公开(公告)号：EP0077188A3

公开(公告)日：1985-07-24

申请号：EP82305360

申请日：1982-10-08

申请人： XEROX CORPORATION

发明人： Sprague, Robert A.

IPC分类号： G02F01/315 ,  G02F01/03 ,  G06K15/12 ,  G06G09/00

CPC分类号： H04N1/19515 ,  G02F1/0316 ,  G02F1/315 ,  H04N1/036 ,  H04N1/19505 ,  H04N1/19531 ,  H04N1/19547 ,  H04N1/19573

摘要： A two dimensional electro-optic modulator (12) comprises an electro-optic element and a two dimensional planar array of individually addressable electrodes (17a-17i, 18a-18i, 19a-19l) for spatially modulating a light beam (32) along a plurality of transverse axes or for imparting a geometric phase front to the light beam. Such a modulator may be used, for example, (1) in a real time or in a time delay and integration mode as a multigate light valve for (a) electro-optic line printing or (b) optical displays, or (2) in a real time mode as (a) a beam focussing and tracking device for optical memories or (b) an arcal input device, a Fourier plane filter, or an image plane correlation mask for optical processing.