公开(公告)号：US06229646B1

公开(公告)日：2001-05-08

申请号：US08687622

申请日：1996-07-24

申请人： Hideaki Mitsutake ,  Noritaka Mochizuki ,  Shigeru Kawasaki ,  Kazumi Kimura ,  Junko Shingaki

发明人： Hideaki Mitsutake ,  Noritaka Mochizuki ,  Shigeru Kawasaki ,  Kazumi Kimura ,  Junko Shingaki

IPC分类号： G02B530

CPC分类号： H04N9/3167 ,  G02B27/283 ,  G02B27/285 ,  H04N9/3105

摘要： This specification discloses a plate-like polarizing element for converting light into polarized light having a plurality of units arranged along a common plane across the light, each of the units being provided with dividing means for dividing the light into reflected light and transmitted light whose planes of polarization are orthogonal to each other, varying means for varying the polarized state of at least one of the reflected light and the transmitted light to thereby make the planes of polarization of the two lights coincident with each other, and reflecting means for reflecting one of the reflected light and the transmitted light and directing it substantially in the same direction as the direction of travel of the other. The specification also discloses a polarizing conversion unit provided with such plate-like polarizing element, and a projector provided with such unit.

摘要翻译： 本说明书公开了一种用于将光转换成偏振光的板状偏振元件，具有沿着共同平面布置的多个单元，每个单元设置有用于将光分解成反射光和透射光的分割装置， 的偏振方向彼此正交，用于改变反射光和透射光中的至少一个的偏振状态的改变装置，从而使两个光的偏振平面彼此一致;以及反射装置，用于反射 反射光和透射光并且基本上沿与另一个的行进方向相同的方向引导。 本说明书还公开了一种设置有这种板状偏振元件的偏光转换单元，以及设置有该单元的投影仪。

公开(公告)号：US5566367A

公开(公告)日：1996-10-15

申请号：US163564

申请日：1993-12-08

申请人： Hideaki Mitsutake ,  Noritaka Mochizuki ,  Shigeru Kawasaki ,  Kazumi Kimura ,  Junko Shingaki

发明人： Hideaki Mitsutake ,  Noritaka Mochizuki ,  Shigeru Kawasaki ,  Kazumi Kimura ,  Junko Shingaki

IPC分类号： G02B5/30 ,  G02B27/28 ,  G03B21/00 ,  G03B33/12 ,  H04N5/74 ,  H04N9/31

CPC分类号： H04N9/3167 ,  G02B27/283 ,  G02B27/285 ,  H04N9/3105

摘要： This specification discloses a plate-like polarizing element for converting light into polarized light having a plurality of units arranged along a common plane across the light, each of the units being provided with dividing means for dividing the light into reflected light and transmitted light whose planes of polarization are orthogonal to each other, varying means for varying the polarized state of at least one of the reflected light and the transmitted light to thereby make the planes of polarization of the two lights coincident with each other, and reflecting means for reflecting one of the reflected light and the transmitted light and directing it substantially in the same direction as the direction of travel of the other. The specification also discloses a polarizing conversion unit provided with such plate-like polarizing element, and a projector provided with such unit.

摘要翻译： 本说明书公开了一种用于将光转换成偏振光的板状偏振元件，具有沿着共同平面布置的多个单元，每个单元设置有用于将光分解成反射光和透射光的分割装置， 的偏振方向彼此正交，用于改变反射光和透射光中的至少一个的偏振状态的改变装置，从而使两个光的偏振平面彼此一致;以及反射装置，用于反射 反射光和透射光并且基本上沿与另一个的行进方向相同的方向引导。 本说明书还公开了一种设置有这种板状偏振元件的偏光转换单元，以及设置有该单元的投影仪。

