camera module

Abstract

The invention discloses a camera module, which comprises a lens, a substrate fixedly matched with the lens, an image sensor fixedly arranged on the substrate, wherein the lens comprises a lens cone and a lens arranged inside the lens cone; the lens comprises a first optical axis; the substrate comprises opposite first surface and second surface, and a first inclined plane between the first surface and the second surface; the first inclined plane inclines oppositely to the optical axis; the substrate is provided with a through hole penetrating through the first surface and the second surface; the first surface encircles the through hole; the substrate is arranged between the lens and the image sensor, and an effective photosensitive area of the image sensor is arranged inside the through hole. In the camera module provided by the invention, a large part of rays cannot achieve the effective photosensitive area of the image sensor after being reflected by the first inclined plane. Thus, the rays projected to the effective photosensitive area after being reflected by the inner wall of the through hole are reduced, and reflected light patterns in the imaged image are also reduced.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a camera module. Background technique [0002] The camera module includes a lens barrel, a lens group arranged in the lens barrel, a substrate and an image sensor arranged on the substrate. The substrate is provided with through holes penetrating through the upper and lower surfaces. The through hole allows light to pass through to the image sensor for imaging. [0003] In a traditional camera module, the inner wall of the through hole is generally a vertical wall, and some light is easily reflected by the inner wall of the through hole to the effective photosensitive area of ​​the image sensor, resulting in serious reflected light streaks in the imaged image. Contents of the invention [0004] In view of this, it is necessary to provide a camera module capable of reducing reflection light streaks. [0005] A camera module includes a lens, a substrate fixedly matched...

AI Technical Summary

Problems solved by technology

[0003] In a traditional camera module, the inner wall of the through hole is generally a vertical wall, and some light is easily reflected by the inner wall of the through hole to the effective photosensitive area of ​​the image sensor, resulting in serious reflected light streaks in the imaged image

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