Calibration method and system for laser focusing device of mobile terminal

A technology of laser focusing and mobile terminals, which is applied to the parts of color TV, parts of TV system, electrical components, etc. It can solve the problems of affecting the visual effect of the image and the inability to focus the camera.
CN105227845AActive Publication Date: 2016-01-06GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Publication Date
2016-01-06

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Abstract

The invention relates to a calibration method for a laser focusing device of a mobile terminal. The method comprises the following steps: when the mobile terminal is a first interval away from a test board, reading a first testing distance measured by the laser focusing device of the mobile terminal; calibrating a distance measurement starting point corresponding to the laser focusing device by referring to the first interval and the first testing distance; after calibration of the distance measurement starting point is completed and the mobile terminal is adjusted to a position being a second interval away from the test board, reading a second testing distance measured by the laser focusing device, wherein the second interval is greater than the first interval; and acquiring an attenuation degree value corresponding to the laser focusing device by referring to the second interval and the second testing distance, wherein the attenuation degree value is used for calibrating an actual measured value of the laser focusing device. Through adoption of the scheme of the invention, the distance measurement accuracy of the laser focusing device can be increased.
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Description

technical field

[0001] The present invention relates to the technical field of mobile terminals, in particular to a method and system for calibrating a laser focusing device of a mobile terminal. Background technique

[0002] With the development of science and technology, the functions of mobile terminals such as smartphones, tablet computers, and cameras have also been continuously improved. For example, a smart phone can also have an independent operating system and an independent operating space like a personal computer. As the functions of smart phones are becoming more and more powerful, people's applications are not limited to calling or sending messages, but can also use smart phones to take pictures.

[0003] Among them, the laser focusing device is a distance measuring device used in mobile terminals, and is often used as an additional auxiliary auto-focus function of the camera of the mobile terminal, and is a better way for the mobile terminal to achieve fast foc...

Claims

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