A method and device for eliminating defocus
A defocus and lens technology, applied in the field of defocus elimination, can solve the problem that the lens defocus cannot be completely eliminated, and achieve the effect of eliminating manual operation, accurate parameters and simplifying the operation process
Active Publication Date: 2019-10-29
深圳聚融科技股份有限公司
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[0005] The present invention provides a method and device for eliminating defocusing, aiming to solve the problem that the operator cannot completely eliminate the defocusing of the lens when selecting the lens based on experience
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[0022] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
[0023] see figure 2 , figure 2 It is a schematic diagram of the implementation flow of the recipient identification method provided in the first embodiment of the present invention, figure 2 The shown recipient identification method mainly includes the following steps:
[0024] S201. Obtain the wavelength range of the imaging light sour...
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Embodiments of the present invention provide a method and device for eliminating defocus, which relate to the technical field of electronic equipment. Wherein, the method includes: obtaining the wavelength range of the imaging light source in the lens, searching for target parameters matching the wavelength range of the imaging light source in a preset database, and the optical filter with the target parameters can eliminate the wavelength range caused by the light source in the wavelength range Defocus, switch the filter with target parameters between the lens and the imaging sensor. Through the wavelength range of the imaging light source, search for the target parameters that match the wavelength range in the preset database, and switch the filter with the target parameters into the lens to eliminate the defocus caused by the different wavelength ranges of the imaging light source. In this way, compared with selecting by manual experience, this method searches the target parameters through the database, selects the parameters of the filter more accurately, and can completely eliminate defocus. In addition, manual operation can be omitted by automatically switching filters, which simplifies the operation process.
Description
technical field [0001] The invention belongs to the technical field of electronic equipment, and in particular relates to a method and a device for eliminating defocus. Background technique [0002] Defocus is a phenomenon that often occurs in lens imaging. Generally, in the process of optical imaging, for the same shooting point, due to the different wavelength ranges of the light in the imaging light source corresponding to different scenes, the positions where the light is imaged by the lens to the sensor are not coincident, resulting in defocus, such as figure 1 As shown, assuming that infrared light, visible light and ultraviolet light of different wavelength ranges in the imaging light source are incident from the observation object to the lens from the same incident direction, due to the different wavelengths, the refractive index of the lens for infrared light, visible light and ultraviolet light is different, then the infrared The positions where light, visible lig...
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IPC IPC(8): H04N5/232H04N5/235H04N9/04
CPCH04N23/67H04N23/70H04N23/10
Inventor 王念东李皓
Owner 深圳聚融科技股份有限公司