CN105319676A - Image capturing optical imaging lens - Google Patents

Abstract

The invention relates to an optical imaging lens for taking images, which comprises an aperture, a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially arranged from an object side to an image side; the first lens is a biconvex lens with positive refractive power. The second lens is a convex-concave lens with negative refractive power, the convex surface faces the object side, and the concave surface faces the image side. The third lens is a convex-concave lens with positive refractive power, the convex surface faces the image side, and the concave surface faces the object side. The fourth lens is a convex-concave lens with positive refractive power, the convex surface of the convex-concave lens faces the image side, and the concave surface of the convex-concave lens faces the object side. The fifth lens has a point of inflection toward the object side mirror surface and a point of inflection toward the image side mirror surface, so that the refractive power of the fifth lens is gradually changed from negative refractive power to positive refractive power from the center to the edge.

Description

Image taking optical imaging lens

technical field

The present invention is related to optics; in particular, it refers to an imaging optical imaging lens.

Background technique

In recent years, due to the vigorous development of mobile devices, the market demand for imaging optical modules has been promoted. In order to provide the convenience and portability of mobile devices, the market generally hopes to develop towards miniaturization and light weight while maintaining quality. The benefits of miniaturization and light weight have also driven the demand of other application markets, such as the automotive industry, game console industry, and home appliance industry, all of which have begun to use miniaturized imaging optical modules to create more convenient functions.

With the miniaturization of these mobile devices in recent years, the size of the above-mentioned imaging lenses used in the above-mentioned mobile devices has also been greatly reduced. In addition, due to the higher and higher pixel requirements of mobile devices, the imaging lenses installed on these mobile devices must also have higher optical performance, so that these mobile devices have high resolution and high contrast. show. Therefore, miniaturization and high optical performance are two indispensable elements of today's imaging lenses.

In addition, the imaging lenses currently used in mobile devices are gradually developing towards wide-angle, but wide-angle systems often have problems such as insufficient viewing angle, distortion and chromatic aberration, which easily affect the image quality. Therefore, the design of the existing imaging lens is still not perfect, and there is room for improvement.

Contents of the invention

In view of this, the purpose of the present invention is to provide an imaging optical imaging lens, which can effectively improve the viewing angle of the wide-angle system in addition to meeting the requirements of miniaturization and high light intensity.

In order to achieve the above object, the imaging optical imaging lens provided by the present invention comprises an aperture, a first lens, a second lens, and a third lens arranged in sequence from an object side to an image side and along an optical axis. Lens, a fourth lens and a fifth lens; wherein, the first lens is made of plastic material, and is a biconvex lens with positive refractive power, and at least one mirror surface is an aspheric surface. The second lens is made of plastic material and is a convex-concave lens with negative refractive power. The convex surface faces the object side and the concave surface faces the image side. In addition, at least one mirror surface of the second lens is an aspherical surface. The third lens is made of plastic material and has a convex-concave lens with positive refractive power. The convex surface faces the image side and the concave surface faces the object side. In addition, at least one mirror surface of the third lens is an aspherical surface. The fourth lens is made of glass material, and its refractive index is greater than or equal to 1.7, and it is a convex-concave lens with positive refractive power. The convex surface faces the image side, and the concave surface faces the object side; in addition, the fourth lens has at least one The mirror surface is an aspheric surface. The fifth lens is made of plastic material, and the mirror surface towards the object side is an aspheric surface and has an inflection point, and the mirror surface towards the image side is an aspheric surface and has an inflection point, so that the fifth lens has an aspheric surface and an inflection point. The refractive power gradually changes from negative refractive power to positive refractive power from the place where the optical axis passes to the edge of the lens.

According to the above idea, the two mirror surfaces of the first lens are both aspherical surfaces.

According to the above idea, the two mirror surfaces of the second lens are both aspherical surfaces.

According to the above idea, the two mirror surfaces of the third lens are both aspherical surfaces.

According to the above idea, the two mirror surfaces of the fourth lens are both aspherical surfaces.

According to the above idea, the surface of the mirror surface of the fifth lens facing the object side at the place where the optical axis passes is a convex surface, and the radius of curvature of the mirror surface facing the object side of the fifth lens gradually changes from positive to the edge of the lens from the place where the optical axis passes. Turn negative and turn positive.