公开(公告)号：US5461500A

公开(公告)日：1995-10-24

申请号：US293738

申请日：1994-08-22

申请人： Sadahiko Tsuji ,  Hidetoshi Suzuki ,  Hideaki Mitsutake ,  Katsumi Kurematsu ,  Noritaka Mochizuki ,  Nobuo Minoura ,  Shigeru Kawasaki ,  Kazumi Kimura ,  Junko Shingaki

发明人： Sadahiko Tsuji ,  Hidetoshi Suzuki ,  Hideaki Mitsutake ,  Katsumi Kurematsu ,  Noritaka Mochizuki ,  Nobuo Minoura ,  Shigeru Kawasaki ,  Kazumi Kimura ,  Junko Shingaki

IPC分类号： G02B27/28 ,  G02B5/30 ,  G02F1/1335

CPC分类号： G02B27/283

摘要： This specification discloses a polarization converting apparatus having means emitting non-polarized light, and polarizing means having a light incidence surface and a light emergence surface, the polarizing means receiving the non-polarized light by the light incidence surface and causing polarized light to emerge from the light emergence surface, the size and shape of the light incidence surface being similar to the size and cross-sectional shape of the non-polarized light. The specification also discloses an optical instrument having such apparatus.

摘要翻译： 该说明书公开了一种具有发射非偏振光的装置的偏振转换装置和具有光入射表面和光出射表面的偏振装置，该偏振装置由光入射表面接收非偏振光，并使偏振光从 光出射表面，光入射表面的尺寸和形状类似于非偏振光的尺寸和横截面形状。 本说明书还公开了具有这种装置的光学仪器。

公开(公告)号：US5692819A

公开(公告)日：1997-12-02

申请号：US403549

申请日：1995-03-02

申请人： Hideaki Mitsutake ,  Kohtaro Yano ,  Shigeru Kawasaki ,  Kazumi Kimura ,  Junko Shingaki

发明人： Hideaki Mitsutake ,  Kohtaro Yano ,  Shigeru Kawasaki ,  Kazumi Kimura ,  Junko Shingaki

IPC分类号： F21S8/00 ,  F21V5/04 ,  F21V7/09 ,  G02F1/13357 ,  H04N5/74 ,  H04N9/31 ,  G03B21/00

CPC分类号： F21V5/048 ,  F21V7/09 ,  H04N5/7441 ,  H04N9/3152 ,  F21W2131/406 ,  G02F1/1336 ,  H04N5/74

摘要： A projector comprising a light source having first and second high-luminance light emitting areas, an illuminating optical system for directing the light, from said light source, toward an object to be illuminated, wherein said first and second high-luminance light-emitting areas are positioned on the optical axis of said illuminating optical system, and a projection optical system for projecting the light emerging from said illuminated object, wherein said illuminating optical system is constructed in such a manner that a central area of said illuminated object is illuminated by most of the light beam from said first high-luminance light-emitting area, and a peripheral area of said illuminated object is illuminated by the remainder of the light beam from said first high-luminance light emitting area and most of the light from said second high-luminance light-emitting area.

摘要翻译： 一种投影仪，包括具有第一和第二高亮度发光区域的光源，用于将光从所述光源引导到被照明物体的照明光学系统，其中所述第一和第二高亮度发光区域 位于所述照明光学系统的光轴上，以及投影光学系统，用于投射从所述被照射物体出射的光，其中所述照明光学系统被构造成使得所述被照明物体的中心区域被大部分照射 来自所述第一高亮度发光区域的光束和所述被照明物体的外围区域被来自所述第一高亮度发光区域的光束的剩余部分照射，并且来自所述第二高亮度发光区域的大部分光线 亮度发光面积。

