<2.4, -2.1<f5< -1.9, unit: millimeter (mm). With such a design, the total optical length TTL of the overall imaging optical lens 10 can be shortened as much as possible, and the characteristic of miniaturization can be maintained.

Preferably, the total optical length TTL of the imaging optical lens 10 in the embodiment of the present invention is less than or equal to 4.6 mm. This design is more conducive to realizing the miniaturization design of the imaging optical lens 10 . Preferably, in the embodiment of the present invention, the aperture F number of the imaging optical lens 10 is less than or equal to 1.9, which is conducive to realizing the large aperture design of the imaging optical lens 10, and the design of this large aperture can improve the low-speed of the imaging optical lens 10. Imaging performance under illumination environment.

Preferably, in the embodiment of the present invention, the on-axis thickness d3 of the second lens L2 and the on-axis thickness d5 of the third lens L3 satisfy the relationship: 0.8<d3/d5<0.9, so designed that the second lens L2 and the third lens L3 The three-lens L3 has an optimal thickness, which is beneficial to realize the assembly configuration of the system.

In the imaging optical lens 10 of the present invention, the material of each lens can be glass or plastic, if the material of the lens is glass, then can increase the degree of freedom of the refractive power configuration of the optical system of the present invention, if the material of the lens is plastic, then can effectively reduce Cost of production.

In the embodiment of the present invention, the material of the second lens L2 and the third lens L3 is glass, and the material of the first lens L1 , the fourth lens L4 and the fifth lens L5 is plastic. Wherein, the glass material design of the second lens L2 and the third lens L3 can effectively improve the optical performance of the imaging optical lens 10 , and its reliability has better performance under different temperature and humidity conditions.

Further, in a preferred embodiment of the present invention, the refractive index n1 of the first lens L1, the refractive index n2 of the second lens L2, the refractive index n3 of the third lens L3, the fourth lens The refractive index n4 of L4 and the refractive index n5 of the fifth lens L5 satisfy the following relational formula: 1.5<n1<1.6, 1.8<n2<1.9, 1.9<n3<2.1, 1.53<n4<1.55, 1.52<n5< 1.55. Such a design is beneficial to the better matching of the lenses when different optical materials are used, so that the imaging optical lens 10 can obtain better imaging quality.

It should be noted that, in the embodiment of the present invention, the Abbe number v1 of the first lens L1, the Abbe number v2 of the second lens L2, the Abbe number v3 of the third lens L3, and the Abbe number v3 of the second lens L3, The Abbe number v4 of the four-lens L4 and the Abbe number v5 of the fifth lens L5 can be designed to satisfy the following relationship: 55<v1<57,23<v2<25,19<v3<21,55< v4<57, 55<v5<57. Such a design can effectively suppress the optical chromatic aberration phenomenon when the imaging optical lens 10 forms an image.

It can be understood that the refractive index design scheme and the Abbe number design scheme of the above-mentioned lenses can be combined with each other and applied in the design of the imaging optical lens 10, so that the second lens L2 and the third lens L3 adopt high An optical material with a refractive index and a low Abbe number can effectively reduce system chromatic aberration and greatly improve the imaging quality of the imaging optical lens 10 .

In addition, the surface of the lens can be set as an aspheric surface, and the aspheric surface can be easily made into a shape other than a spherical surface, so that more control variables can be obtained to reduce aberrations, thereby reducing the number of lenses used, so the imaging optics of the present invention can be effectively reduced. The overall length of the lens. In the embodiment of the present invention, the object side and the image side of each lens are both aspherical.

Preferably, an inflection point and/or a stagnation point can also be set on the object side and/or the image side of the lens to meet high-quality imaging requirements. For specific implementations, refer to the following description.

Design data of the imaging optical lens 10 according to Embodiment 1 of the present invention are shown below.

Table 1 and Table 2 show the data of the imaging optical lens 10 according to Embodiment 1 of the present invention.

【Table 1】

The meaning of each symbol is as follows.

f: the focal length of the camera optical lens 10;

f1: the focal length of the first lens L1;

f2: focal length of the second lens L2;

f3: focal length of the third lens L3;

f4: focal length of the fourth lens L4;

f5: focal length of the fifth lens L5.

