Camera lens
A camera lens and lens technology, which is applied in the field of camera lenses, can solve the problems that the large image surface and ultra-thinness are difficult to realize at the same time
Pending Publication Date: 2022-07-22
ZHEJIANG SUNNY OPTICAL CO LTD
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[0004] The main purpose of the present invention is to provide a camera lens to solve the problems that the camera lens in the prior art has a large image surface, a large aperture and ultra-thinness that are difficult to realize at the same time
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[0031] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0033]In the present invention, unless otherwise stated, the directional words used such as "upper, lower, top, bottom" are usually for the directions shown in the drawings, or for the components themselves in vertical, In terms of vertical or gravitational direction; similarly, for the convenience of understanding and description, "inner and outer" refers to the inner and outer relative to the contour of each component itself, but the ...
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The invention provides a camera lens. The camera lens comprises a first lens with positive refractive power, the surface close to the incident side of the first lens is a convex surface, and the surface close to the emergent side of the first lens is a concave surface; the second lens has negative refractive power, the surface, close to the incident side, of the second lens is a convex surface, and the surface, close to the emergent side, of the second lens is a concave surface. The third lens has positive refractive power, the surface, close to the incident side, of the third lens is a convex surface, and the surface, close to the emergent side, of the third lens is a convex surface; the fourth lens has negative refractive power, the surface, close to the incident side, of the fourth lens is a concave surface, and the surface, close to the emergent side, of the fourth lens is a concave surface; a fifth lens element with positive refractive power; the on-axis distance TTL from the surface, close to the incident side, of the first lens to the imaging surface and the half ImgH of the diagonal length of an effective pixel area on the imaging surface meet the following condition: TTL / ImgHlt; 1.3, 2, 3; the air interval T34 between the third lens and the fourth lens on the optical axis and the central thickness CT4 of the fourth lens on the optical axis meet the following conditions: 1.3 lt; t34 / CT4lt, T34 / CT4lt; 1.8). According to the invention, the problem that a large image plane, a large aperture and an ultra-thin image pick-up 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 devices, and in particular, to a camera lens. Background technique [0002] With the rapid development of the field of photographing technology, people have higher and higher requirements on the photographing quality of the camera lens of the mobile phone. At the same time, with the development of image sensor process technologies such as CCD and CMOS, the number of pixels on a single image sensor is increasing and the size of a single pixel is getting smaller and smaller, which puts forward higher requirements for the imaging quality of the camera lens. In order to facilitate the application of the camera lens to ultra-thin electronic products, it is necessary to ensure the miniaturization of the camera lens, and at the same time, it is necessary to ensure the performance of the camera lens to meet the characteristics of large image area and large aperture. [0003] That is to sa...
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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18
Inventor 王彦戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD