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发明名称
增光投影电视
摘要
本装置是普通光学投影电视的改进。本装置是利用光的偏振性,在显像管上贴一块偏振片,该偏振片与偏振镜偏振轴方向相差90°,用与偏振片偏振轴方向相反的偏振光照射上,使原图像增亮。再由螺纹透镜投射到大屏幕上,得到一个较亮的图像。
申请公布号
CN2109674U
申请公布日期
1992.07.08
申请号
CN91226154.4
申请日期
1991.10.11
申请人
周柏坚
发明人
周柏坚
分类号
H04N5/74
主分类号
H04N5/74
代理机构
代理人
主权项
1、一种用偏振光增加投影照度的增光投影电视,它包括外壳(1),电视机(2),偏振片(3),带反射镜的增光灯(4),聚光镜(5),偏振镜(8),螺纹透镜(7),反射镜(8),透射式屏幕(9)。其特征在于:偏振片(3)与偏振镜(6)偏振轴方向相差90°。
地址
100053北京市宣西大街24-3-101
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