PROJECTION OPTIC SYSTEM OF HOME THEATER OBJECTIVE WITH INTERNAL COMPENSATION OF PROJECTIVE SCREEN DISTORTIONS Russian patent published in 2008 - IPC G02B27/18 

FIELD: optic instrumentation.

SUBSTANCE: device contains the assisting and main cascade providing during joint action the absence of outlet image projective distortions on the inclined screen. The assisting cascade provides the linear magnification β₁=β_Σ/β₀ and forms the intermediate image on the inclines. The main cascade of the projection objective process the linear magnification β₀ in such a way that projective distortions are absent on home theater screen.

EFFECT: distortions image elimination on the home theater screen; increasing of the image quality on the screen multipixel board.

1 dwg