CN213633970U - Large-aperture high-resolution lens - Google Patents
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- CN213633970U CN213633970U CN202022770081.7U CN202022770081U CN213633970U CN 213633970 U CN213633970 U CN 213633970U CN 202022770081 U CN202022770081 U CN 202022770081U CN 213633970 U CN213633970 U CN 213633970U
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Abstract
The utility model relates to a big light ring high resolution power camera lens, its technical essential is, contains along the optical axis in proper order from the thing side to picture side: a first lens element having positive refractive power, a convex object-side surface and a concave image-side surface; a second lens element having positive refractive power and convex object-side and image-side surfaces; a third lens element having negative refractive power and a concave image-side surface; a fourth lens having refractive power and an object side surface being a plane; a fifth lens element having positive refractive power and a convex object-side surface; the sixth lens element has refractive power, the object side surface is convex, the image side surface is concave, and the image side surface at least has an inflection point in an off-axis range; a seventh lens having a negative refractive power. The utility model discloses effectively solve the miniaturized problem with the correction aberration of camera lens, current 7 formula camera lenses of comparison when reaching the miniaturized purpose of camera lens, have the aperture that is bigger relatively and be littleer F number to have the ability of shooing clear figure, the detail of image is abundanter.
Description
Technical Field
The utility model relates to an optical system of big light ring high analytic power, a big light ring high analytic power camera lens promptly, under the miniaturized prerequisite of assurance camera lens, traditional optical lens that compares have bigger clear aperture, further promote the analytic power of camera lens.
Background
In recent years, with the rapid development of mobile phone camera chips, the mobile phone camera chips are smaller in size and more in integrated pixels, so that a mobile phone lens can have the capability of shooting clear images. The higher the integration degree of the mobile phone camera chip, the higher the resolution and the larger aperture of the lens module of the camera lens of the mobile phone are required to match the chip. Therefore, the mobile phone lens is also a lens from the first 3 lens sheets to the current 7 and 8 lens sheets, and the detail richness of the image shot by the lens is greatly improved. The camera lens with the large aperture can enhance the shooting capability of the camera lens in a dark environment. However, the 7-piece mobile phone camera lens with a large aperture has a relatively large volume, aberration needs to be improved, and photographing quality needs to be improved.
Disclosure of Invention
The utility model aims at providing a dispose reasonable big light ring high resolution power camera lens, effectively solve the miniaturized and problem of revising the aberration of camera lens, current 7 formula camera lenses of comparison when reaching the miniaturized purpose of camera lens, have the light ring that is bigger relatively and be littleer F number to have the ability of shooing clear figure, the detail of image is abundanter.
The technical scheme of the utility model is that:
the technical key points of the large-aperture high-resolution lens are that the large-aperture high-resolution lens sequentially comprises the following components from an object side to an image side along an optical axis: a first lens element having positive refractive power, a convex object-side surface and a concave image-side surface; a second lens element having positive refractive power and convex object-side and image-side surfaces; a third lens element having negative refractive power and a concave image-side surface; a fourth lens having refractive power and an object side surface being a plane; a fifth lens element having positive refractive power and a convex object-side surface; the sixth lens element has refractive power, the object side surface is convex, the image side surface is concave, and the image side surface at least has an inflection point in an off-axis range; a seventh lens having negative refractive power; meanwhile, the large-aperture high-resolution lens further satisfies the following relational expression:
CT13/F13<0.3
-0.77<R6/F3<-0.45
TTL/IMA<1.5
wherein CT13 is the on-axis distance from the object-side surface of the first lens to the image-side surface of the third lens; f13 is the effective focal length of the combination of the first lens, the second lens and the third lens; r6 is the radius of curvature of the image-side surface of the third lens; f3 is the effective focal length of the third lens; TTL is the total optical height of the lens; IMA is the half image height of the lens.
