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Camera lens

A camera lens and lens technology, applied in the field of camera lenses, can solve the problems of large aperture, ultra-wide-angle and high-pixels that are difficult to realize 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 the camera lens in the prior art has a large aperture, a super wide angle and a high pixel that are difficult to realize at the same time

Method used

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Embodiment 1

[0051] Such as Figure 1 to Figure 30 As shown, the camera lens includes a first lens with negative refractive power, a second lens with positive refractive power, a third lens with negative refractive power, and a lens with positive refractive power from the object side to the image side along the optical axis. The fourth eyeglass and the fifth eyeglass with negative refractive power; the object side of the first eyeglass is a concave surface; the object side of the third eyeglass is a convex surface; the object side of the fourth eyeglass is a concave surface, and the image side is a convex surface; wherein, the camera lens The effective focal length f of the camera lens and the entrance pupil diameter EPD of the camera lens meet: f / EPD<1.9; the effective focal length f of the camera lens and the maximum field of view FOV of the camera lens meet: 3.5mm<f*tan(FOV / 2) <6mm.

[0052] Preferably, 3.7mm

[0053] By rationally configuring the focal power and ...

Embodiment 2

[0065] Such as Figure 1 to Figure 30 As shown, the camera lens includes a first lens with negative refractive power, a second lens with positive refractive power, a third lens with negative refractive power, and a lens with positive refractive power from the object side to the image side along the optical axis. The fourth eyeglass and the fifth eyeglass with negative refractive power; the object side of the first eyeglass is a concave surface; the object side of the third eyeglass is a convex surface; the object side of the fourth eyeglass is a concave surface, and the image side is a convex surface; wherein, the camera lens between the effective focal length f of the camera lens and the maximum field of view FOV of the camera lens: 3.5mm<f*tan(FOV / 2)<6mm; the center thickness CT2 of the second lens on the optical axis and the edge thickness ET2 of the second lens Satisfied between: 1.5<CT2 / ET2<2.0.

[0066] Preferably, 3.7mm

[0067] Preferably, 1.6

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Abstract

The invention provides a camera lens. The pick-up lens sequentially comprises a first lens with negative focal power from an object side to an image side along an optical axis, a second lens with negative focal power, a third lens and a fourth lens from the object side to the image side, the second lens has positive focal power; the object side surface of the third lens is a convex surface; the object side surface of the fourth lens is a concave surface, and the image side surface of the fourth lens is a convex surface; the fifth lens has negative focal power; wherein the effective focal length f of the pick-up lens and the entrance pupil diameter EPD of the pick-up lens satisfy f / EPDlt; 1.9); the effective focal length f of the pick-up lens and the maximum field angle FOV of the pick-up lens satisfy 3.5 mmlt; f * tan (FOV / 2) lt; 6 mm. According to the invention, the problem that the large aperture, the ultra-wide angle and the high pixel of the camera lens in the prior art are difficult to realize 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 popularization of smart phones, people's requirements for the camera lens on the smart phone are also gradually increasing, and at the same time, the camera lens needs to meet different shooting effects. At present, mainstream manufacturers generally install multiple different types of camera lenses in mobile phones to ensure high image quality and unique shooting effects. Generally speaking. In order to meet the effect of wide field of view and large depth of field in shooting, a camera lens with ultra-wide-angle characteristics is essential; in order to meet the shooting effect of clear imaging details, a large aperture lens is required. The prior art provides a camera lens applied to a mobile phone. Although the camera lens has a large aperture, its shooting range and imaging quality cannot meet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18
Inventor 王彦徐武超肖海东戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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