发明名称 Rear projection apparatus
摘要 A rear projection apparatus is disclosed which is provided with at least two optical projection lens units. Two or more projected images are joined to form a single projected image on a screen. A light reflection preventing member is provided on a blocking plate for preventing the adjacent images from overlapping with each other. The reflection preventing member is used for preventing the light, projected onto the blocking plate, from being introduced into the screen, thereby preventing a degradation of contrast.
申请公布号 US4895429(A) 申请公布日期 1990.01.23
申请号 US19880250114 申请日期 1988.09.28
申请人 HITACHI, LTD. 发明人 IWAHARA, YOSHIAKI;OGUINO, MASANORI;TAMURA, YUZO
分类号 G03B21/00;G03B21/56;G03B21/62;G09F9/00 主分类号 G03B21/00
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