【Table 2】

Among them, R1 and R2 are the object side and image side of the first lens L1, R3 and R4 are the object side and image side of the second lens L2, R5 and R6 are the object side and image side of the third lens L3, R7 and R8 are the object side and image side of the fourth lens L4, R9 and R10 are the object side and image side of the fifth lens L5, and R11 and R12 are the object side and image side of the optical filter GF. The meanings of other symbols are as follows.

d0: the axial distance from the aperture St to the object side of the first lens L1;

d1: axial thickness of the first lens L1;

d2: the axial distance from the image side of the first lens L1 to the object side of the second lens L2;

d3: axial thickness of the second lens L2;

d4: On-axis distance from the image side of the second lens L2 to the object side of the third lens L3;

d5: axial thickness of the third lens L3;

d6: On-axis distance from the image side of the third lens L3 to the object side of the fourth lens L4;

d7: axial thickness of the fourth lens L4;

d8: On-axis distance from the image side of the fourth lens L4 to the object side of the fifth lens L5;

d9: axial thickness of the fifth lens L5;

d10: On-axis distance from the image side of the fifth lens L5 to the object side of the optical filter GF;

d11: axial thickness of optical filter GF;

d12: On-axis distance from the image side of the optical filter GF to the image plane;

nd1: the refractive index of the first lens L1;

nd2: the refractive index of the second lens L2;

nd3: the refractive index of the third lens L3;

nd4: the refractive index of the fourth lens L4;

nd5: the refractive index of the fifth lens L5;

ndg: the refractive index of the optical filter GF;

v1: the Abbe number of the first lens L1;

v2: Abbe number of the second lens L2;

v3: the Abbe number of the third lens L3;

v4: the Abbe number of the fourth lens L4;

v5: the Abbe number of the fifth lens L5;

vg: Abbe number of the optical filter GF.

Table 3 shows aspheric surface data of each lens in the imaging optical lens 10 according to Embodiment 1 of the present invention.

【table 3】

Table 4 and Table 5 show the design data of the inflection point and the stagnation point of each lens in the imaging optical lens 10 according to Embodiment 1 of the present invention. Wherein, R1 and R2 represent the object side and image side of the first lens L1 respectively, R3 and R4 represent the object side and image side of the second lens L2 respectively, R5 and R6 represent the object side and image side of the third lens L3 respectively, R7 and R8 respectively represent the object side and the image side of the fourth lens L4, and R9 and R10 represent the object side and the image side of the fifth lens L5 respectively. The data corresponding to the column of “inflection point position” is the vertical distance from the inflection point set on each lens surface to the optical axis of the imaging optical lens 10 . The data corresponding to the “stationary point position” column is the vertical distance from the stationary point set on each lens surface to the optical axis of the imaging optical lens 10 .

【Table 4】

Number of inflection points Inflection point position 1 Inflection point position 2 Inflection point position 3 R1 1 1.025 R2 1 0.745 R3 1 0.325 R4 1 0.875 R5 0 R6 0 R7 2 1.115 1.445 R8 2 1.105 1.585 R9 1 1.305 R10 3 0.575 2.455 2.675

【table 5】

Stationary number Stationary position 1 R1 0 R2 1 0.995 R3 1 0.465 R4 0 R5 0 R6 0 R7 0 R8 0 R9 1 2.315 R10 1 1.285

FIG. 2 and FIG. 3 respectively show schematic diagrams of axial chromatic aberration and lateral chromatic aberration of light with wavelengths of 486 nm, 588 nm, and 656 nm passing through the imaging optical lens 10 of Embodiment 1. FIG. 4 shows a schematic diagram of the astigmatism field curvature and distortion after the light with a wavelength of 588 nm passes through the imaging optical lens 10 of the first embodiment.

Table 6 below lists values corresponding to each relational expression in this embodiment according to the above relational expressions. Obviously, the imaging optical system of this embodiment satisfies the above-mentioned relational expression.

【Table 6】

condition Embodiment 1 0.75<f1/f<0.80 0.781026607 -2.1<f2/f<-1.9 -1.960317957 -15<f3/f<-13 -13.81075419 0.57<f4/f<0.61 0.592599883 -0.52<f5/f<-0.48 -0.50383797 3.6<n2*n3<3.9 3.738353858 17<1/(d3*d5)<19 18.23985408 0.7<(r3+r4)/(r3-r4)<0.8 0.764209556

In this embodiment, the entrance pupil diameter of the imaging optical lens is 2.06 mm, the full field image height is 3.261 mm, and the field angle in the diagonal direction is 79.07°.

