OPTICAL-DIGITAL SYSTEM FOR CALCULATING DIFFRACTIVE OPTICAL ELEMENTS Russian patent published in 2020 - IPC G02B27/42 G02B5/18 

FIELD: physics.

SUBSTANCE: optical-digital system for calculating diffractive optical elements comprises a helium-neon laser, behind which there is a Fourier correlator, consisting of two lenses with a different focal distance, with possibility of expanding the light beam to a size capable of completely covering the working panel of the modulator, a diaphragm installed in front of the spatial modulator connected to a computer with the possibility of changing the beam illumination amplitude, a mirror fixed on the laser beam part path separated by the splitter, with possibility of this part of laser beam redirection through convex lens, which is fixed with possibility of distribution formation in focal plane, and the video camera is installed with the possibility of fixation of this distribution and is connected to the computer.

EFFECT: faster operation and accuracy of calculations owing to realizations of complex calculations by an optical method.

1 cl, 1 dwg