According to the above idea, the surface of the mirror surface of the fifth lens facing the object side at the place where the optical axis passes is a concave surface, and the radius of curvature of the mirror surface facing the object side of the fifth lens gradually changes from negative to the edge of the lens from the place where the optical axis passes. Become regular.

According to the above idea, the surface of the mirror surface of the fifth lens facing the image side at the place where the optical axis passes is a concave surface, and the radius of curvature of the mirror surface of the fifth lens facing the image side gradually changes from negative to the edge of the lens from the place where the optical axis passes to the edge of the lens. Become regular.

According to the above concept, the following conditions are also satisfied: 1.70≤f1/R≤1.92; wherein, f1 is the focal length of the first lens; R1 is the radius of curvature of the mirror surface of the first lens facing the object side on the optical axis.

According to the above idea, the following conditions are also satisfied: -0.96≤f2/f≤-1.13; wherein, f2 is the focal length of the second lens; f is the focal length of the imaging optical lens.

According to the above idea, the following conditions are also satisfied: 3.30≤f3/f≤3.93; wherein, f3 is the focal length of the third lens; f is the focal length of the imaging optical lens.

According to the above idea, the following conditions are also satisfied: 0.78≤f4/f≤0.97; wherein, f4 is the focal length of the fourth lens; f is the focal length of the imaging optical lens.

According to the above idea, the following conditions are also satisfied: -0.53≤f5/f≤-0.80; wherein, f5 is the focal length of the fifth lens; f is the focal length of the imaging optical imaging lens.

According to the above concept, the following conditions are also satisfied: 0.78≤f/TTL≤0.96; wherein, f is the focal length of the imaging optical imaging lens; TLL is the total length of the imaging optical imaging lens.

Therefore, through the design of the above-mentioned lens structure and lens material, the objectives of miniaturization and high light intensity can be effectively achieved. In addition, the above design can also effectively improve the viewing angle of the wide-angle system.

Description of drawings

FIG. 1 is a structural diagram of an imaging optical imaging lens according to a first embodiment of the present invention;

Fig. 2A is the field curvature diagram of the first preferred embodiment of the present invention;

Fig. 2B is a distortion diagram of the first preferred embodiment of the present invention;

Fig. 2C is a magnification chromatic aberration diagram of the first preferred embodiment of the present invention;

Fig. 2D is a spherical aberration diagram of the first preferred embodiment of the present invention;

3 is a structural diagram of an imaging optical imaging lens according to a second embodiment of the present invention;

FIG. 4A is a field curvature diagram of the second preferred embodiment of the present invention;

Fig. 4B is a distortion diagram of the second preferred embodiment of the present invention;

Fig. 4C is a magnification chromatic aberration diagram of the second preferred embodiment of the present invention;

Fig. 4D is a spherical aberration diagram of the second preferred embodiment of the present invention;

FIG. 5 is a structural diagram of an imaging optical imaging lens according to a third embodiment of the present invention;

FIG. 6A is a field curvature diagram of a third preferred embodiment of the present invention;

Fig. 6B is a distortion diagram of the third preferred embodiment of the present invention;

FIG. 6C is a magnification chromatic aberration diagram of the third preferred embodiment of the present invention;

Fig. 6D is a spherical aberration diagram of the third preferred embodiment of the present invention;

7 is a structural diagram of an imaging optical imaging lens according to a fourth embodiment of the present invention;

FIG. 8A is a field curvature diagram of a fourth preferred embodiment of the present invention;

Fig. 8B is a distortion diagram of the fourth preferred embodiment of the present invention;

FIG. 8C is a diagram of lateral chromatic aberration of the fourth preferred embodiment of the present invention;

FIG. 8D is a spherical aberration diagram of the fourth preferred embodiment of the present invention.

