Optical lens

An optical lens and lens technology, applied in the field of optical lenses, can solve the problems of limited viewing angle of the lens, small viewing range of the viewing angle, etc., and achieve better optical performance, aberration correction, and large viewing angle. Effect

Active Publication Date: 2018-11-23
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The longer the focal length of the lens, the smaller the viewing range of the field of view
Therefore, in order to obtain a long focal length to detect distant objects in front of the conventional front-view lens, the field of view of the lens is usually limited

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 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.

[0046] Such as figure 1 As shown, the optical lens includes six lenses L1-L6 arranged in sequence from the object side to the imaging side along the optical axis. The first lens L1 is a meniscus lens with negative refractive power, its object side S1 is a convex surface, and its image side S2 is a concave surface; the second lens L2 is a meniscus lens with positive refractive power, its object side S3 is a concave surface, and its image side S2 is a concave surface. The side surface S4 is a convex surface; the third lens L3 is a biconcave lens with negative refractive power, and its object side S6 and image side S7 are both concave surfaces; the fourth lens L4 is a biconvex lens with positive refractive power, and its object side S7...

Embodiment 2

[0061] 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.

[0062] Such as figure 2 As shown, the optical lens includes six lenses L1-L6 arranged in sequence from the object side to the imaging side along the optical axis. The first lens L1 is a meniscus lens with negative refractive power, its object side S1 is a convex surface, and its image side S2 is a concave surface; the second lens L2 is a meniscus lens with positive refractive power, its object side S3 is a concave surface, and its image side S2 is a concave surface. The side surface S4 is a convex surface; the third lens L3 is a biconcave lens with negative refractive power, and its object side S...

Embodiment 3

[0073] Refer to the following image 3 An optical lens according to Embodiment 3 of the present application is described. image 3 A schematic structural diagram of an optical lens according to Embodiment 3 of the present application is shown.

[0074] Such as image 3 As shown, the optical lens includes six lenses L1-L6 arranged in sequence from the object side to the imaging side along the optical axis. The first lens L1 is a biconcave lens with negative refractive power, and its object side S1 and image side S2 are both concave; the second lens L2 is a meniscus lens with positive refractive power, its object side S3 is concave, and its image side S4 is a convex surface; the third lens L3 is a biconcave lens with negative refractive power, and its object side S6 and image side S7 are both concave; the fourth lens L4 is a biconvex lens with positive refractive power, its object side S7 and image side S8 Both are convex; the fifth lens L5 is a meniscus lens with negative re...

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PUM

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Abstract

The present invention discloses an optical lens. The optical lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens which are sequentially distributed from an object side to an image side along an optical axis; the first lens has negative focal power; the image side surface of the first lens is a concave surface; the second lens has positive focal power; the object side surface of the second lens is a concave surface; the image side surface of the second lens is a convex surface; the third lens and the fourth lens are cemented to form a first cemented lens; the fifth lens and the sixth lens are cemented to form a second cemented lens.

Description

technical field [0001] The present application relates to an optical lens, and more particularly, the present application relates to an optical lens including six lenses. Background technique [0002] Due to the different installation positions of vehicle lenses, the functions they focus on are different, so the requirements for lenses in different installation positions are also different. For example, the forward-looking lens needs to observe distant objects, and the focal length of the lens is required to be long enough. The longer the focal length of the lens, the smaller the viewing range of the field of view. Therefore, in order to obtain a long focal length to detect distant objects in front of a conventional forward-looking lens, the field of view of the lens is usually limited. With the advancement of science and technology, higher requirements are put forward for the front-view lens. In addition to having a longer focal length, the front-view lens needs to have a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18G02B7/02
CPCG02B7/025G02B13/0045G02B13/06G02B13/18
Inventor 王东方姚波谢前森
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
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