The large-aperture high-resolution lens further satisfies the following relational expression:
1.0<(R1+R2)/F1<1.5
wherein R1 is the radius of curvature of the object-side surface of the first lens; r2 is the radius of curvature of the image-side surface of the first lens; f1 is the effective focal length of the first lens. After the conditions are met, the resolving power of the lens can be effectively improved, and the richness of the details of the shot image of the lens is improved.
The large-aperture high-resolution lens further satisfies the following relational expression:
-0.4<(R3+R4)/(R3-R4)
wherein R3 is the radius of curvature of the object-side surface of the second lens; r4 is the radius of curvature of the image-side surface of the second lens. After the conditions are met, the lens can effectively arrange and optimize light rays entering the lens by adjusting the shape of the lens, and the influence of distortion on the lens is reduced.
The large-aperture high-resolution lens further satisfies the following relational expression:
1.0<(F1+F2+F3)/F13<1.3
wherein F1 is the effective focal length of the first lens; f2 is the effective focal length of the second lens; f3 is the effective focal length of the third head lens; f13 is F13 is the effective focal length of the combination of the first lens, the second lens and the third lens. The lens satisfying the above conditions can reduce the size of the lens and enhance the performance of the marginal field of view of the lens.
The large-aperture high-resolution lens further satisfies the following relational expression:
1.6<Nd4<1.7
where Nd4 is the refractive index of the fourth lens. The lens meeting the conditions can effectively reduce the influence of astigmatism on the lens.
The large-aperture high-resolution lens further satisfies the following relational expression:
(CT5)/(ET5)<2.2
wherein CT5 is the optic axis center lens thickness of the fifth lens element, and ET5 is the edge lens thickness of the fifth lens element. After the conditions are met, the shape of the fifth lens is more uniform, and the lens is favorable for producing and assembling the lens.
The large-aperture high-resolution lens further satisfies the following relational expression:
YC61/SD62<0.5
YC61 is the distance from the inflection point of the object side surface of the sixth lens to the optical axis; SD62 is the effective clear aperture of the image side surface of the sixth lens. After the conditions are met, the lens can effectively improve the image of astigmatism and effectively optimize the light rays of the marginal field of view.
The large-aperture high-resolution lens further satisfies the following relational expression:
-0.3<YC72/F7<0
YC72 is the distance from the inflection point of the image side surface of the seventh lens to the optical axis; f7 is the effective focal length of the seventh lens. After the above conditions are satisfied, the distortion of the lens can be corrected, so that the lens can present a clear image.
In the large-aperture high-resolution lens, the diaphragm is located at the object side of the first lens or between the first lens and the second lens, and the clear aperture of the lens satisfies the following relation:
FNO<1.52
wherein FNO is F number of lens. The smaller the F-number after the condition is satisfied, the larger the aperture with respect to the lens.
In the large-aperture high-resolution lens, the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are aspheric lenses, wherein aspheric coefficients satisfy the following equation:
Z＝cy2/[1+{1－(1+k)c2y2}+1/2]+A4y4+A6y6+A8y8+A10y10+A12y12+A14y14+A16y16
wherein Z is aspheric sagittal height, c is aspheric paraxial curvature, y is lens caliber, k is cone coefficient, A4Is a 4-order aspheric coefficient, A6Is a 6-degree aspheric surface coefficient, A8Is an 8 th order aspheric surface coefficient, A10Is a 10 th order aspheric surface coefficient, A12Is a 12 th order aspheric surface coefficient, A14Is a 14 th order aspheric coefficient, A16Is a 16-degree aspheric coefficient.
The utility model has the advantages that:
through the rational design and the configuration to seven lenses, realize the characteristics of the miniaturization and the big light ring of camera lens to through the lens radius in the middle of the adjustment camera lens and the focus of lens, realize less aberration to the influence of camera lens, effectively promote the analytic ability of camera lens, let the image that the camera lens was shot more clear.
Drawings
Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments when taken in conjunction with the accompanying drawings.
