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Pick-up lens

A camera lens and lens technology, applied in the field of camera lenses, can solve problems such as poor imaging quality of camera lenses, and achieve the effects of improving image quality, good overall aberration, and high imaging quality

Pending Publication Date: 2022-01-28
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 of poor imaging quality in the camera lens in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Such as Figure 1 to Figure 32As shown, the camera lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens in sequence from the light incident end to the light exit end of the camera lens, and the first lens The surface of the four lenses near the light incident end is concave; the surface of the fifth lens near the light incident end is convex, and the surface of the fifth lens near the light exit end is concave; the sixth lens has negative refractive power; the eighth lens is close to the light exit The surface of the end is concave; wherein, the distance TTL from the surface of the first lens near the light incident end to the imaging surface of the camera lens on the optical axis, and the half ImgH of the diagonal length of the effective pixel area on the imaging surface satisfy: TTL / ImgH7.5mm; the central thickness CT7 of the seventh lens on the optical axis, and the air gap T78 between th...

Embodiment 2

[0096] Such as Figure 1 to Figure 32 As shown, from the light incident end to the light exit end of the camera lens, it includes: the first lens; the second lens; the third lens; the fourth lens, the fifth lens, the sixth lens, the seventh lens; the eighth lens, The surface of the fourth lens close to the light incident end is concave; the surface of the fifth lens close to the light incident end is convex, and the surface of the fifth lens close to the light exit end is concave; the sixth lens has negative refractive power; the eighth lens is close to the light The surface of the exit end is concave; wherein, the distance TTL from the surface of the first lens near the light incident end to the imaging surface of the camera lens on the optical axis, and the half ImgH of the diagonal length of the effective pixel area on the imaging surface satisfy: TTL / ImgH< 1.3; between the combined focal length f1234 of the first lens, the second lens, the third lens and the fourth lens an...

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Abstract

The invention provides a pick-up lens. The pick-up lens sequentially comprises, from a light incident end to a light emergent end, a first lens; a second lens; a third lens; a fourth lens, wherein the surface, close to the light incident end, of the fourth lens is concave; a fifth lens, wherein the surface, close to the light incident end, of the fifth lens is convex, and the surface, close to the light emergent end, of the fifth lens is concave; a sixth lens with negative refractive power; a seventh lens; an eighth lens, wherein the surface, close to the light emergent end, of the eighth lens is concave; the distance TTL from the surface, close to the light incidence end, of the first lens to the imaging face of the camera lens on the optical axis and the half ImgH of the diagonal length of an effective pixel area on the imaging face meet the conditions that TTL / ImgH is smaller than 1.3 and ImgH is larger than 7.5 mm. The central thickness CT7 of the seventh lens on the optical axis and the air interval T78 of the seventh lens and the eighth lens on the optical axis meet the following condition: 0.5 < CT7 / T78 < 1.0. The problem that in the prior art, the pick-up lens is poor in imaging quality 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 vigorous development of portable electronic devices such as smart phones and tablet computers, different from the single or dual cameras of previous mobile phones, high-end or flagship mobile phones usually use multiple lenses together, including large image area, super wide-angle and telephoto, etc. , The combination of these higher specification lenses has greatly improved the imaging capabilities and competitive advantages of mobile phone lenses. The resolution of the large image lens is higher, and the ultra-thinness can achieve better compatibility with smart phones and meet the portability, while the traditional camera lens has been difficult to meet the above requirements. [0003] That is to say, the camera lens in the prior art has the problem of poor imaging quality. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B1/00G02B1/04
CPCG02B13/0045G02B1/00G02B1/041G03B30/00
Inventor 周进张晓彬闻人建科戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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