Optical lens

An optical lens and lens technology, applied in the field of optical lenses, can solve the problems of high stable imaging requirements, poor image quality, and rising manufacturing costs, and achieve the effects of good temperature performance, high relative illumination, and small FNO

Active Publication Date: 2020-01-03
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the amount of light entering, a small FNO lens is usually required, but the imaging quality of a small FNO lens is often not high; in order to improve the image quality, it is usually necessary to increase the number of lenses, but the corresponding increase in the size and weight of the lens is not conducive to the lens The miniaturization will lead to an increase in manufacturing costs
In addition, the image quality of some lenses for special applications will be affected by the harsh environment, so there is a high requirement for stable imaging within a large temperature range of the lens

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] 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.

[0071] like 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 and a sixth lens L6 along the optical axis from the object side to the imaging side.

[0072] 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.

[0073] 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.

[0074] 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, an...

Embodiment 2

[0090] 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.

[0091] like 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 and a sixth lens L6 along the optical axis from the object side to the imaging side.

[0092] 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.

[0093] 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.

[0094] The third lens L3 is a biconcave lens with negative refractive ...

Embodiment 3

[0108] 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.

[0109] like 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 and a sixth lens L6 along the optical axis from the object side to the imaging side.

[0110] 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.

[0111] 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.

[0112] The third lens L3 is a biconcave lens with negative refractive p...

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PUM

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Abstract

The present invention discloses an optical lens. The optical lens may include a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in sequence from an object side to an image side along an optical axis, wherein, the first lens may have a positive focal power, a convex object side surface and a concave image side surface; the second lens may have a negative focalpower, a convex object side surface and a concave image side surface; the third lens may have a negative focal power, concave object side surface and image side surface; the fourth lens may have a positive power, convex object side surface and image side surface; the fifth lens may have a positive focal power; and the sixth lens may have a negative focal power, a concave object side surface and aconvex image side surface. The optical lens of the invention can realize at least one of beneficial effects of miniaturization, small FNO, good temperature performance, low cost, and high relative illuminance.

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] At present, the application of optical lens is more and more extensive, and the requirement of lens miniaturization is also more and more prominent. In order to increase the amount of light entering, a small FNO lens is usually required, but the imaging quality of a small FNO lens is often not high; in order to improve the image quality, it is usually necessary to increase the number of lenses, but the corresponding increase in the size and weight of the lens is not conducive to the lens The miniaturization will also lead to an increase in manufacturing costs. In addition, the image quality of some lenses for special applications will be affected by the harsh environment, so there is a high requirement for the stable imaging of the lens within a large temperature range. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00
CPCG02B13/0015G02B13/006
Inventor 张俊明徐超杨佳
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
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