Fig. 1 shows a schematic structural diagram of an optical lens according to embodiment 1 of the present application;
fig. 2A shows the MTF curve of the optical lens in embodiment 1, where the curve shown in the figure is the MTF of the lens at different frequencies (i.e. the abscissa in the figure is frequency, and the ordinate is the value of MTF), such curve can more accurately reflect the resolving power of the lens;
fig. 2B shows the astigmatism curves of the optical lens in embodiment 1, where the curves are shown in the figure, where the astigmatism curves of the lens at different image heights (i.e. the abscissa in the figure is the offset, and the ordinate is the image height of the lens), such curves can more accurately reflect the magnitude of the astigmatism affected by the lens;
fig. 2C shows the distortion curve of the optical lens in embodiment 1, where the curve is given in the figure as the distortion condition of the lens at different image heights (i.e. the abscissa in the figure is the distortion magnitude, and the ordinate is the image height of the lens), such curve can more accurately reflect the lens distortion magnitude;
fig. 3 is a schematic structural diagram showing an optical lens according to embodiment 2 of the present application;
fig. 4A shows an MTF curve of the optical lens of embodiment 2;
fig. 4B shows an astigmatism curve of the optical lens of embodiment 2;
fig. 4C shows a distortion curve of the optical lens of embodiment 2;
fig. 5 is a schematic structural diagram showing an optical lens according to embodiment 3 of the present application;
fig. 6A shows an MTF curve of the optical lens of embodiment 3;
fig. 6B shows an astigmatism curve of the optical lens of embodiment 3;
fig. 6C shows a distortion curve of the optical lens of embodiment 3.
In the figure: p1, a first lens, p2, a second lens, p3, a third lens, p4, a fourth lens, P5., a fifth lens, p6, a sixth lens, p7, a seventh lens, a stop, a IR. filter, ima, an image plane;
1. the lens system comprises a first lens, an object side surface, a second lens, an image side surface, a third lens, an object side surface, a fourth lens, an image side surface, a fifth lens, an object side surface, a sixth lens, an object side surface, a seventh lens, a sixth lens, a seventh lens.
Detailed Description
Example 1
As shown in fig. 1, the large aperture high resolution lens includes, in order from an object side to an image side along an optical axis: a first lens element P1 having positive refractive power and having a convex object-side surface and a concave image-side surface; a second lens element P2 having positive refractive power and convex object-side and image-side surfaces; a third lens element P3 having negative refractive power and a convex object-side surface and a concave image-side surface; a fourth lens element P4 having negative refractive power and having a planar object-side surface and a concave image-side surface at the paraxial region; a fifth lens element P5 having positive refractive power and having a convex object-side surface and a concave image-side surface at the paraxial region; a sixth lens element P6 having positive refractive power, a convex object-side surface, a concave image-side surface, and at least one inflection point on the image-side surface in an off-axis range; and a seventh lens element P7, having negative refractive power, with an object-side surface convex at the paraxial region and an image-side surface concave at the paraxial region. The STOP is disposed on the object side of the first lens. The incident light passes through each lens surface and the filter IR in sequence and is finally imaged on the imaging plane IMA.
