Optical camera lens

An optical lens and lens technology, applied in the field of optical lens, can solve the problems of small FNO, difficulty in forming clear images of high spatial frequency objects, etc., and achieve the effects of small FNO, high relative illuminance, and strong thermal stability

Active Publication Date: 2019-07-02
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some special application lenses, in order to collect more energy, the FNO is required to be small, so it is difficult to form a clear image of high spatial frequency objects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Refer to the following figure 1 An optical lens according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of the optical lens according to Embodiment 1 of the present application is shown.

[0056] Such as figure 1 As shown, the optical lens sequentially includes a first lens L1 , a second lens L2 , a third lens L3 and a fourth lens L4 along the optical axis from the object side to the imaging side.

[0057] The first lens L1 is a meniscus lens with positive refractive power, the object side S1 is convex, and the image side S2 is concave.

[0058] The second lens L2 is a meniscus lens with negative refractive power, the object side S3 is convex, and the image side S4 is concave.

[0059] The third lens L3 is a meniscus lens with positive refractive power, the object side S6 is concave, and the image side S7 is convex.

[0060] The fourth lens L4 is a biconvex lens with positive refractive power, the object side S8 is ...

Embodiment 2

[0077] Refer to the following figure 2 An optical lens according to Embodiment 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted. figure 2 A schematic structural view of the optical lens according to Embodiment 2 of the present application is shown.

[0078] Such as figure 2 As shown, the optical lens sequentially includes a first lens L1 , a second lens L2 , a third lens L3 and a fourth lens L4 along the optical axis from the object side to the imaging side.

[0079] The first lens L1 is a meniscus lens with positive refractive power, the object side S1 is convex, and the image side S2 is concave.

[0080] The second lens L2 is a meniscus lens with negative refractive power, the object side S3 is convex, and the image side S4 is concave.

[0081] The third lens L3 is a meniscus lens with positive refractive power, the object side S6 is conca...

Embodiment 3

[0095] Refer to the following image 3 An optical lens according to Embodiment 3 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted. image 3 A schematic structural diagram of an optical lens according to Embodiment 3 of the present application is shown.

[0096] Such as image 3 As shown, the optical lens sequentially includes a first lens L1 , a second lens L2 , a third lens L3 and a fourth lens L4 along the optical axis from the object side to the imaging side.

[0097] The first lens L1 is a meniscus lens with positive refractive power, the object side S1 is convex, and the image side S2 is concave.

[0098] The second lens L2 is a meniscus lens with negative refractive power, the object side S3 is convex, and the image side S4 is concave.

[0099] The third lens L3 is a meniscus lens with positive refractive power, the object side S6 is concav...

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PUM

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Abstract

The invention discloses an optical camera lens. The optical camera lens comprises a first lens, a second lens, a third lens and a fourth lens sequentially from an object side to an image side along anoptical axis, wherein the first lens has positive focal power, the object side surface is a convex surface and the image side surface is a concave surface; the second lens has negative focal power; and both the third lens and the fourth lens have positive focal power. According to the optical camera lens disclosed in the invention, the effects of miniaturization, high resolution, small distortion, and strong thermal stability and the like can be achieved.

Description

technical field [0001] The present application relates to an optical lens, and more particularly, the present application relates to an optical lens including four lenses. Background technique [0002] With the continuous popularization and development of automatic / assisted driving systems, optical vehicle lenses, as an important part of realizing unmanned driving, have increasingly high requirements for their various performances. For some special application lenses, in order to collect more energy, the FNO is required to be small, so it is difficult to form a clear image of high spatial frequency objects. [0003] For some specific lenses, the diffuse spot is generally controlled within half of the chip pixel size, while the single pixel size on the chip is relatively large, and the limit spatial frequency is low. [0004] Therefore, it is necessary to design an optical lens with miniaturization, small distortion, small aperture FNO, high resolution, and strong thermal st...

Claims

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Application Information

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IPC IPC(8): G02B13/00
CPCG02B13/004
Inventor 徐超张绍鹏杨佳
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
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