PROJECTION DISPLAY Russian patent published in 2007 - IPC G03B21/00 

Abstract RU 2297657 C1

FIELD: optics.

SUBSTANCE: projection display includes body, positioned inside which are projection screen, spatial light modulator, optical system and Fresnel reflector. Body has flat face side, on which projection screen is situated. Light source is made with possible generation of light beam and sending of same to spatial light modulator, while spatial light modulator is built with possible insertion of image information into light beam, and optical system is mounted along the route of light beam behind spatial modulator and made with possible redirection of light beams into Fresnel mirror, working surface of which consists of a set of concentric zones and which is positioned inside the body in front of projection screen.

EFFECT: creation of projection display, resistant to deformations, in which in case of screen deformation good image quality is ensured.

6 cl, 3 dwg

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RU 2 297 657 C1

Authors

Bratishchev Aleksej Vladimirovich

Levtonov Mikhail Sergeevich

Dates

2007-04-20Published

2005-10-31Filed