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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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0095] Embodiment 2

[0096] like Image 6 As shown, the surface concavo-convex and refractive index of each lens in this embodiment and the first embodiment are the same, 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 is convex. The object side 51 of 5 is a plane, the image side 62 of the sixth lens 6 is concave, the object side 71 of the seventh lens is convex, and the optical parameters of the curvature radius, lens thickness, lens aspheric coefficient and system focal length of each lens surface different.

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

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

[0099] surface

[0100] Please refer to the following table for the detailed data of the parameters of each aspheric surface in this specific embodiment:

[0101] surface

[0102] Please refer to the numerical value of each condition...

Example Embodiment

[0105] Embodiment 3

[0106] like Figure 11 As shown, the surface concavo-convex and refractive index of each lens in this embodiment and the first embodiment are the same, 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 is convex. The object side 51 of 5 is a plane, the object side 71 of the seventh lens is convex, and the optical parameters of the curvature radius, 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] Table 3-1 Detailed optical data of Example 3

[0109] surface

[0110] Please refer to the following table for the detailed data of the parameters of each aspheric surface in this specific embodiment:

[0111] surface

[0112] Please refer to the numerical value of each conditional expression in this specific embodiment...

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PUM

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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

technical field [0001] The invention belongs to the field of lens technology, and in particular relates to a seven-piece optical imaging lens. Background technique [0002] With the continuous advancement of technology, optical imaging lenses have also developed rapidly in recent years, and are widely used in various fields such as smartphones, tablet computers, video conferencing, security monitoring, and drones. 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 cost, but because the CRA is too large, it is difficult to find a stable all-glass optical imaging lens to match; the existing large CAR lens has poor resolution and large chromatic aberration , the chromatic aberration reduction degree ...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
Inventor 上官秋和
Owner XIAMEN LEADING OPTICS
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