【Symbol Description】

1~4 imaging optical imaging lens

ST aperture L1 first lens

L2 second lens L3 third lens

L4 fourth lens L5 fifth lens

Z optical axis

CF filter

S1～S13 surface

detailed description

In order to illustrate the present invention more clearly, the first to fourth preferred embodiments are given below and are respectively matched with FIG. 1 , FIG. 3 , FIG. 5 and FIG. 7 , and the details are as follows. Wherein, what Fig. 1 discloses is the imaging optical imaging lens 1 of the first embodiment of the present invention, what Fig. 3 discloses is the imaging optical imaging lens 2 of the second embodiment of the present invention, and what Fig. 5 discloses is the imaging optical imaging lens 2 of the present invention The imaging optical imaging lens 3 of the third embodiment, and FIG. 7 discloses the imaging optical imaging lens 4 of the third embodiment of the present invention. Wherein, the above-mentioned image-taking optical imaging lenses 1-4 respectively include an aperture ST, a first lens L1, and a second lens arranged in sequence along an optical axis Z and from an object side to an image side. L2, a third lens L3, a fourth lens L4, and a fifth lens L5, the refractive powers of the places where the optical axes pass through are positive, negative, positive, positive, and negative in sequence, and the mirror surfaces S2～ S11 are all aspherical surfaces. In addition, according to the requirements of use, an optical filter (Optical Filter) CF is arranged between the fifth lens L5 and the image side to filter out unnecessary noise light and achieve the purpose of improving optical performance. in:

In the imaging optical imaging lenses 1 to 4 of the first to fourth embodiments, the first lens L1 is a biconvex lens. The second lens L2 is a convex-concave lens, with a convex surface S4 facing the object side and a concave surface S5 facing the image side. The third lens L3 is a convex-concave lens, the concave surface S6 faces the object side, and the convex surface S7 faces the image side. The fourth lens L4 is a convex-concave lens, the concave surface S8 faces the object side, and the convex surface S9 faces the imaging surface.

The difference between the various embodiments is that the fifth lens L5 of the image-taking optical imaging lens 1, 2 of the first embodiment and the second embodiment has an inflection point towards the mirror surface S10 on the object side, and the optical axis passes through the The surface of the lens is convex, so that the radius of curvature of the mirror surface S10 of the fifth lens L5 gradually changes from positive to negative and then to positive from where the optical axis passes to the edge of the lens. The mirror surface S11 of the fifth lens L5 toward the image side also has an inflection point, and the surface where the optical axis passes is a concave surface, so that the radius of curvature of the mirror surface S11 of the fifth lens L5 is from the optical axis to the edge of the lens. Gradually change from positive to negative, and cooperate with the mirror surface S10 of the fifth lens L5, so that the refractive power of the fifth lens L5 gradually changes from negative refractive power to positive refractive power from the place where the optical axis passes to the edge of the lens.

The difference between the third embodiment and the fifth lens L5 of the imaging optical imaging lens 3, 4 of the fourth embodiment is that the mirror surface S10 of the fifth lens L5 facing the object side also has an inflection point, but The surface where the optical axis passes is a concave surface, so that the radius of curvature of the mirror surface S10 of the fifth lens L5 gradually changes from negative to positive from the place where the optical axis passes to the edge of the lens, and cooperates with the mirror surface S11 to make the refractive power of the fifth lens L5 From the place where the optical axis passes to the edge of the lens, the negative refractive power gradually changes to positive refractive power.

In order to effectively improve the optical performance of the imaging optical imaging lens, the system focal length f of the imaging optical imaging lens of the first to fourth embodiments of the present invention, the radius of curvature R where the optical axis Z of each lens surface passes, and the distance between each mirror surface and The distance D of the next mirror surface (or imaging surface) on the optical axis Z, the material of each lens, the refractive index Nd of each lens, the Abbe coefficient Vd of each lens, and the focal length of each lens are listed in Table 1 to Table 4 in order. Show:

Table I

Table II

Table three

Table four

In addition, in each lens of the imaging optical imaging lenses 1-4 of each embodiment, the surface concavity z of the aspheric surfaces S2-S11 is obtained by the following formula:

$\mathrm{<span\; class="notranslate">\; z</span>}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; ch</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>\sqrt{\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; k</span>}<span\; class="notranslate">\; )</span>{\mathrm{<span\; class="notranslate">\; c</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; \&alpha;</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}^{\mathrm{<span\; class="notranslate">\; 4</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; \&alpha;</span>}}_{\mathrm{<span\; class="notranslate">\; 3</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}^{\mathrm{<span\; class="notranslate">\; 6</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; \&alpha;</span>}}_{\mathrm{<span\; class="notranslate">\; 4</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}^{\mathrm{<span\; class="notranslate">\; 8</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; \&alpha;</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}^{\mathrm{<span\; class="notranslate">\; 10</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; \&alpha;</span>}}_{\mathrm{<span\; class="notranslate">\; 6</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}^{\mathrm{<span\; class="notranslate">\; 12</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; \&alpha;</span>}}_{\mathrm{<span\; class="notranslate">\; 7</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}^{\mathrm{<span\; class="notranslate">\; 14</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; \&alpha;</span>}}_{\mathrm{<span\; class="notranslate">\; 8</span>}}{\mathrm{<span\; class="notranslate">\; h</span>}}^{\mathrm{<span\; class="notranslate">\; 16</span>}}$