公开(公告)号：US5381278A

公开(公告)日：1995-01-10

申请号：US146801

申请日：1993-11-01

申请人： Junko Shingaki ,  Hideaki Mitsutake ,  Kazumi Kimura

发明人： Junko Shingaki ,  Hideaki Mitsutake ,  Kazumi Kimura

IPC分类号： G02B27/28 ,  H04N9/31 ,  G02B5/30 ,  G02F1/1335 ,  G03B21/14

CPC分类号： H04N9/3105 ,  G02B27/283 ,  H04N9/3167

摘要： A polarization conversion unit is disclosed. In the unit, a definitely polarized light emitted from a light source is divided into a pair of lights differing in polarized state and are caused to be incident on the optical components including the polarizing beam splitter. The plane of polarization of one of the paired polarized light is rotated to be coincident with the plane of polarization of the other light by the optical components, so that the paired lights with the same plane of polarization are caused to be separately emitted. The optical component has a plano-convex lens which has a positive power and which is arranged at an exit side where the paired lights are separately emitted. The lens has a focal point at a position further than the position of the surface to be illuminated.

摘要翻译： 公开了一种偏振转换单元。 在该单元中，从光源发射的绝对偏振光被分为一对不同偏振状态的光，并且被引入到包括偏振分束器的光学部件上。 使一对偏振光中的一个偏振光的平面旋转成与光学部件的另一个光的偏振面一致，从而使具有相同的偏振面的成对的光分别发射。 光学部件具有平面凸透镜，该平凸透镜具有正的光焦度，并且布置在分开发射配对的光的出射侧。 透镜在比要被照射的表面的位置更远的位置处具有焦点。

公开(公告)号：US5568287A

公开(公告)日：1996-10-22

申请号：US562381

申请日：1995-11-24

申请人： Junko Shingaki ,  Shuzo Kaneko ,  Katsumi Kurematsu ,  Hideaki Mitsutake

发明人： Junko Shingaki ,  Shuzo Kaneko ,  Katsumi Kurematsu ,  Hideaki Mitsutake

IPC分类号： G02F1/1337 ,  G02B6/04 ,  G02F1/1333 ,  G02F1/1347 ,  G02F1/136 ,  G02F1/1368 ,  G02F1/137 ,  G02F1/141 ,  G09G3/36

CPC分类号： G02F1/13471 ,  G09G3/3651 ,  G02F1/141 ,  G09G2300/023

摘要： A liquid crystal device comprises: a) a liquid crystal cell including a plurality of pixels aligned on a plurality of lines and rows, each of the pixels composed of a pair of electrodes and liquid crystals provided between the pair of electrodes; and b) an optical unit including high-refractive portions positioned corresponding to the pixels, and low-refractive portions positioned next to the high-refractive portions on a plane, the high-refractive portions and low-refractive portions having the refractive indexes the ratio between which satisfies the condition for total reflection of incident light.

摘要翻译： 一种液晶装置，包括：a）液晶单元，包括排列在多个行和行上的多个像素，每个像素由一对电极和设置在该对电极之间的液晶组成; 以及b）包括对应于所述像素定位的高折射部分的光学单元和位于平面上的所述高折射部分旁边的低折射部分，所述折射率的所述高折射率部分和低折射部分的比率 其间满足入射光全反射的条件。

公开(公告)号：US5257123A

公开(公告)日：1993-10-26

申请号：US795047

申请日：1991-11-20

申请人： Junko Shingaki ,  Hideaki Mitsutake

发明人： Junko Shingaki ,  Hideaki Mitsutake

IPC分类号： G02F1/133 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/141 ,  G02F1/13

CPC分类号： G02F1/133382 ,  G02F1/133528 ,  G02F1/141 ,  G02F2001/133638

摘要： An optical modulating device comprises a polarizer, an analyzer and liquid crystals positioned between the polarizer and the analyzer. The device controls the birefringence of the liquid crystals by applying an electric field to the liquid crystals so as to change the polarization of light of the device. The device further comprises a rotatable halfwave plate which is positioned between the liquid crystals and the analyzer or between the liquid crystals and the polarizer in such a manner that the optical axis of the halfwave plate will be rotated around the optical axis of light coming into the optical modulating device. The device varies the rotational angle of the halfwave plate in accordance with the temperature of the liquid crystals or the environment thereof.

