ARRANGEMENT OF PROJECTION DISPLAY Russian patent published in 2003 - IPC

FIELD: image projection. SUBSTANCE: projection display includes optical modulator modulating light beam emitted by optical system forming radiation and projection optical system that enlarges and projects light beam modulated by specified optical modulator. Optical modulator incorporates assemblage of pixels placed in matrix and microlens set including collection of microlenses to collect light beam incident on specified pixels. Diaphragm number of projection optical system is less than diaphragm number of specified optical system forming radiation. EFFECT: provision for bright projected image thanks to prevented deterioration of efficiency of employment of light due to light scattering by microlenses. 14 cl, 8 dwg