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Control method for laser focusing sensor and mobile terminal

A mobile terminal and laser focusing technology, applied in the field of mobile communication, can solve problems such as affecting the shooting effect and appearing spots in photos, and achieve the effect of improving the shooting effect

Active Publication Date: 2016-11-09
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology

[0004] However, it has been found in practice that the disadvantage of using the laser focus sensor to emit infrared rays to the subject to detect the distance between the subject and the camera is: if the subject is a close-range and highly reflective object, then the laser Most of the infrared rays emitted by the focus sensor will be reflected back into the camera, and most of the reflected infrared rays will be captured by the camera, which will cause spots in the photos taken, which will affect the shooting effect

Method used

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  • Control method for laser focusing sensor and mobile terminal
  • Control method for laser focusing sensor and mobile terminal
  • Control method for laser focusing sensor and mobile terminal

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] It should be noted that the terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that t...

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Abstract

The invention discloses a control method for a laser focusing sensor and a mobile terminal. The method comprises that incident infrared rays, emitted by the mobile terminal, returned to the mobile terminal are obtained, a light parameter of the incident infrared rays is detected, and whether the light parameter of the incident infrared rays satisfies a preset light parameter is determined; and if it is determined that the light parameter of the incident infrared rays satisfies the preset light parameter, the laser focusing sensor is switched off. According to the invention, the intensity of the infrared rays, emitted by the laser focusing sensor, reflected to a camera can be reduced.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a laser focus sensor control method and a mobile terminal. Background technique [0002] Usually, in order to take a clear photo, the user first needs to focus before taking a photo. The basic principle of focusing is to adjust the distance between the lens and the subject, so that the focus of the light reflected by the subject being focused by the lens just falls on the photosensitive chip. [0003] Currently, some smartphones introduce a laser focusing system for focusing. The laser focus system uses the laser focus sensor installed in the smartphone to emit infrared rays to the subject. The infrared rays are emitted by the subject and then received by the camera. The camera estimates the distance between the subject and the camera by calculating the time difference between receiving the infrared rays. distance. Smartphones can achieve autofocus through this di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/235
CPCH04N23/67H04N23/71
Inventor 熊星
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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