optical lens

An optical lens and lens technology, applied in the field of optical lens, can solve problems such as discomfort, dizziness of human eyes, picture deformation, etc., and achieve the effects of small chief ray angle, high relative illuminance, and small distortion

Active Publication Date: 2021-10-15
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, if the lens distortion is too large and the picture distortion is severe, it will cause dizziness to the human eye and cause discomfort.

Method used

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  • optical lens
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] 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.

[0070] Such as figure 1 As shown, the optical lens sequentially includes a first lens L1 , a second lens L2 , a third lens L3 , a fourth lens L4 and a fifth lens L5 along the optical axis from the object side to the imaging side.

[0071] 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.

[0072] 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.

[0073] The third lens L3 is a meniscus lens with negative refractive power, the object side S6 is convex, and the image side S7 is concave.

[0074] The fourth lens L4 is a plano-convex lens with positive refractive power, ...

Embodiment 2

[0092] 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.

[0093] Such as figure 2 As shown, the optical lens sequentially includes a first lens L1 , a second lens L2 , a third lens L3 , a fourth lens L4 and a fifth lens L5 along the optical axis from the object side to the imaging side.

[0094] 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.

[0095] 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.

[0096] The third lens L3 is a meniscus lens with negative refractive power, the objec...

Embodiment 3

[0111] 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.

[0112] Such as image 3 As shown, the optical lens sequentially includes a first lens L1 , a second lens L2 , a third lens L3 , a fourth lens L4 and a fifth lens L5 along the optical axis from the object side to the imaging side.

[0113] 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.

[0114] 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.

[0115] The third lens L3 is a meniscus lens with negative refractive power, the object...

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PUM

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Abstract

The present application discloses an optical lens, which may sequentially include a first lens, a second lens, a third lens, a fourth lens and a fifth lens along the optical axis from the object side to the image side. Wherein, the first lens can have positive refractive power, its object side is convex, and the image side is concave; the second lens can have negative refractive power, its object side is convex, and the image side is concave; the third lens can have negative optical power. and the fifth lens may have positive power, being convex on the object side and concave on the image side. According to the optical lens of the present application, at least one beneficial effect of miniaturization, small FNO, small chief ray angle, strong thermal stability, small distortion, and high relative illuminance can be realized.

Description

technical field [0001] The present application relates to an optical lens, and more particularly, the present application relates to an optical lens including five lenses. Background technique [0002] For imaging lenses, in order not to cause discomfort to the human eye, the brightness around the screen needs to be basically the same as the brightness at the center. For lenses for special applications, the relative illuminance reflects the ability of the lens to collect light from the peripheral field of view and the central field of view, such as lidar lenses. This requires the lens to have a higher relative illuminance. [0003] In addition, distortion is an important parameter of an optical lens, and its size directly affects the ability of the lens to judge the position information of an object. On the other hand, if the lens distortion is too large and the picture distortion is severe, it will cause dizziness and discomfort to the human eye. [0004] This applicatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18
Inventor 张绍鹏徐超杨佳
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
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