in:

z: Concavity of the aspheric surface;

c: the reciprocal of the radius of curvature;

h: off-axis half-height of the surface;

k: conic coefficient;

α2～α8: Each order coefficient of the off-axis half height h of the surface.

The aspherical coefficients k and coefficients α2-α8 of each aspheric surface S2-S11 of the imaging optical imaging lenses 1-4 of the first to fourth embodiments of the present invention are shown in Table 5 to Table 8 in order:

Table five

Table six

Table Seven

table eight

In addition, in addition to the above-mentioned structural design of the lenses L1-L5, the imaging optical imaging lenses 1-4 of the first to fourth embodiments of the present invention also satisfy the following conditional formula:

(1) 1.7≤Nd4;

(2) 1.70≤f1/R1≤1.92;

(3) -0.96≤f2/f≤-1.13;

(4) 3.30≤f3/f≤3.93;

(5) 0.78≤f4/f≤0.97;

(6) -0.53≤f5/f≤-0.80;

(7) 0.78≤f/TTL≤0.96;

Wherein, Nd4 refers to the refractive index of the fourth lens L4; f is the focal length of the imaging optical imaging lens 100; R1 is the radius of curvature of the mirror surface S2 of the first lens L1 towards the object side on the optical axis Z; f1 f2 is the focal length of the second lens L2; f3 is the focal length of the third lens L3; f4 is the focal length of the fourth lens L4; f5 is the focal length of the fifth lens L5; The overall length of the optical imaging lens 100.

And the purpose of the above-mentioned conditional formula design is that if the imaging optical imaging lens 1～4 satisfies the first (1) and (7) formulas, the total length of the imaging optical imaging lens 100 can be shortened effectively; if the imaging optical imaging lens 100 is satisfied; ) to (5), then the amount of peripheral distortion can be effectively controlled, and chromatic aberration of magnification, spherical aberration and curvature of field can be corrected; if formula (6) is satisfied, the aspherical shape of the fifth lens L5 can be The light passing through the periphery of the fifth lens L5 is effectively suppressed to achieve the effect of reducing the incident angle, thereby reducing or reducing the color mixing effect caused by a large angle to the sensor. In other words, when the imaging optical imaging lens 100 does not satisfy the above conditional expression, there will be disadvantages such as ineffective miniaturization, aberration degradation, and image quality degradation.

The detailed data of the imaging optical imaging lenses 1 to 4 of the first to fourth embodiments of the present invention under the above conditions are shown in Table 9:

Table nine

first embodiment second embodiment third embodiment Fourth embodiment TTL 5.65 5.65 4.7 4.6 Nd4 1.81 1.81 1.81 1.81 f1/R1 1.7676 1.7956 1.8494 1.8587 f2/f -1.0295 -1.0424 -1.0775 -1.0249 f3/f 3.4863 3.9004 3.3625 3.5000 f4/f 0.9074 0.8771 0.8950 0.8408 f5/f -0.7411 -0.7309 -0.6550 -0.6070 f/TTL 0.8407 0.8354 0.8511 0.8739

Therefore, through the aspherical design of the front aperture ST and the lenses L1 - L5 , the distortion problem that is likely to occur in the wide-angle optical design of the imaging optical imaging lenses 1 - 4 can be effectively corrected. In addition, the fourth lens L4 is made of glass material and has a design with a refractive index greater than 1.7. The refractive powers of the lenses L1-L5 are positive, negative, positive, positive, and negative. , can also make the image achieve better imaging quality, and then can effectively achieve the effect of reducing the size of the lens, wide-angle and reducing optical distortion.

