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Focusing method and device and mobile terminal

A focusing method and lens moving technology, applied in the computer field, can solve problems such as unclear photos and changes in the focal length of the lens.

Active Publication Date: 2018-10-12
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a focusing method, device, and mobile terminal to solve the problem in the prior art that the focal length of the lens changes due to excessively high or low temperature of the lens, resulting in unclear photos taken by the lens.

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  • Focusing method and device and mobile terminal
  • Focusing method and device and mobile terminal
  • Focusing method and device and mobile terminal

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Embodiment Construction

[0026] 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.

[0027] The technical solutions provided by various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] In order to solve the problems in the prior art, the present invention provides a focusing method. The execution subject of the method may be, but not limited to, a mobile phone, a tablet computer, a wearable device, etc., which can be configured to execute the method provi...

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Abstract

The invention discloses a focusing method and device and a mobile terminal, which are used for solving the problem that the lens temperature is too high or too low, so that the lens focal length changes and a photograph taken by the lens is not clear in the prior art. The focusing method includes: acquiring a distance between a lens and a photosensitive chip in a preset time period; determining afirst ratio of the distance equal to a maximum value of a preset change interval, and a second ratio of the distance equal to a minimum value of the preset change interval; increasing the maximum value of the change interval of the distance between the lens and the photosensitive chip if the first ratio is greater than or equal to a first predetermined value; and decreasing the minimum value of the change interval of the distance between the lens and the photosensitive chip if the second ratio is greater than or equal to a second predetermined value.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a focusing method, device and mobile terminal. Background technique [0002] With the continuous improvement of mobile terminal functions, the camera function has become one of the basic functions of the mobile terminal. The autofocus system of the camera module of the mobile terminal is mainly composed of the following components: lens, motor and its drive, and photosensitive chip. Among them, the lens and photosensitive chip are the main components of imaging, and the motor and its drive are the main components of autofocus. The principle of the focus of the existing camera in the state of the distant view and the close view is that, according to different object distances, the motor drives the lens to change the relative distance between the lens and the photosensitive chip, so that the reflected light of the object is focused and imaged on the chip to achieve The c...

Claims

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Application Information

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IPC IPC(8): G02B7/28G02B7/36
CPCG02B7/282G02B7/36
Inventor 周耀敏
Owner VIVO MOBILE COMM CO LTD
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