Laser speckle suppression element and suppression method
A laser speckle and suppression element technology, applied in the optical field, can solve the problems of screen deformation, low speckle suppression efficiency, low stability of suppression system, etc., achieve speckle suppression, improve speckle suppression efficiency, and enhance speckle The effect of suppressing the effect
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[0037] In some laser speckle suppression methods, speckle suppression is usually achieved by superimposing different speckle images over time within the integration time of the human eye. Perform laser speckle suppression, but noise will be generated during the suppression process, the screen will be deformed and its service life will be shortened, and the system stability will be low; or, a rotating optical flat plate can also be used for speckle suppression, but this suppression method can only achieve The coarse speckle caused by laser interference on the scattering sheet is eliminated, but the fine speckle caused by laser interference on the screen cannot be eliminated. Therefore, the speckle suppression efficiency is not high.
[0038] In order to solve the above-mentioned defects, an embodiment of the present application provides a laser speckle suppression element, which uses a light-transmitting material; includes an array composed of a plurality of light-transmitting r...
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