Calibration method and system for laser focusing device of mobile terminal

A technology of laser focusing and mobile terminal, which is applied in the parts of color TVs, parts of TV systems, electrical components, etc., can solve the problems that camera focusing cannot be achieved and affect the visual effect of images.

Active Publication Date: 2018-01-16
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the product realization, it is found that the laser focusing device always has a certain deviation when measuring the distance, and if the distance measured by the laser focusing device is not accurate enough, the camera’s focus will definitely not be achieved, which will seriously affect the shooting. visual effects of the image

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  • Calibration method and system for laser focusing device of mobile terminal
  • Calibration method and system for laser focusing device of mobile terminal

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0021] In the following description, various embodiments of the calibration method of the laser focusing device of the mobile terminal of the present invention will be described first, and then various embodiments of the calibration system of the laser focusing device of the mobile terminal of the present invention will be described.

[0022] see figure 1 As shown, it is a schematic flowchart of an embodiment of a method for calibrating a laser focusing device of a mobile terminal according to the present invention. like figure 1 As shown, the calibration method of the...

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Abstract

The present invention relates to a method for calibrating a laser focusing device of a mobile terminal. The method comprises the steps of: when the mobile terminal is separated from the test board by a first distance, reading the measured value of the laser focusing device of the mobile terminal The first test distance; combining the first distance and the first test distance to calibrate the ranging starting point corresponding to the laser focusing device; after the ranging starting point calibration is completed, and the mobile terminal is adjusted to match When the test board is apart from the second distance, read the second test distance measured by the laser focusing device, wherein the second distance is greater than the first distance; combine the second distance with the first The second test distance is to obtain the attenuation degree value corresponding to the laser focusing device, wherein the attenuation degree value is used to calibrate the actual measurement value of the laser focusing device. By adopting the solution of the present invention, the ranging accuracy of the laser focusing device can be improved.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
Inventor 周意保
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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