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Optical lens

An optical lens and lens technology, applied in the field of optical lenses, can solve the problems of low molding quality, low measurement accuracy, small aperture number, etc., and achieve the effect of large aperture imaging quality, good applicability, and reduced size

Active Publication Date: 2021-11-26
JIANGXI LIANYI OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, optical lenses generally have technical defects such as low pixels, small aperture number, low measurement accuracy, and low molding quality.

Method used

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Examples

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no. 1 example

[0085] Please refer to figure 1 , figure 1 It is a structural schematic diagram of the optical lens provided by the first embodiment of the present invention.

[0086] In this example, if 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 L7 along the optical axis from the object side to the image side , the eighth lens L8 and the filter G1.

[0087] The first lens L1 is a glass aspheric lens with positive refractive power, the object side S1 is convex, and the image side S2 is concave;

[0088] The second lens L2 is a plastic aspheric lens with negative refractive power, the object side S3 is convex, and the image side S4 is concave;

[0089] The third lens L3 is a plastic aspheric lens with positive refractive power, the object side S5 is convex at the near optical axis, and the image side S6 is concave at the near optical axis;

[0090] The ...

no. 2 example

[0107] Please refer to Figure 6 , Figure 6 It is a schematic structural diagram of the optical lens provided by the second embodiment of the present invention.

[0108] In this example, if Figure 6 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 L7 along the optical axis from the object side to the image side , the eighth lens L8 and the filter G1.

[0109] The first lens L1 is a glass aspheric lens with positive refractive power, the object side S1 is convex, and the image side S2 is concave;

[0110] The second lens L2 is a plastic aspheric lens with negative refractive power, the object side S3 is concave at the near optical axis, and the image side S4 is concave;

[0111] The third lens L3 is a plastic aspheric lens with positive refractive power, the object side S5 is convex at the near optical axis, and the image side S6 is concave at the nea...

no. 3 example

[0129] Please refer to Figure 11 , Figure 11 It is a structural schematic diagram of the optical lens provided by the third embodiment of the present invention.

[0130] In this example, if Figure 11 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 L7 along the optical axis from the object side to the image side , the eighth lens L8 and the filter G1.

[0131] The first lens L1 is a glass aspheric lens with positive refractive power, the object side S1 is convex, and the image side S2 is concave;

[0132] The second lens L2 is a plastic aspheric lens with negative refractive power, the object side S3 is concave at the near optical axis, and the image side S4 is convex at the near optical axis;

[0133] The third lens L3 is a plastic aspheric lens with positive refractive power, the object side S5 is convex at the near optical axis, and the image sid...

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Abstract

The invention provides an optical lens. From an object side to an imaging surface, the optical lens comprises a diaphragm; a first lens, wherein the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; a second lens which has negative focal power; a third lens, wherein the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a concave surface; a fourth lens which has focal power, wherein the image side surface of the fourth lens is a concave surface; a fifth lens, wherein the object side surface of the fifth lens is a concave surface, and the image side surface of the fifth lens is a convex surface; a sixth lens, wherein the object side surface of the sixth lens is a convex surface, and the image side surface of the sixth lens is a concave surface; a seventh lens which has positive focal power; and an eighth lens, wherein the object side surface of the eighth lens is a concave surface, and the image side surface of the eighth lens is a concave surface. The optical lens meets the condition that TTL / ImgH is greater than 1.0 and less than 1.2. According to the invention, the optical lens has the advantages of high pixel, large aperture and high imaging quality.

Description

technical field [0001] The invention relates to the technical field of lens imaging, in particular to an optical lens. Background technique [0002] At present, the camera lens has become the standard configuration of electronic equipment (such as smart phones and cameras), and the camera lens has even become the first index considered by consumers when purchasing electronic equipment. In recent years, with the continuous development of the design level and manufacturing and processing technology, the camera lens is constantly developing towards the direction of small size, light weight and high performance. [0003] Among them, the more high-end mobile phones have higher pixels, and the pixel size of the chip matched with the camera with higher pixels is getting smaller and smaller, and the information obtained by taking photos increases. [0004] However, at present, optical lenses generally have technical defects such as low pixels, small aperture number, low measurement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
Inventor 章彬炜王义龙曾昊杰曾吉勇
Owner JIANGXI LIANYI OPTICS CO LTD
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