In this way, please refer to FIG. 2A to FIG. 2D , the imaging optical imaging lens 1 of the first embodiment of the present invention can also meet the requirements in terms of imaging quality through the design of the above-mentioned lenses L1-L5 and aperture ST, wherein, It can be seen from FIG. 2A that the maximum field curvature of the imaging optical imaging lens 1 does not exceed -0.08mm and 0.04mm; it can be seen from FIG. 2B that the maximum distortion of the imaging optical imaging lens 1 does not exceed -0.5%. and 3%; it can be seen from FIG. 2C that the magnification chromatic aberration of the imaging optical imaging lens 1 does not exceed -4 μm and 4 μm. It can be seen from FIG. 2D that the spherical aberration of the imaging optical imaging lens 1 does not exceed -0.04mm and 0.02mm. Therefore, the high optical performance of the imaging optical imaging lens 1 can be clearly seen from FIG. 2A to FIG. 2D .

Please refer to FIG. 4A to FIG. 4D continuously. The imaging optical imaging lens 2 of the second embodiment of the present invention can also meet the requirements in terms of imaging quality through the design of the above-mentioned lenses L1-L5 and the aperture ST. Among them, from FIG. 4A It can be seen that the maximum field curvature of the imaging optical imaging lens 2 does not exceed -0.06mm and 0.06mm; it can be seen from Figure 4B that the maximum distortion of the imaging optical imaging lens 2 does not exceed -0.5% and 2.5% It can be seen from FIG. 4C that the chromatic aberration of magnification of the imaging optical imaging lens 2 does not exceed -4 μm and 4 μm. It can be seen from FIG. 4D that the spherical aberration of the imaging optical imaging lens 2 does not exceed -0.02mm and 0.02mm. Therefore, the high optical performance of the imaging optical imaging lens 2 can be clearly seen from FIG. 4A to FIG. 4D .

In addition, please refer to FIG. 6A to FIG. 6D , the imaging optical imaging lens 3 of the third embodiment of the present invention can also meet the requirements in terms of imaging quality through the design of the above-mentioned lenses L1-L5 and aperture ST. It can be seen from 6A that the maximum field curvature of the imaging optical imaging lens 3 does not exceed -0.08mm and 0.06mm; it can be seen from Figure 6B that the maximum distortion of the imaging optical imaging lens 3 does not exceed -0.5% and 2.5% %; It can be seen from FIG. 6C that the chromatic aberration of magnification of the imaging optical imaging lens 3 does not exceed -4 μm and 4 μm. It can be seen from FIG. 6D that the spherical aberration of the imaging optical imaging lens 3 does not exceed -0.04mm and 0.02mm. Therefore, the high optical performance of the imaging optical imaging lens 3 can be clearly seen from FIG. 6A to FIG. 6D .

Furthermore, please refer to FIG. 8A to FIG. 8D , the imaging optical imaging lens 4 of the fourth embodiment of the present invention can also meet the requirements in terms of imaging quality through the design of the above-mentioned lenses L1-L5 and aperture ST, wherein, by It can be seen from Fig. 8A that the maximum field curvature of the imaging optical imaging lens 3 does not exceed -0.06mm and 0.06mm; it can be seen from Fig. 8B that the maximum distortion of the imaging optical imaging lens 3 does not exceed -0.5% and 2.5%; it can be seen from FIG. 8C that the magnification chromatic aberration of the imaging optical imaging lens 3 does not exceed -4 μm and 4 μm. It can be seen from FIG. 8D that the spherical aberration of the imaging optical imaging lens 3 does not exceed -0.02mm and 0.02mm. Therefore, the high optical performance of the imaging optical imaging lens 4 can be clearly seen from FIG. 8A to FIG. 8D .

To sum up, the imaging optical imaging lenses 1-4 of the present invention can effectively meet the requirements of miniaturization and high light intensity through the above-mentioned design of the lens structure, lens material and optical conditions. In addition, the above design can also effectively improve the viewing angle of the wide-angle system.

The above description is only a preferred feasible embodiment of the present invention, and any equivalent changes made by applying the scope of the specification and claims of the present invention should be included in the patent scope of the present invention.

