发明名称 PROJECTION IMAGE DISPLAY DEVICE HAVING TWO MODULATION STAGES, INCLUDING ONE APERTURE MODULATION STAGE
摘要 <p>Method of illuminating the surface of an object using a source beam in which: said source beam is divided into as many illumination sub-beams as there are surface elements to be illuminated, the aperture of which is modulated according to the predetermined light intensity to be assigned to said surface element; and each surface element is illuminated by one of said illumination sub-beams. Used to illuminate the imagers of projection devices, this method allows a second modulation stage to be added, thereby improving the display contrast of the images. ® KIPO & WIPO 2009</p>
申请公布号 KR20090091742(A) 申请公布日期 2009.08.28
申请号 KR20097011623 申请日期 2007.12.06
申请人 THOMSON LICENSING 发明人 DRAZIC VALTER;SARAYEDDINE KHALED
分类号 H04N9/31;G02B26/10 主分类号 H04N9/31
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