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Optical lens

An optical lens and lens technology, applied in the field of optical lens, can solve the problems affecting the miniaturization of the lens, and achieve the effect of good imaging effect, low sensitivity and high production yield

Active Publication Date: 2019-11-22
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to achieve high resolution of the lens, it can usually be achieved by increasing the number of lenses, but this will affect the miniaturization of the lens

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 from the object side to the imaging side along the optical axis. Lens L7.

[0067] The first lens L1 is a meniscus lens with negative refractive power, the object side is convex, and the image side is concave. The first lens L1 is an aspherical lens. Both the object side and the image side of the first lens are aspherical.

[0068] The second lens L2 has negative refractive power, its object side is concave, and its image side is concave.

[0069] The third lens L3 has positive refractive power, its object side is convex, and its image s...

Embodiment 2

[0089] 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.

[0090] 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 from the object side to the imaging side along the optical axis. Lens L7.

[0091] The first lens L1 is a meniscus lens with negative refractive power, the object side is convex, and the image side is concave. The first lens L1 is an aspherical lens. Both the object side and the image side of the first lens are aspherical.

[0092] The second lens L2 has negative refractive power, its object side is co...

Embodiment 3

[0110] 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.

[0111] 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 from the object side to the imaging side along the optical axis. Lens L7.

[0112] The first lens L1 is a meniscus lens with negative refractive power, the object side is convex, and the image side is concave. The first lens L1 is an aspherical lens. Both the object side and the image side of the first lens are aspherical.

[0113] The second lens L2 has negative refractive power, its object side is con...

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PUM

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Abstract

The invention discloses an optical lens, and 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 object side to an image side along an optical axis. The first lens is a meniscus lens with negative focal power, wherein the object side surface of the first lens is a convex surface, and the image sidesurface of the first lens is a concave surface; the second lens has negative focal power, wherein the object side surface of the second lens is a concave surface, and the image side surface is a concave surface; the third lens has positive focal power, wherein the object side surface of the third lens is a convex surface, and the image side surface is a convex surface; the fourth lens has positivefocal power, wherein the object side surface of the fourth lens is a convex surface, and the image side surface is a convex surface; the fifth lens has negative focal power, wherein the object side surface of the fifth lens is a concave surface, and the image side surface is a concave surface; the sixth lens has positive focal power, wherein the object side surface of the sixth lens is a convex surface, and the image side surface is a convex surface; the seventh lens is a meniscus lens, wherein the object side surface of the seventh lens is a convex surface, and the image side surface is a concave surface. The optical lens according to the application has the characteristics of high resolution, for example, 12M and above, miniaturization, large aperture, low cost and small CRA.

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] With the popularization of unmanned driving technology, the requirements for the pixel of the car lens as the eyes of the car are getting higher and higher. At present, the car lens with megapixels has gradually become popular, and is developing towards the trend of tens of millions of high-definition pixels. [0003] In order to achieve high resolution of the lens, it can usually be achieved by increasing the number of lenses, but this will affect the miniaturization of the lens. Moreover, in order to be used in low-light environments, the 10-megapixel lens needs a larger aperture; in order to avoid color cast when matching the 10-megapixel chip, a smaller CRA is required. [0004] Therefore, it is necessary to design a lens with high resolution and high imaging quality at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18G02B13/00
CPCG02B13/00G02B13/18
Inventor 王东方李响姚波
Owner NINGBO SUNNY AUTOMOTIVE OPTECH