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Optical lens

An optical lens and lens technology, applied in the field of optical lens, can solve the problems affecting miniaturization and low cost, and achieve the effect of low sensitivity, low cost and high illumination

Active Publication Date: 2019-06-28
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing conventional technology can obtain high resolution by increasing the number of lenses to more than 7, but it will affect the realization of miniaturization and low cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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. The third lens L3 is a biconvex lens with positive refractive power, the object side S4 is convex, and the image side S5 is convex. Wherein, the second lens L2 and the third lens L3 are...

Embodiment 2

[0083] 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.

[0084] 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.

[0085] The first lens L1 is a biconcave lens with negative refractive power, the object side S1 is concave, and the image side S2 is concave.

[0086]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. The third lens L3 is a biconvex lens with posi...

Embodiment 3

[0098] 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.

[0099] 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.

[0100] 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.

[0101] The second lens L2 is a biconvex lens with positive refractive power, the object side S3 is convex, and the image side S4 is convex. The third lens L3 is a biconcave lens with negati...

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Abstract

The invention discloses an optical lens. The optical lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from an objectside to an image side along an optical axis. The first lens can have negative focal power; the second lens can be glued with the third lens; the fourth lens can be glued with the fifth lens; and the sixth lens can be glued with the seventh lens. According to the invention, the optical lens can achieve the effects of high illumination, miniaturization, high resolution and the like.

Description

technical field [0001] The present application relates to an optical lens, and more particularly, the present application relates to an optical lens including seven lenses. Background technique [0002] At present, vehicle-mounted lenses are widely used in vehicle-assisted driving systems to assist drivers in driving, and even autonomous driving. With the popularization of use, the requirements for high-definition images and screen comfort of vehicle-mounted lenses have become increasingly prominent, such as relative illuminance, chromatic aberration, and clarity. Among them, the relative illuminance refers to the ratio of the brightness of the peripheral screen to the brightness of the central screen, which reflects the uniformity of the screen brightness. Generally, the resolution can be improved by increasing the number of lenses to achieve high pixel requirements. In existing conventional technologies, high-resolution images can be obtained by increasing the number of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
Inventor 张野王东方姚波
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
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