In this embodiment, the large-aperture high-resolution lens simultaneously satisfies the following relation:
CT13/F13<0.3
-0.77<R6/F3<-0.45
TTL/IMA<1.5
1.0<(R1+R2)/F1<1.5
-0.4<(R3+R4)/(R3-R4)
1.0<(F1+F2+F3)/F13<1.3
1.6<Nd4<1.7
(CT5)/(ET5)<2.2
YC61/SD62<0.5
-0.3<YC72/F7<0
FNO<1.52
wherein CT13 is the on-axis distance (in millimeters) from the object-side surface of the first lens to the image-side surface of the third lens; CT5 is the optic axis center lens thickness of the fifth lens; ET5 is the edge optic thickness of the fifth lens; f1 is the effective focal length (in millimeters) of the first lens; f2 is the effective focal length of the second lens; f3 is the effective focal length of the third lens; f13 is the effective focal length of the combination of the first lens, the second lens and the third lens; f7 is the effective focal length of the seventh lens; r1 is the radius of curvature (in millimeters) of the object-side surface of the first lens; r2 is the radius of curvature of the image-side surface of the first lens; r3 is the radius of curvature of the object-side surface of the second lens; r4 is the radius of curvature of the image-side surface of the second lens; r6 is the radius of curvature of the image-side surface of the third lens; TTL is the total optical height (in millimeters) of the lens; IMA is half the image height (in millimeters) imaged by the lens; nd4 is the refractive index of the fourth lens; YC61 is the distance (in millimeters) from the inflection point of the object-side surface of the sixth lens to the optical axis; YC72 is the distance (in mm) from the inflection point of the image-side surface of the seventh lens element to the optical axis; SD62 is the effective clear aperture (in millimeters) of the image-side surface of the sixth lens; FNO is F number of lens.
The first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are all aspheric lenses, wherein aspheric coefficients meet the following equation:
Z＝cy2/[1+{1－(1+k)c2y2}+1/2]+A4y4+A6y6+A8y8+A10y10+A12y12+A14y14+A16y16
wherein Z is aspheric sagittal height, c is aspheric paraxial curvature, y is lens caliber, k is cone coefficient, A4Is a 4-order aspheric coefficient, A6Is a 6-degree aspheric surface coefficient, A8Is an 8 th order aspheric surface coefficient, A10Is a 10 th order aspheric surface coefficient, A12Is a 12 th order aspheric surface coefficient, A14Is a 14 th order aspheric coefficient, A16Is a 16-degree aspheric coefficient.
Table one shows the surface type, radius of curvature, thickness, and material of each lens of the optical lens of example 1. Wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
The design parameters of the lens assembly of the present embodiment refer to the following table:
watch 1 (a)
Watch 1 (b)
In this embodiment, the lens meets the requirements of the above relation, and the specific parameters are shown in the following table:
watch 1 (c)
According to the table one (a), the table one (b) and fig. 1, the lens shape and each attribute of the lens of the current embodiment are clearly shown, which illustrates that the current embodiment realizes the miniaturization of the lens and has the characteristic of a larger aperture by adjusting the shape and the interval of the lens.
As shown clearly in table (c) and the description of the astigmatism curve in fig. 2A, after the lens meets the requirements of the claims, the MTF curve of the lens decreases more smoothly, which indicates that the lens has high resolution capability, and the captured image is clearer.
As shown clearly in table (c) and the description of the astigmatism curves in fig. 2B, the astigmatism curves of the lens are gathered after the lens meets the requirements of the claims, which indicates that the lens has good capability of improving astigmatism.
As shown clearly in the distortion curve in table (C) and fig. 2C, after the lens meets the requirements of the claims, the distortion curve of the lens is less than 2.5% and the pitch is increased, which indicates that the lens has a good capability of improving the distortion of the lens.
According to the information, the embodiment can realize the miniaturization of the lens, effectively improve the analysis capability of the lens, reduce the influence of distortion and chromatic aberration and enable the lens to present a clearer image.
Example 2
As shown in fig. 3, the large aperture high resolution lens includes, in order from an object side to an image side along an optical axis: a first lens element P1 having positive refractive power and having a convex object-side surface and a concave image-side surface; a second lens element P2 having positive refractive power and convex object-side and image-side surfaces; a third lens element P3 having negative refractive power and a convex object-side surface and a concave image-side surface; a fourth lens element P4 having negative refractive power and having a planar object-side surface and a concave image-side surface at the paraxial region; a fifth lens element P5 having positive refractive power and having a convex object-side surface and a concave image-side surface at the paraxial region; a sixth lens element P6 having positive refractive power, a convex object-side surface, a concave image-side surface, and at least one inflection point on the image-side surface in an off-axis range; and a seventh lens element P7, having negative refractive power, with an object-side surface convex at the paraxial region and an image-side surface concave at the paraxial region. The STOP is disposed between the first lens P1 and the second lens P2. The incident light passes through each lens surface and the filter IR in sequence and is finally imaged on the imaging plane IMA.
