Focusing detection method of camera module

Abstract

The invention relates to the technical field of camera modules, in particular to a focusing detection method of a camera module. According to the focusing detection method provided by the invention, the position and the distance of the camera are determined by carrying out image recognition and height measurement before focusing; the focusing claw piece can be conveniently and accurately insertedinto the gap between the camera and the sound vibration motor, the insertion depth of the focusing claw piece relative to the camera is ensured, and the situation that the focusing claw piece cannot grasp the camera tightly or interferes with the camera due to the fact that the focusing claw piece is inserted too deep or too shallowly is avoided; after focusing, secondary image recognition and height measurement are carried out to determine the position and distance of the camera; the dispensing head can be conveniently and accurately inserted into the gap between the camera and the sound vibration motor, the insertion depth of the dispensing head relative to the camera is guaranteed, and the situation that the camera and the sound vibration motor are fixed unstably due to the fact that the dispensing position is inaccurate due to the fact that the dispensing head is inserted too deep or too shallowly is avoided.

Description

technical field [0001] The invention relates to the technical field of camera modules, in particular to a focusing detection method of a camera module. Background technique [0002] With the continuous upgrading of mobile phone camera hardware, from the era of single-camera pixels and image quality, to the large-aperture blur effect, portrait mode, and lossless zoom in the era of dual-camera, and now to the three-camera mobile phone with a large wide-angle lens, no matter the mobile phone manufacturer Still, mass consumers have never stopped pursuing mobile phone photography, and the mobile phone camera function has become one of the important factors that consumers consider when purchasing a phone. The camera module usually includes a sound-vibration motor and a camera threaded in the sound-vibration motor. The sound-vibration motor can drive the lens in the camera to fine-tune back and forth to achieve camera focus; most of the existing camera module focus methods exist L...

AI Technical Summary

Problems solved by technology

The camera module usually includes a sound-vibration motor and a camera threaded in the sound-vibration motor. The sound-vibration motor can drive the lens in the camera to fine-tune back and forth to achieve camera focus; most of the existing camera module focus methods exist Low efficiency, low focusing accuracy, and unreasonable dispensing depth

Images