Claims (17)

1. a capture optical imaging lens, is characterized in that, includes by thing side to image side and along optical axis sequential:

One aperture;

One first eyeglass, makes with plastic material, and for having the biconvex lens of positive refractive power, and at least one minute surface is non-spherical surface;

One second eyeglass, makes with plastic material, and for having the meniscus of negative refractive power, it is convex surface facing this thing side, and this image side concave surface facing; In addition, at least one minute surface of this second eyeglass is non-spherical surface;

One the 3rd eyeglass, make with plastic material, and have the meniscus of positive refractive power, it is convex surface facing this image side, and this thing side concave surface facing; In addition, at least one minute surface of the 3rd eyeglass is non-spherical surface;

One the 4th eyeglass, make, and its refractive index is more than or equal to 1.7 with glass material, and for having the meniscus of positive refractive power, it is convex surface facing this image side, and this thing side concave surface facing; In addition, at least one minute surface of the 4th eyeglass is non-spherical surface;

One the 5th eyeglass, make with plastic material, and be non-spherical surface towards the minute surface of this thing side and there is the point of inflexion, and be non-spherical surface towards the minute surface of this image side and there is the point of inflexion, make the refractive power of the 5th eyeglass gradually by negative refractive power change into positive refractive power by place toward lens edge from optical axis.

2. capture optical imaging lens as claimed in claim 1, it is characterized in that, two minute surfaces of this first eyeglass are all non-spherical surface.

3. capture optical imaging lens as claimed in claim 1, it is characterized in that, two minute surfaces of this second eyeglass are all non-spherical surface.

4. capture optical imaging lens as claimed in claim 1, it is characterized in that, two minute surfaces of the 3rd eyeglass are all non-spherical surface.

5. capture optical imaging lens as claimed in claim 1, it is characterized in that, two minute surfaces of the 4th eyeglass are all non-spherical surface.

6. capture optical imaging lens as claimed in claim 1, is characterized in that, the 5th eyeglass is convex surface towards the minute surface of this thing side in optical axis by the surface located.

7. capture optical imaging lens as claimed in claim 6, is characterized in that, the 5th eyeglass, towards the radius-of-curvature of the minute surface of this thing side, is become a full member by rotating forward is negative toward lens edge from optical axis gradually by place again.

8. capture optical imaging lens as claimed in claim 1, is characterized in that, the 5th eyeglass is concave surface towards the minute surface of this thing side in optical axis by the surface located.

9. capture optical imaging lens as claimed in claim 8, is characterized in that, the 5th eyeglass, towards the radius-of-curvature of the minute surface of this thing side, is turned negative number to positive number toward lens edge from optical axis gradually by place.

10. capture optical imaging lens as claimed in claim 1, is characterized in that, the 5th eyeglass is concave surface towards the minute surface of this image side in optical axis by the surface located.

11. capture optical imaging lens as claimed in claim 10, is characterized in that, the 5th eyeglass, towards the radius-of-curvature of the minute surface of this image side, is turned negative number to positive number toward lens edge from optical axis gradually by place.

12. capture optical imaging lens as claimed in claim 1, is characterized in that, also meet the following conditions:

1.70≤f1/R≤1.92; Wherein, f1 is the focal length of the first eyeglass; R1 is the minute surface radius-of-curvature in optical axis on of this first eyeglass towards this thing side.

13. capture optical imaging lens as claimed in claim 1, is characterized in that, also meet the following conditions:

-0.96≤f2/f≤-1.13; Wherein, f2 is the focal length of the second eyeglass; F is the focal length of this capture optical imaging lens.

14. capture optical imaging lens as claimed in claim 1, is characterized in that, also meet the following conditions:

3.30≤f3/f≤3.93; Wherein, f3 is the focal length of the 3rd eyeglass; F is the focal length of this capture optical imaging lens.

15. capture optical imaging lens as claimed in claim 1, is characterized in that, also meet the following conditions:

0.78≤f4/f≤0.97; Wherein, f4 is the focal length of the 4th eyeglass; F is the focal length of this capture optical imaging lens.

16. capture optical imaging lens as claimed in claim 1, is characterized in that, also meet the following conditions:

-0.53≤f5/f≤-0.80; Wherein, f5 is the focal length of the 5th eyeglass; F is the focal length of this capture optical imaging lens.

17. capture optical imaging lens as claimed in claim 1, is characterized in that, also meet the following conditions:

0.78≤f/TTL≤0.96; Wherein, f is the focal length of this capture optical imaging lens; TLL is the overall length of this capture optical imaging lens.