camera module

Abstract

The disclosure provides a camera module, which belongs to the field of electronic technology. The camera module includes: a spherical lens and a spherical image sensor; the spherical lens includes a first mirror and a second mirror, the first mirror is a convex spherical surface, and the convex direction of the first mirror is away from the second mirror, and the second mirror is a plane Or a convex spherical surface, when the second mirror surface is a convex spherical surface, the convex direction of the second mirror surface is away from the first mirror surface; the surface of the spherical image sensor configured with a photosensitive device is a concave spherical surface, and the opening of the concave spherical surface faces the second mirror surface. Mirror surface, the optical axis of the spherical lens and the central axis of the surface equipped with the photosensitive device are on the same straight line; the image plane is formed on the surface equipped with the photosensitive device, and the image surface is also a concave spherical surface, and the curvature of the image surface is equal to the configuration The curvature of the surface of the photosensitive device. No matter which object point on the object plane is used for focusing, the focal point corresponding to each object point can fall on the surface on which the photosensitive device is arranged, thereby correcting the aberration.

Description

technical field [0001] The present disclosure relates to the field of electronic technology, and in particular, to a camera module. Background technique [0002] With the continuous development of electronic technology, electronic devices such as mobile phones and tablet computers are widely used in people's daily life. Considering that the camera function is very popular among users, most of the current electronic devices are equipped with camera modules. group to take pictures. [0003] The camera module is usually as Figure 1A As shown, the spherical lens 101, the image sensor 102 and the housing 103 are included. In the process of photographing the object by the camera module, the surface of the object facing the camera module is the object plane, and the point in the object plane is called the object point , the spherical lens 101 is used to refract the optical signal reflected by each object point in the object surface to the surface 1021 of the image sensor configur...

AI Technical Summary

Problems solved by technology

Then, when focusing on the object point A so that the focal point A1 falls on the surface 1021 on which the photosensitive device is arranged, since the focal points B1 and C1 do not fall on the surface 1021 on which the photosensitive device is arranged, the object point B, the object point The image formed by C is distorted, and the final generated image is clear in the center and distorted around

Similarly, when focusing on object point B, the final image will be clear around and distorted in the center

That is to say, no matter which object point on the object plane is focused on, there will always be aberration between the generated image and the image on the object plane, resulting in poor imaging effect of the camera module

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