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Calibration equipment and calibration method for camera module optical anti-shake system

A technology for optical image stabilization and camera module, which is applied in the components, optics, and image communication of TV systems, and can solve problems such as large differences in image quality.

Active Publication Date: 2020-04-03
NINGBO SUNNY OPOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These factors all make the image quality difference between the center area and the edge area of ​​the image corrected by the existing method become larger

Method used

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  • Calibration equipment and calibration method for camera module optical anti-shake system
  • Calibration equipment and calibration method for camera module optical anti-shake system
  • Calibration equipment and calibration method for camera module optical anti-shake system

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Embodiment Construction

[0069] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0070] Optical anti-shake technology is an important anti-shake technology currently developed in the field of photography, which can slow down the degradation of image quality caused by the influence of the external environment, such as hand shaking, to a certain extent. Optical image stabilization can improve image quality and compensate for the impact on image quality caused by shaking. However, in the prior art, relatively more attention is paid to t...

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Abstract

A camera module optical anti-shake system correction device and method, the method uses a CTF standard to perform MTF test and obtains the parameters of the optical anti-shake system by balancing the MTF resolution levels of the central field of view and the edge field of view, and then can Use the SFR test or DB test to evaluate the anti-shake performance of the optical image stabilization system, so as to ensure that the center resolution meets the requirements, improve the edge resolution, reduce edge blurring, and balance the overall image quality.

Description

technical field [0001] The present invention relates to the field of optical anti-shake camera modules, and further relates to a correction device and a correction method for the optical anti-shake system of a camera module, which corrects the optical anti-shake system of the camera module based on image effects. Background technique [0002] Optical Image Stabilizer (OIS: Optical Image Stabilizer) is currently the most recognized anti-shake technology by the public. It can compensate the shaky optical path through moving parts, thereby reducing the effect of photo blur. At present, optical anti-shake technology is divided into two categories, one is to achieve optical anti-shake through the movement of the lens, and the other is to achieve optical anti-shake through the movement of CCD photosensitive elements. [0003] Optical anti-shake technology is that the gyroscope in the lens detects the slight movement of the lens. When the movement is detected, the gyroscope transmi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232G03B5/00
CPCG03B5/00H04N23/60
Inventor 王斌丁亮王明珠郭楠
Owner NINGBO SUNNY OPOTECH CO LTD