Speckle elimination device based on Mie scattering and optical device
An optical device, Mie scattering technology, applied in optical elements, optics, instruments, etc., can solve the problems of poor speckle elimination effect, complex realization structure, high cost, and achieve good speckle elimination effect, reasonable structure, high cost. The effect of utilization
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[0029] Such as figure 2 , 3 As shown, the speckle elimination device based on Mie scattering and optical devices includes an optical reflection cavity 302 on which an incident light coupling device 301 and a transmission and exit surface 303 are arranged, and an incident light coupling device 301 is arranged facing the optical reflection cavity 302 Optical device 308; The optical device 308 is an optical device that can change the angle of incidence when the beam enters the optical reflecting cavity 302 into the light coupling device 301; the inner walls of the optical reflecting cavity 302 except for the inner wall of the transmission and exit surface 301 are all "mirror surfaces" The inner wall (that is, the inner wall has the characteristics of high reflectivity and can "total reflect" the laser beam incident on the optical reflection cavity), the optical reflection cavity 302 is provided with a transparent solid substance 401 that fills the entire optical reflection cavity 3...
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