公开(公告)号：US5615025A

公开(公告)日：1997-03-25

申请号：US358992

申请日：1994-12-19

申请人： Shuzo Kaneko ,  Hideaki Mitsutake ,  Junko Shingaki

发明人： Shuzo Kaneko ,  Hideaki Mitsutake ,  Junko Shingaki

IPC分类号： G02F1/133 ,  G02F1/1335 ,  G02F1/1347 ,  G02F1/141 ,  G02F1/335

CPC分类号： G02F1/133382 ,  G02F1/133528 ,  G02F1/13471 ,  G02F1/141 ,  G02F2001/133531

摘要： The present invention relates to an optical modulation device that maintains good contrast despite changes in temperature and is capable of performing stable display. A polarizer, a first and second modulator and an analyzer are provided. Each modulator is a chiral smectic liquid crystal layer held between two opposite substrates which have different orientation determining abilities. The chiral smectic liquid crystal layers have at least two stable alignment states and substantially the same temperature dependency and tilt angle. The molecular axis of the first modulator at one of the two stable alignment states is substantially parallel to a transmitting modulation axis of said polarizer and is substantially perpendicular to a transmitting polarizing axis of said analyzer, and a molecular axis at one of the two stable alignment states of said second modulator is substantially parallel to a transmitting polarization axis of said analyzer.

摘要翻译： 本发明涉及尽管温度变化而保持良好的对比度并且能够执行稳定显示的光学调制装置。 提供偏振器，第一和第二调制器和分析器。 每个调制器是保持在具有不同取向决定能力的两个相对基板之间的手性近晶液晶层。 手性近晶液晶层具有至少两个稳定的取向状态和基本相同的温度依赖性和倾斜角。 在两个稳定取向状态中的一个处的第一调制器的分子轴基本上平行于所述偏振器的透射调制轴，并且基本上垂直于所述分析器的透射偏振轴，并且在两个稳定对准中的一个处的分子轴 所述第二调制器的状态基本上平行于所述分析器的透射偏振轴。

公开(公告)号：US5495351A

公开(公告)日：1996-02-27

申请号：US284267

申请日：1994-08-02

申请人： Junko Shingaki ,  Shuzo Kaneko ,  Katsumi Kurematsu ,  Hideaki Mitsutake

发明人： Junko Shingaki ,  Shuzo Kaneko ,  Katsumi Kurematsu ,  Hideaki Mitsutake

IPC分类号： G02F1/1337 ,  G02B6/04 ,  G02F1/1333 ,  G02F1/1347 ,  G02F1/136 ,  G02F1/1368 ,  G02F1/137 ,  G02F1/141 ,  G09G3/36 ,  G02F1/133 ,  G02F1/13 ,  G02F1/1343

CPC分类号： G02F1/13471 ,  G09G3/3651 ,  G02F1/141 ,  G09G2300/023

摘要： A liquid crystal device comprising a liquid crystal cell including a plurality of pixels aligned on a plurality of lines and rows, each of the pixels composed of a pair of electrodes and liquid crystals provided between the pair of electrodes; and an optical unit including high-refractive portions positioned corresponding to the pixels, and low-refractive portions positioned next to the high-refractive portions on a plane, the high-refractive portions and the low-refractive portions having the refractive indexes the ratio between which satisfies the condition for total reflection of incident light. Another embodiment is a liquid crystal device comprising two liquid crystal cells wherein each of the cells exhibit monostable orientation.

摘要翻译： 一种液晶装置，包括：液晶单元，包括排列在多个行和行上的多个像素，每个像素由一对电极和设置在所述一对电极之间的液晶组成; 以及光学单元，其包括对应于所述像素定位的高折射部分和位于平面上的所述高折射部分旁边的低折射部分，所述高折射部分和所述低折射部分的折射率之间的比率 满足入射光全反射的条件。 另一个实施方案是包含两个液晶单元的液晶装置，其中每个单元呈现单稳态取向。