Camera module, electronic equipment, optical element and preparation method of camera module

Abstract

The invention discloses a camera module, electronic equipment, an optical element and a preparation method of the camera module. The camera module comprises a lens group, the optical element, an imagesensor and a processor, wherein the optical element is arranged in a Fourier transform plane between two lenses; the image sensor receives the diffracted image light reduced by the optical element and converts the image light into a first image signal, and the first image signal is used for being transmitted to a convolution filter in the processor to be subjected to deconvolution filtering processing so as to compensate blurring to obtain a second image signal. Optical elements are arranged in Fourier transformation planes of the two lenses, so that diffraction of light passing through the camera module is reduced. The diffracted image light is received by the image sensor and is converted into a first image signal by the image sensor, so that deconvolution filtering processing is carried out on the first image signal to further compensate blurring to obtain a second image signal, and the diffraction of the light passing through the camera module can be reduced.

Description

technical field [0001] The present application relates to the technical field of electronic equipment, and in particular to a camera module, an electronic device, an optical element, and a method for preparing the camera module. Background technique [0002] As people have higher and higher aesthetic requirements for electronic equipment, the camera module is placed under the screen of the electronic device, and the light received or emitted by the camera module passes through the screen. A plurality of pixel units constitute a periodic pixel diffraction structure, so it will produce a diffraction effect on the incident light, which will eventually lead to a decrease in the projection or imaging quality of the camera module installed on the back of the screen. Contents of the invention [0003] The present application provides a method for preparing a camera module, electronic equipment, optical elements and the camera module, considering optimizing the structure of the ca...

AI Technical Summary

Problems solved by technology

[0002] As people have higher and higher aesthetic requirements for electronic equipment, the camera module is placed under the screen of the electronic device, and the light received or emitted by the camera module passes through the screen. Unit, multiple pixel units constitute a periodic pixel diffraction structure, so it will have a diffraction effect on the incident light, which will eventually lead to a decrease in the projection or imaging quality of the camera module set on the back of the screen

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