Table two shows the surface type, radius of curvature, thickness, and material of each lens of the optical lens of example 2. Wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
In this embodiment, the specific design parameters refer to the following table:
watch two (a)
| Lens and lens assembly | Flour mark | Surface type | Radius of curvature | Thickness of | Material Property (Nd: Vd) |
| Object plane (OBJ) | | ||||
| P1 | |||||
| 1 | Aspherical surface | 3.843 | 0.95 | 1.5445；55.987 | |
| 2 | Aspherical surface | 9.467 | 0.30 | ||
| Diaphragm (Stop) | Spherical surface | INF | 0.00 | ||
| |
3 | Aspherical surface | 7.526 | 0.97 | 1.5445；55.987 |
| 4 | Aspherical surface | -14.369 | 0.04 | ||
| |
5 | Aspherical surface | 29.067 | 0.24 | 1.6612；20.354 |
| 6 | Aspherical surface | 5.305 | 0.82 | ||
| |
7 | Aspherical surface | INF | 0.67 | 1.6612；20.354 |
| 8 | Aspherical surface | 23.207 | 0.42 | ||
| P5 | 9 | Aspherical surface | 5.036 | 0.63 | 1.5445；55.987 |
| 10 | Aspherical surface | 19.777 | 0.52 | ||
| |
11 | Aspherical surface | 3.695 | 0.68 | 1.6355；23.972 |
| 12 | Aspherical surface | 4.249 | 0.88 | ||
| |
13 | Aspherical surface | 6.735 | 0.54 | 1.535；55.7 |
| 14 | Aspherical surface | 2.107 | 0.78 | ||
| P8 | 15 | Spherical surface | INF | 0.21 | BK7_SCHOTT |
| 16 | Spherical surface | INF | 0.12 | ||
| Image plane (IMA) |
Watch two (b)
In this embodiment, the lens meets the requirements of the above relation, and the specific parameters are shown in the following table:
watch two (c)
According to the second table (a), the second table (b) and fig. 3, the shape of the lens and the attributes of the lens of the current embodiment are clearly shown, which illustrates that the current embodiment realizes the miniaturization of the lens and has the characteristic of a larger aperture by adjusting the shape and the interval of the lens.
As shown clearly by the MTF curves in table two (c) and fig. 4A, after the lens meets the requirements of the claims, the MTF curve of the lens decreases more smoothly, which indicates that the lens has higher resolution capability and the captured image is clearer.
As shown clearly in table two (c) and the description of the astigmatism curves in fig. 4B, the astigmatism curves of the lens are gathered after the lens meets the requirements of the claims, which indicates that the lens has good capability of improving astigmatism.
As shown clearly in the distortion curve in table two (C) and fig. 4C, after the lens meets the requirements of the claims, the distortion curve of the lens is less than 2.5% and the pitch is increased progressively, which indicates that the lens has a good capability of improving the distortion of the lens.
According to the information, the embodiment can realize the miniaturization of the lens, effectively improve the analysis capability of the lens, reduce the influence of distortion and chromatic aberration and enable the lens to present a clearer image.
Example 3
As shown in fig. 5, the large aperture high resolution lens includes, in order from an object side to an image side along an optical axis: a first lens element P1 having positive refractive power and having a convex object-side surface and a concave image-side surface; a second lens element P2 having positive refractive power and convex object-side and image-side surfaces; a third lens element P3 having negative refractive power and a convex object-side surface and a concave image-side surface; a fourth lens element P4 having negative refractive power and having a planar object-side surface and a concave image-side surface at the paraxial region; a fifth lens element P5 having positive refractive power and convex object-side and image-side surfaces; a sixth lens element P6 having negative refractive power, a convex object-side surface, a concave image-side surface, and at least one inflection point on the image-side surface in an off-axis range; and a seventh lens element P7, having negative refractive power, with an object-side surface convex at the paraxial region and an image-side surface concave at the paraxial region. The STOP is disposed between the first lens P1 and the second lens P2. The incident light passes through each lens surface and the filter IR in sequence and is finally imaged on the imaging plane IMA.
