公开(公告)号：US5235443A

公开(公告)日：1993-08-10

申请号：US841252

申请日：1992-02-24

申请人： Mikhail I. Barnik ,  Sergey V. Belyaev ,  Jurg Funfschilling ,  Nikolai Malimonenko ,  Martin Schadt ,  Klaus Schmitt

发明人： Mikhail I. Barnik ,  Sergey V. Belyaev ,  Jurg Funfschilling ,  Nikolai Malimonenko ,  Martin Schadt ,  Klaus Schmitt

IPC分类号： C09K19/02 ,  C09K19/58 ,  G02B5/30 ,  G02F1/00 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/139 ,  H04N9/31

CPC分类号： G02F1/133382 ,  C09K19/02 ,  C09K19/58 ,  G02B5/3016 ,  G02F1/0063 ,  G02F1/1396 ,  H04N9/3167 ,  G02F1/133536 ,  G02F2001/133543

摘要： The polarizer comprises a layer of cholesteric liquid crystal with Grandjean structure disposed in the path of the light and in which the light in a given wavelength range is reflected with selective and circular polarization or is transmitted with reversed direction of rotation, and a mirror which reversed the direction of rotation of the circular- polarized light. The component reflected by the mirror is also transmitted. If the liquid crystal layer is concentric with the source of natural light and the mirror is spherical, the result is a source of circular polarized light. A projection system is obtained by a combination of two of the aforementioned polarizers, one serving as a polarizer and one as an analyzer, and an interposed liquid crystal display cell for modulating the intensity of the polarized light.

摘要翻译： 偏振器包括设置在光路中的具有Grandjean结构的胆甾型液晶层，其中在给定波长范围内的光被选择性和圆偏振反射或者以相反的旋转方向透射，反射镜反转 圆偏振光的旋转方向。 反射镜反射的成分也被传输。 如果液晶层与自然光源同心并且镜子是球形的，则结果是圆偏振光源。 投影系统通过两个上述偏振器，一个用作偏振器和一个作为分析器的组合获得，以及用于调制偏振光的强度的插入式液晶显示单元。