Camera lens

A camera lens and lens technology, applied in the field of camera lens, can solve the problems of optical zoom and high image quality being difficult to achieve at the same time

Pending Publication Date: 2022-03-01
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a camera lens to solve the problem that optical zoom and high image quality are difficult to realize simultaneously in the camera lens in the prior art

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0071] Such as Figure 1 to Figure 42 As shown, the camera lens includes a front lens group and a rear lens group in sequence from the subject side to the imaging side; the front lens group includes a first lens, a second lens and a third lens with positive refractive power; the rear lens group The group includes a fourth lens whose surface close to the imaging side is convex and a fifth lens whose surface close to the imaging side is convex; wherein, the surface of the first lens near the subject side of the camera lens in the macro configuration is to the imaging lens The on-axis distance TTL1 of the surface and the effective focal length f of the camera lens satisfy: TTL1 / f<1.3; the effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens satisfy: 0

[0072] Preferably, 0.3

[0073] By reasonably distributing the power and surface shape of each lens in the front group lens group and the rear group lens group, i...

Embodiment 2

[0092] Such as Figure 1 to Figure 42 As shown, the camera lens includes a front lens group and a rear lens group in sequence from the subject side to the imaging side; the front lens group includes a first lens, a second lens and a third lens with positive refractive power; the rear lens group The group includes a fourth lens whose surface near the imaging side is a convex surface and a fifth lens whose surface near the imaging side is a convex surface; wherein, the effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens satisfy: 0

[0093] Preferably, 0.3

[0094] By reasonably distributing the power and surface shape of each lens in the front group lens group and the rear group lens group, it can effectively avoid lens sensitivity problems caused by excessive concentration of power, and can also effectively balance spherical aberration, Chromatic abe...

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PUM

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Abstract

The invention provides a camera lens. The pick-up lens sequentially comprises a front lens group and a rear lens group from a shot object side to an imaging side, the front lens group comprises a first lens, a second lens with positive focal power and a third lens with positive focal power; the rear lens group comprises a fourth lens of which the surface close to the imaging side is a convex surface and a fifth lens of which the surface close to the imaging side is a convex surface; wherein the distance TTL1 on the axis from the surface, close to the shot object side, of the first lens of the camera lens in the macro configuration to the imaging surface and the effective focal length f of the camera lens meet the following condition: TTL1/flt; 1.3, 2, 3; the effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens meet the condition of 0 lt; f2/f4lt; and 1.0. According to the invention, the problem that optical zooming and high image quality are difficult to realize at the same time in a camera lens in the prior art is solved.

Description

technical field [0001] The present invention relates to the technical field of optical imaging equipment, in particular to a camera lens. Background technique [0002] With the development of science and technology and the progress of society, portable electronic devices are becoming more and more popular among the public, and there are various types of portable electronic devices, such as smart phones and tablet computers. At present, people have higher and higher requirements for the camera capabilities and various performances of smartphones and tablet computers. Not only are the electronic devices required to have basic camera functions, but also the electronic devices are required to be able to achieve optical zoom and have better night vision. Camera capability, background blur and other functions. In the prior art, there is provided a camera lens applied to portable electronic devices, but the picture quality of the camera lens in a relatively dark environment is not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/009G02B13/18
Inventor 柯万雨徐武超戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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