LIGHT-BEAM MECHANISM FOR DIGITAL VIDEO PROJECTOR Russian patent published in 2009 - IPC G02B5/09 

FIELD: information technologies.

SUBSTANCE: invention is related to system, which is able to project sequence of digital video images on screen with different sizes and shape by means of light beam, which may be generated by light source (1) of laser type with low or medium power or white light with orientation by ball joints (2) with three degrees of freedom. System comprises rotary disk microoptical gate (4) with slots (3), two rotary optical disks (5) and (7) with digital control on axis (12) by ball joints (6) with three degrees of freedom, which create vertical and horizontal beam sweep on screen limited by rectangular optical gate (8). Image is realised by means of sequential reflection of light beam by microscopic reflecting facets coated with thin layer of metal and distributed on disks surface (5) and (7). Surface of every facet is oriented with angle of reflection, which increases according to angle growth, which depends on purpose of application. System may be used for digital cinema supporting ultrahigh resolution.

EFFECT: preservation of substantial characteristics of initial signal.

7 cl, 9 dwg