Lens focus method and device, and mobile device

A focusing method and lens technology, applied in the electronic field, can solve the problems of difficult detection of image sharpness, prolonging the time of lens focusing, etc., and achieve the effect of improving fun and accurate focusing distance

Inactive Publication Date: 2017-01-11
XIAOMI INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The focusing method of related technologies is affected by the environment, the aperture size of the lens itself, and the viewing ability of the sensor.

Method used

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  • Lens focus method and device, and mobile device
  • Lens focus method and device, and mobile device
  • Lens focus method and device, and mobile device

Examples

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Example Embodiment

[0077] The exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. Rather, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0078] Figure 1A Is a flowchart showing a lens focusing method according to an exemplary embodiment, Figure 1B It is a scene diagram showing lens focusing according to an exemplary embodiment; the lens focusing method can be applied to a mobile device (for example, a smart phone, a tablet computer, or a camera) with a camera or video function, such as Figure 1A As shown, the lens ...

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Abstract

The invention relates to a lens focus method and device, and a mobile device, and is used for improving focus speed. The method comprises the steps of determining the first distance between a lens of an image collection device and a photographed object; determining the required movement quantity of the lens from an initial position according to the first distance; and adjusting the image distance between the image sensor of the image collection device and the lens according to the movement quantity. According to the technical scheme, on the basis of rapid focus, the focus distance is more accurate, and the image collection device can obtain a clearer image.

Description

technical field [0001] The present disclosure relates to the field of electronic technology, and in particular to a lens focusing method, device and mobile device. Background technique [0002] As photography becomes more and more widely used, in order to obtain a clear photo through a mobile device with a camera function, there are higher and higher requirements for the focus of the lens. Related technologies In the process of using a mobile device to take pictures, multiple frames of pictures are acquired by moving the lens forward and backward, and the sharpness changes of the pictures are analyzed through the acquired multiple frames of pictures to determine the position with the highest sharpness, thereby focusing the lens to the highest sharpness position to complete the overall focusing process. The focusing method of the related technology is affected by the environment, the aperture size of the lens itself, and the viewing ability of the sensor. When the mobile dev...

Claims

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Application Information

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IPC IPC(8): H04N5/225H04M1/725G03B13/36G02B7/09
Inventor 郭峰孙长宇王彦腾
Owner XIAOMI INC
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