Table three shows the surface type, radius of curvature, thickness, and material of each lens of the optical lens of example 3. Wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
In this embodiment, the specific design parameters refer to the following table:
watch III (a)
| Lens | Flour mark | Surface type | Radius of curvature | Thickness of | Material Property (Nd: Vd) |
| Object plane (OBJ) | | ||||
| P1 | |||||
| 1 | Aspherical surface | 3.813 | 0.87 | 1.5445；55.987 | |
| 2 | Aspherical surface | 8.690 | 0.29 | ||
| Diaphragm (Stop) | Spherical surface | INF | -0.01 | ||
| |
3 | Aspherical surface | 6.833 | 1.01 | 1.5445；55.987 |
| 4 | Aspherical surface | -15.183 | 0.04 | ||
| |
5 | Aspherical surface | 37.775 | 0.27 | 1.6612；20.354 |
| 6 | Aspherical surface | 5.341 | 0.79 | ||
| |
7 | Aspherical surface | INF | 0.71 | 1.6355；23.972 |
| 8 | Aspherical surface | 59.016 | 0.55 | ||
| P5 | 9 | Aspherical surface | 7.780 | 0.67 | 1.5445；55.987 |
| 10 | Aspherical surface | -37.419 | 0.38 | ||
| |
11 | Aspherical surface | 3.877 | 0.59 | 1.6355；23.972 |
| 12 | Aspherical surface | 3.627 | 0.91 | ||
| |
13 | Aspherical surface | 4.388 | 0.60 | 1.535；55.7 |
| 14 | Aspherical surface | 4.243 | 0.78 | ||
| P8 | 15 | Spherical surface | INF | 0.21 | BK7_SCHOTT |
| 16 | Spherical surface | INF | 0.11 | ||
| Image plane (IMA) |
Watch III (b)
In this embodiment, the lens meets the requirements of the above relation, and the specific parameters are shown in the following table:
watch III (c)
According to table three (a), table three (b) and fig. 5, the shape of the lens and the attributes of the lens of the current embodiment are clearly shown, which illustrates that the current embodiment realizes the miniaturization of the lens and has the characteristic of a larger aperture by adjusting the shape and the interval of the lens.
As shown clearly in the description of the astigmatism curves in table three (c) and fig. 6A, after the lens meets the requirements of the claims, the MTF curve of the lens decreases more smoothly, which indicates that the lens has high resolution capability, and the captured image is clearer.
As shown clearly in the description of the astigmatism curves in table three (c) and fig. 6B, the astigmatism curves of the lens are gathered after the lens meets the requirements of the claims, which indicates that the lens has good capability of improving astigmatism.
It is clearly shown from the distortion curve in table three (C) and fig. 6C that after the lens meets the requirements of the claims, the distortion curve of the lens is less than 2.5% and the pitch is increased gradually, which indicates that the lens has a good capability of improving the distortion of the lens.
According to the information, the embodiment can realize the miniaturization of the lens, effectively improve the analysis capability of the lens, reduce the influence of distortion and chromatic aberration and enable the lens to present a clearer image.
