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Camera lens

A camera lens and lens technology, applied in the field of camera lens, can solve the problem that it is difficult to balance wide-angle and macro-distance at the same time

Pending Publication Date: 2022-04-15
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 the camera lens in the prior art is difficult to take into account the wide-angle and macro-distance at the same time

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0067] Such as Figure 1 to Figure 45 As shown, the camera lens includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens along the optical axis from the light incident side to the light exit side, and the first lens has a negative refractive power; the second lens It has positive refractive power; the third lens has negative refractive power; the fourth lens has positive refractive power; the fifth lens has negative refractive power; when the object distance is 25mm, the surface of the first lens near the incident side On-axis distance to imaging surface TTL A When the distance from the object is 25mm, the axial distance BFL from the surface near the exit side of the fifth lens to the imaging surface A Satisfied between: TTL A / BFL A <3.5.

[0068] Preferably, TTL A / BFL A <3.3.

[0069] Reasonably configure the refractive power of each lens in the camera lens. When the refractive power of the first lens is negative, it is beneficial to reduce ...

Embodiment 2

[0081] Such as Figure 1 to Figure 45 As shown, the camera lens includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens along the optical axis from the light incident side to the light exit side, and the first lens has a negative refractive power; the second lens Has positive refractive power; the third lens has negative refractive power; the fourth lens has positive refractive power; the fifth lens has negative refractive power; wherein, the radius of curvature R6 of the surface near the exit side of the third lens, the third lens The radius of curvature R8 of the surface near the outgoing side of the four-lens meets the effective focal length f of the camera lens: 1.6<(R6-R8) / f<2.2.

[0082] Preferably, 1.8<(R6-R8) / f<2.1.

[0083] Reasonably configure the refractive power of each lens in the camera lens. When the refractive power of the first lens is negative, it is beneficial to reduce the inclination angle of the incident light, so as to effecti...

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Abstract

The invention provides a camera lens. The pick-up lens sequentially comprises a first lens, a second lens, a third lens and a fourth lens from a light incident side to a light emergent side along an optical axis, a second lens element with positive refractive power; a third lens element with negative refractive power; a fourth lens element with positive refractive power; a fifth lens element with negative refractive power; wherein when the object distance is 25mm, the axial distance TTLA from the surface, close to the incident side, of the first lens to the imaging surface, and when the object distance is 25mm, the axial distance BFLA from the surface, close to the emergent side, of the fifth lens to the imaging surface meet the following condition: TTLA / BFLlt; and 3.5. According to the invention, the problem that a wide angle and a micro distance of a camera lens in the prior art are difficult to consider at the same time 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 rapid development of the shooting technology of smartphones, the public has higher and higher requirements for the shooting ability of the camera lens applied on the mobile phone, and the camera lens is required to meet the various shooting needs of the public. At present, camera lenses have gradually developed from single cameras to dual cameras, triple cameras, and quadruple cameras. In the prior art, a multi-camera lens applied to a smart phone is generally equipped with a wide-angle camera to meet the shooting requirements of a large field of view. However, with the diversification of application scenarios of camera lenses on mobile phones, some users hope to meet the demand for macro shooting on the basis of wide-angle, but the existing technology is difficult to meet this demand. [0003] That...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/24G02B13/18G03B30/00
Inventor 王彦肖海东戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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