公开(公告)号：US06637890B1

公开(公告)日：2003-10-28

申请号：US10141065

申请日：2002-05-09

申请人： Shin Gwo Shiue ,  Mang Ou-Yang ,  Jim Chung ,  I-Pen Chien

发明人： Shin Gwo Shiue ,  Mang Ou-Yang ,  Jim Chung ,  I-Pen Chien

IPC分类号： G03B2100

CPC分类号： H04N9/3105 ,  G03B21/2066 ,  G03B21/2073 ,  G03B33/12 ,  H04N9/3167

摘要： The present invention provides a small reflective type liquid crystal projection device, which comprises an X-prism, three PBSs, two dichroic mirrors, at least three totally reflective mirrors, three reflective type liquid crystal plates, and a projection object lens. The present invention uses the X-prism matched with the three PBSs and a newly invented 3D light projection system to combine polarized light beams of the three primary colors into one, hence accomplishing the highest use efficiency and the design of light splitting and combining paths and color separating and combining. The reflective type liquid crystal projection device of the present invention has both the advantages of small volume and reduced cost.

摘要翻译： 本发明提供一种小反射型液晶投影装置，其包括X棱镜，三个PBS，两个分色镜，至少三个全反射镜，三个反射型液晶板和投影物镜。 本发明使用与三个PBS相匹配的X棱镜和新发明的3D光投影系统，将三原色的偏振光束组合成一个，从而实现最高的使用效率和光分离和组合路径的设计， 颜色分离和组合。 本发明的反射型液晶投影装置具有体积小，成本低的优点。

公开(公告)号：US06402323B1

公开(公告)日：2002-06-11

申请号：US09653317

申请日：2000-09-01

申请人： Shin Gwo Shiue ,  I-Pen Chien ,  Mang Ou-Yang ,  Chun-Lung Lai ,  Hsin-Chu Liu

发明人： Shin Gwo Shiue ,  I-Pen Chien ,  Mang Ou-Yang ,  Chun-Lung Lai ,  Hsin-Chu Liu

IPC分类号： G03B2114

CPC分类号： G03B33/12 ,  G03B21/2066 ,  G03B21/2073

摘要： The present invention proposes a reflective type liquid crystal projection system, which comprises an incident light source providing an S-polarization light beam or a P-polarization light beam as the incident light beam. A polarization of color-splitting device having a first polarization of color splitter and a second polarization of color splitter is used to split the incident light beam of three primary colors into two sets of light beams, which respectively penetrate through or are reflected. The two sets of light beams split by the first polarization of color splitter are reflected by two reflective mirrors, traverse two polarizing plates arranged between the reflective mirrors and the second polarization of color splitter, and are then incident on the second polarization of color splitter. At least a retarder is arranged between the reflective mirrors and the polarization of color-splitting device. The split light beams of three primary colors are assembled into an output light beam by a color-combining device comprising three PBS's. Finally, the output light beam is projected to form the image via a projection lens.

摘要翻译： 本发明提出了一种反射型液晶投影系统，其包括提供S偏振光束或P偏振光束作为入射光束的入射光源。 使用具有分色器的第一偏振和彩色分光器的第二偏振的分色装置的偏振将三原色的入射光束分成两组光束，其分别穿透或被反射。 通过分色器的第一偏振分开的两组光束被两个反射镜反射，穿过布置在反射镜之间的两个偏振片和分色器的第二偏振，然后入射到分色器的第二偏振。 至少一个延迟器布置在反射镜和分色装置的极化之间。 通过包括三个PBS的颜色组合装置将三原色的分裂光束组装成输出光束。 最后，通过投影透镜投射输出光束以形成图像。