Optical axis parallelism adjustment method and system for camera module
A technology of camera module and adjustment method, which is applied in the field of optics, can solve the problems of low adjustment accuracy and poor imaging effect, and achieve the effect of precise adjustment
Active Publication Date: 2017-05-31
TRULY OPTO ELECTRONICS
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[0003] In the prior art, the optical axis of the camera module is positioned by the shape of the camera module and adjusted so that the optical axis between the modules is parallel. Obviously, this method has low adjustment accuracy, resulting in poor imaging effect
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[0047] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0048] Please refer to figure 1 , an embodiment of the present invention provides a method for parallel adjustment of the optical axis of a camera module, comprising the steps of:
[0049] S10: Take the same calibration map with at least two camera modules to be adjusted, and obtain the calibration map images taken by each of the camer...
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The invention discloses an optical axis parallelism adjustment method and system for a camera module. The optical axis parallelism adjustment method comprises the steps of shooting the same orientation map by at least two to-be-adjusted camera modules to obtain orientation map images shot by each camera module, wherein the orientation map is set towards the at least two camera modules, and a light sensitive surface of each camera module is perpendicular to the optical axis thereof; calculating an included angle between the light sensitive surface of each camera module and the plane where the orientation map is located according to the obtained orientation map images separately; and fixing the first camera module, obtaining an included angle between the light sensitive surface of the other camera module and the light sensitive surface of the first camera module according to the corresponding included angle of the first camera module and the corresponding included angle of the other camera module, and adjusting the other camera module according to the included angle between the light sensitive surfaces of the two camera modules so as to realize parallelism of the light sensitive surfaces of the two camera modules. Compared with the existing camera module appearance-based optical axis parallelism adjustment method for the camera modules, the optical axis parallelism adjustment method and system for the camera modules disclosed by the invention can more accurately adjust the optical axis parallelism of each camera module.
Description
technical field [0001] The invention relates to the field of optical technology, in particular to a method and system for parallel adjustment of the optical axis of a camera module. Background technique [0002] Mobile terminal equipment with dual camera modules will be the development trend of the future market. However, for a dual camera module, it is necessary to make the optical axes of the two camera modules parallel, so that the captured image can ensure a good imaging effect. [0003] In the prior art, the optical axis of the camera module is positioned by the shape of the camera module and adjusted so that the optical axes between the modules are parallel. Obviously, the adjustment accuracy of this method is not high, resulting in poor imaging effect. Contents of the invention [0004] The purpose of the present invention is to provide a camera module optical axis parallel adjustment method and system, which can more accurately adjust the optical axis parallelism ...
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IPC IPC(8): G03B43/00
CPCG03B43/00
Inventor 林挺李建华
Owner TRULY OPTO ELECTRONICS