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Calibration method, device, electronic device and voice coil motor

A technology of electronic equipment and calibration method, which is applied in the fields of voice coil motors, devices, and calibration methods, and can solve problems affecting image acquisition, etc.

Active Publication Date: 2022-02-15
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the lens will be tilted to different degrees during the movement controlled by the voice coil motor, which will affect the image acquisition at the target focus position

Method used

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  • Calibration method, device, electronic device and voice coil motor
  • Calibration method, device, electronic device and voice coil motor
  • Calibration method, device, electronic device and voice coil motor

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Embodiment Construction

[0035] In order to make the purpose, technical solution and advantages of the present application clearer, the present application 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 application, and are not intended to limit the present application.

[0036] It can be understood that the terms "first", "second" and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first direction could be termed a second direction, and, similarly, a second direction could be termed a first direction, without departing from the scope of the present application. Both the first direction and the second direction are directions, but they are not the same direction.

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PUM

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Abstract

The present application relates to a calibration method, device, electronic equipment and voice coil motor, the method comprising: when it is detected that the lens moves to a preset position, acquiring a detection image of a test chart; determining the The current tilt amount of the lens; adjusting the energizing current of the correction coil according to the tilt calibration function and the current tilt amount, so that the correction coil controls the movement of the lens to compensate for the current tilt amount. The correction method obtains the target energizing current corresponding to the correction coil through the preset tilt calibration function and the current tilt amount, and uses the target energizing current of the correction coil to control the lens movement to compensate the current tilt amount of the lens, which solves the problem of the lens at the target position. Issue where the current amount of tilt affects image capture.

Description

technical field [0001] The present application relates to the field of imaging, in particular to a calibration method, device, electronic equipment and voice coil motor. Background technique [0002] With the development of imaging technology, people are more and more accustomed to taking images or videos and recording various information through image acquisition devices such as cameras on electronic devices. Under the action of the focusing coil in the voice coil motor, the camera moves to the target focusing position to focus and collect images. [0003] However, the lens will be tilted to different degrees during the movement controlled by the voice coil motor, which affects the acquisition of images at the target focus position. Contents of the invention [0004] Embodiments of the present application provide a correction method, device, electronic equipment, and voice coil motor, which can compensate for an offset generated by a lens during movement. [0005] A cor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225H04N5/232
CPCH04N23/54H04N23/55H04N23/685
Inventor 陈伟
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD