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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

AI Technical Summary

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. When the mobile device is in a dark environment, it is difficult to detect the sharpness of the image, so the time for focusing the lens will be prolonged

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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Embodiment Construction

[0077] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0078] Figure 1A is a flow chart of a lens focusing method shown according to an exemplary embodiment, Figure 1B It is a scene diagram showing lens focus according to an exemplary embodiment; the lens focus method can be applied to mobile devices (for example: smartphones, tablet computers, cameras) with camera or camera functions, such as Figure 1A As shown, the lens focusing method includes...

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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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