As shown in FIG. 5 , it is an imaging optical lens 20 in Embodiment 2 of the present invention, and the structure and arrangement of the imaging optical lens 20 and the imaging optical lens 10 in Embodiment 1 are substantially the same.

Design data of the imaging optical lens 20 according to Embodiment 2 of the present invention are shown below.

Table 7 and Table 8 show the data of the imaging optical lens 20 according to Embodiment 2 of the present invention.

【Table 7】

The meaning of each symbol is as follows.

f: the focal length of the camera optical lens 20;

f1: the focal length of the first lens L1;

f2: focal length of the second lens L2;

f3: focal length of the third lens L3;

f4: focal length of the fourth lens L4;

f5: focal length of the fifth lens L5.

【Table 8】

Among them, R1 and R2 are the object side and image side of the first lens L1, R3 and R4 are the object side and image side of the second lens L2, R5 and R6 are the object side and image side of the third lens L3, R7 and R8 are the object side and image side of the fourth lens L4, R9 and R10 are the object side and image side of the fifth lens L5, and R11 and R12 are the object side and image side of the optical filter GF. The meanings of other symbols are as follows.

d0: the axial distance from the aperture St to the object side of the first lens L1;

d1: axial thickness of the first lens L1;

d2: the axial distance from the image side of the first lens L1 to the object side of the second lens L2;

d3: axial thickness of the second lens L2;

d4: On-axis distance from the image side of the second lens L2 to the object side of the third lens L3;

d5: axial thickness of the third lens L3;

d6: On-axis distance from the image side of the third lens L3 to the object side of the fourth lens L4;

d7: axial thickness of the fourth lens L4;

d8: On-axis distance from the image side of the fourth lens L4 to the object side of the fifth lens L5;

d9: axial thickness of the fifth lens L5;

d10: On-axis distance from the image side of the fifth lens L5 to the object side of the optical filter GF;

d11: axial thickness of optical filter GF;

d12: On-axis distance from the image side of the optical filter GF to the image plane;

nd1: the refractive index of the first lens L1;

nd2: the refractive index of the second lens L2;

nd3: the refractive index of the third lens L3;

nd4: the refractive index of the fourth lens L4;

nd5: the refractive index of the fifth lens L5;

ndg: the refractive index of the optical filter GF;

v1: the Abbe number of the first lens L1;

v2: Abbe number of the second lens L2;

v3: the Abbe number of the third lens L3;

v4: the Abbe number of the fourth lens L4;

v5: the Abbe number of the fifth lens L5;

vg: Abbe number of the optical filter GF.

Table 9 shows aspheric surface data of each lens in the imaging optical lens 20 according to Embodiment 2 of the present invention.

【Table 9】

Table 10 and Table 11 show the design data of the inflection point and the stagnation point of each lens in the imaging optical lens 20 according to Embodiment 2 of the present invention. Wherein, R1 and R2 represent the object side and image side of the first lens L1 respectively, R3 and R4 represent the object side and image side of the second lens L2 respectively, R5 and R6 represent the object side and image side of the third lens L3 respectively, R7 and R8 respectively represent the object side and image side of the fourth lens L4, and R9 and R10 represent the object side and image side of the fifth lens L5 respectively. The data corresponding to the column of “inflection point position” is the vertical distance from the inflection point set on each lens surface to the optical axis of the imaging optical lens 20 . The data corresponding to the “stationary point position” column is the vertical distance from the stationary point set on each lens surface to the optical axis of the imaging optical lens 20 .

