FEEDBACK PROJECTION OPTICAL DEVICE

FIELD: physics. ^ SUBSTANCE: feedback projection device includes light source with set of red, green and dark blue light-emitting diodes, directional element, at least, one projection lens, spatial light modulator, light sensor with its output connected to the input of controller, spatial light modulator control module and light source control module. The modulator enables imaging in light beam thereafter projected. The light sensor control provides measuring red, green and dark blue levels in light beam reflected from the screen. The controller ensures control red, green and dark blue component level in light beam and transmits correcting light beam to the spatial light modulator control module and light source control module regarding beam colour component level measured by light sensor. The light sensor controls white and measures flare smoothness shined of the projector illuminated screen and represents the chamber with multiple-unit photodetector. ^ EFFECT: usability and enhanced operational reliability. ^ 4 cl, 1 dwg