Optical system including a reflecting polarizer fo

专利名称：Optical system including a reflecting

polarizer for a rear projection picturedisplay apparatus

发明人：Shigekazu Yamagishi申请号：US08/378795申请日：19950126公开号：US05557343A公开日：19960917

摘要：An optical system for a rear projection picture display has reduced size whilemaintaining screen size. Two plane mirrors are provided along a light path between apicture display unit and a screen. The first plane mirror at a projection lens side is madeof a reflecting polarizer and is located along a light path between the second planemirror and the screen. The two plane mirrors are set in a relative angle so that theincident angle of the light traveling from the projection lens to the first plane mirror islarge as compared with the incident angle of the light traveling from the second planemirror to the first plane mirror. A polarizing plate is attached at the rear side of thescreen.

申请人：MATSUSHITA ELECTRIC INDUSTRIAL, CO., LTD.

代理机构：Ratner & Prestia

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