公开(公告)号：US06984041B2

公开(公告)日：2006-01-10

申请号：US10693969

申请日：2003-10-28

申请人： Tetsuji Suzuki ,  Tsutou Asakura ,  Shogo Masuda ,  Terumi Ohara

发明人： Tetsuji Suzuki ,  Tsutou Asakura ,  Shogo Masuda ,  Terumi Ohara

IPC分类号： G03B21/00 ,  G03B21/14 ,  G02B27/10 ,  G02F1/1335 ,  G02F1/00

CPC分类号： G02B27/1026 ,  G02B27/145

摘要： A color-separating and -recombining optical system provided between a light source and a projection lens in a projection display, has at least one prism assembly made up of at least two prisms bonded to each other with a bonding layer formed between the prisms. A white light emitted from the light source is divided into red-, green-, and blue-color light components related to primary colors. The light components are modulated by spatial light modulators in accordance with a video signal. The modulated light components are combined and projected onto a screen via the projection lens. The thickness of the bonding layer is varied as thin and thick for optical paths long and short, respectively, from the spatial light modulators to the bonding layer which each modulated light component emitted from the corresponding spatial light modulator reaches.

摘要翻译： 在投影显示器中设置在光源和投影透镜之间的分色和组合光学系统具有由至少两个棱镜组成的至少一个棱镜组件，所述至少两个棱镜彼此接合，并在棱镜之间形成接合层。 从光源发出的白光被分为与原色相关的红，绿和蓝色光分量。 光分量根据视频信号被空间光调制器调制。 经调制的光分量经投影透镜组合并投影到屏幕上。 粘结层的厚度从空间光调制器到结合层的光路长度和短度分别变薄，厚度分别为从对应的空间光调制器发出的每个调制的光分量到达。

公开(公告)号：US06773112B2

公开(公告)日：2004-08-10

申请号：US10677505

申请日：2003-10-02

申请人： Tetsuji Suzuki ,  Tsutou Asakura

发明人： Tetsuji Suzuki ,  Tsutou Asakura

IPC分类号： G03B2114

CPC分类号： H04N9/3105 ,  G03B33/12 ,  H04N9/3167

摘要： A color-separating and -recombining optical system includes a cubic- or square column-like first to fourth polarization beam splitters having polarization-splitting planes intersecting each other and wavelength-selective polarizing converters for rotating the plane of polarization of a specific-color light component by 90 degrees. One of the converters is placed at a light-incident side of the first splitter and another is placed at a light-emitting side of the fourth splitter. The first and fourth splitters are provided at a light-incident and light-emitting sides, respectively, of the optical system. The first and fourth splitters are arranged diagonally opposing each other. The remaining converters are placed between at least two inner facing planes of the first to fourth splitters. At least the remaining converters and three of the first to fourth splitters are joined to form an optical joint component with a gap between the component and the remaining one splitter.

摘要翻译： 分色和组合光学系统包括具有彼此相交的偏振分离平面的立方或立方柱状的第一至第四偏振分束器和用于旋转特定颜色光的偏振平面的波长选择性偏振转换器 分量90度。 其中一个转换器放置在第一分离器的光入射侧，另一个放置在第四分离器的发光侧。 第一和第四分离器分别设置在光学系统的光入射和发光侧。 第一和第四分离器彼此对角布置。 剩余的转换器被放置在第一至第四分离器的至少两个面向内的平面之间。 至少剩余的转换器和第一至第四分离器中的三个被连接以形成光学接头部件，该部件与其余的一个分离器之间具有间隙。

公开(公告)号：US06698896B2

公开(公告)日：2004-03-02

申请号：US10042607

申请日：2002-01-09

申请人： Tetsuji Suzuki ,  Tsutou Asakura

发明人： Tetsuji Suzuki ,  Tsutou Asakura

IPC分类号： G03B2100

CPC分类号： H04N9/3105 ,  G03B33/12 ,  H04N9/3167

摘要： A color-separating and -recombining optical system includes a cubic- or square column-like first to fourth polarization beam splitters having polarization-splitting planes intersecting each other and wavelength-selective polarizing converters for rotating the plane of polarization of a specific-color light component by 90 degrees. One of the converters is placed at a light-incident side of the first splitter and another is placed at a light-emitting side of the fourth splitter. The first and fourth splitters are provided at light-incident and light-emitting sides, respectively, of the optical system. The first and fourth splitters are arranged diagonally opposing each other. The remaining converters are placed between at least two inner facing planes of the first to fourth splitters. At least the remaining converters and three of the first to fourth splitters are joined to form an optical joint component with a gap between the component and the remaining one splitter.

摘要翻译： 分色和组合光学系统包括具有彼此相交的偏振分离平面的立方或立方柱状的第一至第四偏振分束器和用于旋转特定颜色光的偏振平面的波长选择性偏振转换器 分量90度。 其中一个转换器放置在第一分离器的光入射侧，另一个放置在第四分离器的发光侧。 第一和第四分离器分别设置在光学系统的光入射和发光侧。 第一和第四分离器彼此对角布置。 剩余的转换器被放置在第一至第四分离器的至少两个面向内的平面之间。 至少剩余的转换器和第一至第四分离器中的三个被连接以形成光学接头部件，该部件与其余的一个分离器之间具有间隙。