Claims (9)
1. A large-aperture high-resolution lens, comprising, in order from an object side to an image side along an optical axis: a first lens element having positive refractive power, a convex object-side surface and a concave image-side surface; a second lens element having positive refractive power and convex object-side and image-side surfaces; a third lens element having negative refractive power and a concave image-side surface; a fourth lens having refractive power and an object side surface being a plane; a fifth lens element having positive refractive power and a convex object-side surface; the sixth lens element has refractive power, the object side surface is convex, the image side surface is concave, and the image side surface at least has an inflection point in an off-axis range; a seventh lens having negative refractive power; meanwhile, the large-aperture high-resolution lens further satisfies the following relational expression:
CT13/F13<0.3
-0.77<R6/F3<-0.45
TTL/IMA<1.5
wherein CT13 is the on-axis distance from the object-side surface of the first lens to the image-side surface of the third lens; f13 is the effective focal length of the combination of the first lens, the second lens and the third lens; r6 is the radius of curvature of the image-side surface of the third lens; f3 is the effective focal length of the third lens; TTL is the total optical height of the lens; IMA is the half image height of the lens.
2. The large aperture high resolution lens according to claim 1, further satisfying the following relation:
1.0<(R1+R2)/F1<1.5
wherein R1 is the radius of curvature of the object-side surface of the first lens; r2 is the radius of curvature of the image-side surface of the first lens; f1 is the effective focal length of the first lens.
3. The large aperture high resolution lens according to claim 1, further satisfying the following relation:
-0.4<(R3+R4)/(R3-R4)
wherein R3 is the radius of curvature of the object-side surface of the second lens; r4 is the radius of curvature of the image-side surface of the second lens.
4. The large aperture high resolution lens according to claim 1, further satisfying the following relation:
1.0<(F1+F2+F3)/F13<1.3
wherein F1 is the effective focal length of the first lens; f2 is the effective focal length of the second lens; f3 is the effective focal length of the third head lens; f13 is F13 is the effective focal length of the combination of the first lens, the second lens and the third lens.
5. The large aperture high resolution lens according to claim 1, further satisfying the following relation:
1.6<Nd4<1.7
where Nd4 is the refractive index of the fourth lens.
6. The large aperture high resolution lens according to claim 1, further satisfying the following relation:
(CT5)/(ET5)<2.2
wherein CT5 is the optic axis center lens thickness of the fifth lens element, and ET5 is the edge lens thickness of the fifth lens element.
7. The large aperture high resolution lens according to claim 1, further satisfying the following relation:
YC61/SD62<0.5
YC61 is the distance from the inflection point of the object side surface of the sixth lens to the optical axis; SD62 is the effective clear aperture of the image side surface of the sixth lens.
8. The large aperture high resolution lens according to claim 1, further satisfying the following relation:
-0.3<YC72/F7<0
YC72 is the distance from the inflection point of the image side surface of the seventh lens to the optical axis; f7 is the effective focal length of the seventh lens.
9. The large aperture high resolution lens according to claim 1, wherein the stop is located on the object side of the first lens or between the first lens and the second lens, and the clear aperture of the lens satisfies the following relation:
FNO<1.52
wherein FNO is F number of lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022770081.7U CN213633970U (en) | 2020-11-26 | 2020-11-26 | Large-aperture high-resolution lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022770081.7U CN213633970U (en) | 2020-11-26 | 2020-11-26 | Large-aperture high-resolution lens |
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| Publication Number | Publication Date |
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| CN213633970U true CN213633970U (en) | 2021-07-06 |
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| CN202022770081.7U Active CN213633970U (en) | 2020-11-26 | 2020-11-26 | Large-aperture high-resolution lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112346216A (en) * | 2020-11-26 | 2021-02-09 | 辽宁中蓝光电科技有限公司 | Large-aperture high-resolution lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112346216A (en) * | 2020-11-26 | 2021-02-09 | 辽宁中蓝光电科技有限公司 | Large-aperture high-resolution lens |
| CN112346216B (en) * | 2020-11-26 | 2024-07-16 | 辽宁中蓝光电科技有限公司 | Large-aperture high-resolution lens |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Large Aperture High Resolution Lens Effective date of registration: 20220929 Granted publication date: 20210706 Pledgee: China Construction Bank Corporation Panjin branch Pledgor: Liaoning Zhonglan Photoelectric Technology Co.,Ltd. Registration number: Y2022210000157 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |