Optical lens and electronic equipment

CN119731572APending Publication Date: 2025-03-28MECH MIND ROBOTICS TECH LTD
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Patent Information

Application Number
CN202480003388.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-07-14
Filing Date
2024-07-02
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Existing optical lenses cannot meet the needs of large field of view clear imaging and high relative illumination at the same time, resulting in large differences in brightness between the middle and edges of the image.

Method used

Design an optical lens, including an aperture diaphragm and multiple lenses arranged coaxially from the object side to the image side. Through the symmetrical layout and focal power combination of the aperture front lens group and the aperture rear lens group, a large field of view can be achieved angle and high relative illumination imaging performance.

Benefits of technology

It realizes clear imaging in the angle of the field, and at the same time has high -resolution and low distortion optical properties, and the relative degree of relative degree is high to ensure the uniformity of the face illuminance.

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Abstract

The invention belongs to the technical field of optics, and particularly relates to an optical lens and electronic equipment. The optical lens comprises an aperture diaphragm and a plurality of lenses which are sequentially and coaxially arranged from an object side to an image side, the side, facing the object side, of the aperture diaphragm is provided with the plurality of lenses, and a diaphragm front lens group is formed; one side, facing the image side, of the aperture diaphragm is provided with a plurality of lenses to form a diaphragm rear lens group; the number of the lenses of the diaphragm front lens group is the same as that of the lenses of the diaphragm rear lens group, and distortion is offset symmetrically, so that reduction of optical distortion of the optical lens is facilitated; the diaphragm front lens group has negative focal power, the diaphragm rear lens group has positive focal power, the diaphragm front lens group and the diaphragm rear lens group form aberration compensation, and the imaging performance of the optical lens is improved. The lens closest to the object side has the positive focal power so as to converge off-axis light beams with a large angle, the large field angle of the optical lens is achieved, meanwhile, the clear aperture of a light path is reduced, and then miniaturization of the light path structure is achieved.
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