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Optical lens and imaging equipment

An optical lens and lens technology, applied in optics, optical components, instruments, etc., can solve the problems of unfavorable lens miniaturization, total lens length, etc., and achieve the effects of good temperature performance, low cost, and large field of view.

Active Publication Date: 2021-12-28
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Medium and long-distance imaging requires a longer focal length of the optical lens, but a longer focal length will result in a longer total length of the lens, which is not conducive to the miniaturization of the lens

Method used

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  • Optical lens and imaging equipment
  • Optical lens and imaging equipment
  • Optical lens and imaging equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] 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.

[0093] 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, a fifth lens L5, a sixth lens L6 and a seventh lens along the optical axis from the object side to the imaging side. Lens L7.

[0094] The first lens L1 is a biconcave lens with negative refractive power, and its object side S1 and image side S2 are both concave.

[0095] The second lens L2 is a biconvex lens with positive refractive power, and its object side S3 and image side S4 are both convex.

[0096] The third lens L3 is a biconcave lens with negative refractive power, and its object side S5 and image side S6 are both concave. The fourth lens L4 is a biconvex lens with positive refra...

Embodiment 2

[0110] 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.

[0111] 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, a fifth lens L5, a sixth lens L6 and a seventh lens along the optical axis from the object side to the imaging side. Lens L7.

[0112] The first lens L1 is a biconcave lens with negative refractive power, and its object side S1 and image side S2 are both concave.

[0113] The second lens L2 is a biconvex lens with positive refractive power, and its object side S3 and image side S4 are both convex.

[0114]The third lens L3 is a biconcave lens with negati...

Embodiment 3

[0127] 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.

[0128] 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, a fifth lens L5, a sixth lens L6 and a seventh lens along the optical axis from the object side to the imaging side. Lens L7.

[0129] The first lens L1 is a meniscus lens with negative refractive power, the object side S1 is convex, and the image side S2 is concave.

[0130] The second lens L2 is a meniscus lens with positive refractive power, the object side S3 is convex, and the image side S4 is concave.

[0131] The third lens L3 is a biconcave lens w...

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PUM

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Abstract

Disclosed are an optical lens and an imaging device including the optical lens. The optical lens may sequentially include a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens along the optical axis from the object side to the image side. Wherein, the first lens can have negative refractive power, and its image side is concave; the second lens can have positive refractive power, and its object side is convex; the third lens can have negative refractive power, and its object side and image side are both is concave; the fourth lens may have positive power, and its object side and image side are both convex; and the seventh lens may have positive power, and its object side is convex. The optical lens can realize at least one of beneficial effects such as high resolution, long focal length, miniaturization, large aperture, good temperature performance, large viewing angle, and low cost.

Description

technical field [0001] The present application relates to an optical lens and an imaging device including the optical lens, more particularly, the present application relates to an optical lens including seven lenses and an imaging device. Background technique [0002] With the development of science and technology and the wide application of high-tech, the auxiliary driving technology of automobiles has gradually developed and matured, and optical lenses have been more and more widely used in automobiles. [0003] Generally, the performance requirements of optical lenses for general vehicle applications are very high, while the performance requirements for optical lenses used in autonomous driving are more stringent. It needs to have relatively large advantages in detection distance, resolution and low-light performance. [0004] Medium and long-distance imaging requires a longer focal length of the optical lens, but a longer focal length will result in a longer total lengt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/06
CPCG02B13/00G02B13/06G02B13/02G02B13/16G02B27/0081G02B9/64
Inventor 张野
Owner NINGBO SUNNY AUTOMOTIVE OPTECH