公开(公告)号：EP2087399A2

公开(公告)日：2009-08-12

申请号：EP07852790.0

申请日：2007-10-16

申请人： Luxim Corporation

发明人： DEVINCENTIS, Marc ,  DUELLI, Markus ,  MCGETTIGAN, Anthony D. ,  RALSTON, Paul

IPC分类号： G02F1/01

CPC分类号： G03B21/20 ,  G03B21/2006 ,  G03B33/06 ,  G03B33/08 ,  H04N9/312 ,  H04N9/3155 ,  H04N9/3194

摘要： A micro-display projection system, including an intensity-modulated plasma lamp, rotating color wheel, micro-display imager, and system control electronics controlling the lamp, wheel and imager. Fast intensity modulation enables: controlling brightness and color tonal balance at the imager; optimizing dynamic range based on screen brightness; and compensating for 'green-snow' even when using a standard color wheel. Lamp light intensity is modulated according to the wheel rotation rate and phase, at a rate faster than the wheel rotation rate. Slow intensity modulation enables: optimizing lamp starting; lamp dimming; and compensating for aging components.