【Table 10】

Number of inflection points Inflection point position 1 Inflection point position 2 Inflection point position 3 R1 1 1.025 R2 1 0.745 R3 1 0.325 R4 1 0.875 R5 0 R6 0 R7 2 1.115 1.455 R8 2 1.105 1.585 R9 1 1.315 R10 3 0.575 2.465 2.665

【Table 11】

Stationary number Stationary position 1 R1 0 R2 1 0.995 R3 1 0.475 R4 0 R5 0 R6 0 R7 0 R8 0 R9 0 R10 1 1.295

FIG. 6 and FIG. 7 respectively show schematic diagrams of axial chromatic aberration and chromatic aberration of magnification of light with wavelengths of 486 nm, 588 nm, and 656 nm passing through the imaging optical lens 20 of Embodiment 1. FIG. 8 shows a schematic diagram of the astigmatism field curvature and distortion after the light with a wavelength of 588 nm passes through the imaging optical lens 20 of the second embodiment.

Table 12 below lists values corresponding to each relational expression in this embodiment according to the above relational expressions. Obviously, the imaging optical system of this embodiment satisfies the above-mentioned relational expression.

【Table 12】

In this embodiment, the entrance pupil diameter of the imaging optical lens is 2.06 mm, the full field image height is 3.261 mm, and the field angle in the diagonal direction is 79.15°.

Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present invention, and in practical applications, various changes can be made to it in form and details without departing from the spirit and spirit of the present invention. scope.

Claims (10)

1. a kind of camera optical camera lens, it is characterised in that the camera optical camera lens, sequentially included by thing side to image side：One light Circle, one has the first lens of positive refracting power, and one has the second lens of negative refracting power, and one the with negative refracting power the 3rd is saturating Mirror, one has the 4th lens of positive refracting power, and one has the 5th lens for bearing refracting power；

The focal length of overall camera optical camera lens is f, and the focal length of first lens is f1, and the focal length of second lens is f2, The focal length of 3rd lens is f3, and the focal length of the 4th lens is f4, and the focal lengths of the 5th lens is f5, described second The radius of curvature of lens image side surface is r4, meets following relationship：

0.75<f1/f<0.80,-2.1<f2/f<-1.9,-15<f3/f<-13,0.57<f4/f<0.61,-0.52<f5/f<- 0.48。

2. camera optical camera lens according to claim 1, it is characterised in that the refractive index n2 of second lens, it is described The refractive index n3 of 3rd lens meets following relationship：

3.6<n2*n3<3.9。

3. camera optical camera lens according to claim 1, it is characterised in that thickness d 3 on the axle of second lens, institute State thickness d 5 on the axle of the 3rd lens and meet following relationship：

17<1/(d3*d5)<19。

4. camera optical camera lens according to claim 1, it is characterised in that the radius of curvature of the second lens thing side R3, the radius of curvature r4 of the second lens image side surface meet relationship below：

0.7<(r3+r4)/(r3-r4)<0.8。

5. camera optical camera lens according to claim 1, it is characterised in that the focal length f1 of first lens, described Focal length f2, the focal length f3 of the 3rd lens, the focal length f4 of the 4th lens of two lens, and Jiao of the 5th lens Meet following relationship away from f5：

2.9<f1<3.1, -7.9<f2<- 7.4, -58<f3<- 50,2.2<f4<2.4, -2.1<f5<-1.9.

6. camera optical camera lens according to claim 1, it is characterised in that the refractive index n1 of first lens, it is described Refractive index n2, the refractive index n3 of the 3rd lens, the refractive index n4 of the 4th lens of second lens, and the described 5th The refractive index n5 of lens meets following relationship：

1.5<n1<1.6,1.8<n2<1.9,1.9<n3<2.1,1.53<n4<1.55,1.52<n5<1.55。

7. camera optical camera lens according to claim 1, it is characterised in that the Abbe number v1 of first lens, it is described Abbe number v2, the Abbe number v3 of the 3rd lens, the Abbe number v4 of the 4th lens of second lens, and the described 5th The Abbe number v5 of lens meets following relationship：

55<v1<57,23<v2<25,19<v3<21,55<v4<57,55<v5<57.

8. camera optical camera lens according to claim 1, it is characterised in that the optics overall length of the camera optical camera lens TTL is less than or equal to 4.6 millimeters.

9. camera optical camera lens according to claim 1, it is characterised in that the aperture F numbers of the camera optical camera lens are small In or equal to 1.9.

10. camera optical camera lens according to claim 1, it is characterised in that thickness is d3 on the axle of second lens, Thickness is d5 on the axle of 3rd lens, meets following relationship：0.8 ＜ d3/d5 ＜ 0.9.