Anti-shake detection method and device
A detection method and anti-shake technology, which can be applied in the direction of TV, electrical components, image communication, etc., can solve the problems of inaccurate OIS test data of camera module, error of OIS test result of vibration table, etc., so as to save detection cost and avoid accuracy difference , The effect of improving the detection accuracy
Pending Publication Date: 2022-04-12
KUNSHAN Q TECH CO LTD
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However, it is difficult to make the vibration standards of the vibration table completely consistent during the production of the enterprise, which will lead to inaccurate OIS test data of the camera module using different vibration tables
[0003] Therefore, in the current OIS test of camera modules, the difference in the vibration table will bring large errors to the OIS test results.
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[0034] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0035] See figure 1 , shows a flow chart of an anti-shake detection method provided in the first embodiment of the present invention; the anti-shake detection method includes:
[0036] Step S10: According to the vibration analog signal, the gyro gain coefficient of the camera module, and the reference coordinates of the camera module imaging, obtain the anti-shake amplitude of the camera module when the anti-shake is turned on; the...
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The invention discloses an anti-shake detection method and device, and the method comprises the steps: obtaining the anti-shake amplitude of a camera module in an anti-shake starting state according to a vibration analog signal, a gyro gain coefficient of the camera module and a reference coordinate of imaging of the camera module; the vibration analog signal is a signal generated when the standard vibration table vibrates according to a preset target vibration angle; obtaining a compression ratio of the camera module according to the anti-shake amplitude and a preset target vibration angle; the compression ratio is used for verifying the anti-shake performance of the camera module. When the method is used for carrying out OIS detection on the camera module, the method does not depend on a vibration table any more; the detection error caused by the precision difference of the vibration table during OIS detection can be avoided, and the detection precision is improved.
Description
technical field [0001] The invention relates to the technical field of testing, in particular to an anti-shake detection method and device. Background technique [0002] At present, the camera modules of mobile phones all have an anti-shake function, so that clear photos can be taken even when the mobile phone is shaken or shaken. The camera module is generally equipped with an OIS (Optical Image Stabilizer, optical image stabilizer) anti-shake module. Before the camera module is assembled into other electronic devices such as mobile phones, it is necessary to detect the OIS anti-shake module of the camera module to ensure The anti-shake module is working normally. In the traditional inspection process, it is necessary to first install the camera module on a vibration table with a gyroscope, use the vibration table to simulate the vibration environment, and then correct the gyroscope, so that the camera module performs a test on the test chart (chart image). Shooting, obta...
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IPC IPC(8): H04N17/00
Inventor 黄志张生杰黄顺樟李满
Owner KUNSHAN Q TECH CO LTD