Optical imaging camera lens

An optical imaging lens and lens technology, applied in the field of lenses, can solve the problems of large volume, weight, distortion, large chromatic aberration, etc., and achieve the effects of good resolution, light weight and small size

Pending Publication Date: 2019-06-04
XIAMEN LEADING OPTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When applied to unmanned aerial vehicles, it is hoped that the volume and weight of the optical imaging lens will be small, so as to reduce the overall weight of the unmanned aerial vehicle and improve the endurance. fulfil requirements
[0003] In addition, a sensor with a large CRA (main angle of incidence) generally has a low c

Method used

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  • Optical imaging camera lens
  • Optical imaging camera lens
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0096] Such as Figure 6 As shown, the concave-convex surface and the refractive power of each lens in this embodiment are the same as those in the first embodiment, only the image side 22 of the second lens 2 is concave, the object side of the third lens 3 is convex, and the fifth lens The object side 51 of 5 is a plane, the image side 62 of the sixth lens 6 is a concave surface, the object side 71 of the seventh lens is a convex surface, and the optical parameters of the radius of curvature of each lens surface, lens thickness, lens aspheric coefficient and system focal length different.

[0097] The detailed optical data of this specific embodiment are shown in Table 2-1.

[0098] Detailed optical data of Table 2-1 Example 2

[0099] surface

radius of curvature

thickness

material

Refractive index

Dispersion coefficient

focal length

-

subject surface

flat

Infinity

11

first lens

21.50

2.60

Embodiment 3

[0106] Such as Figure 11 As shown, the surface concave-convex and refractive power of each lens in this embodiment are the same as those in Embodiment 1, and only the image side 22 of the second lens 2 is concave, the object side of the third lens 3 is convex, and the fifth lens The object side 51 of 5 is a plane, the object side 71 of the seventh lens is a convex surface, and the optical parameters of the radius of curvature, lens thickness, lens aspheric coefficient and system focal length of each lens surface are different.

[0107] The detailed optical data of this specific embodiment are shown in Table 3-1.

[0108] Detailed optical data of the third embodiment of table 3-1

[0109] surface

radius of curvature

thickness

material

Refractive index

Dispersion coefficient

focal length

-

subject surface

flat

Infinity

11

first lens

20.69

2.60

Glass

1.55

62.8

-8.7

12

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Abstract

The invention relates to the technical field of camera lenses and discloses an optical imaging camera lens. The optical imaging camera lens comprises lenses from a first to a seventh sequentially along an optical axis from an object side to an image side, wherein the first lens is a convexoconcave lens with negative refractive power; the second lens has negative refractive power and a convex object side surface; the third lens has positive refractive power and a convex image side surface; the fourth lens is a convexoconcave lens with positive refractive power; the fifth lens has positive refractive power and a convex image side surface; the sixth lens has negative refractive power and a convex object side surface; the seventh lens has positive refractive power and a convex image side surface; and the object side surface and the image side surface of the seventh lens are both aspherical surfaces. The optical imaging camera lens has the advantages of large main incident angle, good optical imaging quality, small volume and light weight.

Description

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Claims

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Application Information

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Owner XIAMEN LEADING OPTICS
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