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    Illuminating optical system and projector utilizing the same
    62.
    发明授权
    Illuminating optical system and projector utilizing the same 失效
    照明光学系统和使用其的投影仪

    公开(公告)号：US5833341A

    公开(公告)日：1998-11-10

    申请号：US453441

    申请日：1995-05-30

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

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

    IPC分类号： G02B17/00 ,  F21V7/09 ,  F21V13/04 ,  G02B17/06 ,  G03B21/20 ,  H04N9/31 ,  G03B21/28

    CPC分类号： H04N9/315 ,  F21V13/04 ,  F21V7/09 ,  G02B19/0023 ,  G02B19/0028 ,  G02B19/0047 ,  G03B21/2066

    摘要： This invention provides a projector capable of effectively utilizing the light from the light source and significantly reducing the light illuminating the outside of the area to be illuminated, thereby attaining an excellent efficiency of light utilization. In the illuminating system of the present invention provided with a light source and a reflector, there is further provided a circular reflector of a spherical surface, for returning the light, which emerges from the light source to the outside of the area to be illuminated, without being reflected on the reflector, to the light source. Also there is provided a flat mirror or a substantially spherical sub reflector for returning the light, which proceeds to the outside of the area to be illuminated, after being reflected on the reflector, to the light source. The sub reflector may be provided in the vicinity of the light source.

    摘要翻译： 本发明提供一种能够有效地利用来自光源的光并且显着地减少照亮被照射区域的外部的光的投影仪，从而获得优异的光利用效率。 在设置有光源和反射器的本发明的照明系统中，还设置有球面的圆形反射器，用于将从光源出射的光返回到被照射区域的外部， 而不在反射器上反射到光源。 还提供了一种平面镜或基本上球形的副反射器，用于使在光反射器被反射之后进入待照亮区域的外部的光返回到光源。 副反射器可以设置在光源附近。

    Method for mass-producing eccentric Fresnel lens sheets
    66.
    发明授权
    Method for mass-producing eccentric Fresnel lens sheets 失效
    批量生产偏心菲涅耳透镜片的方法

    公开(公告)号：US5690772A

    公开(公告)日：1997-11-25

    申请号：US268870

    申请日：1994-06-30

    申请人： Hideaki Mitsutake ,  Nobuo Minoura ,  Katsumi Kurematsu ,  Haruyuki Yanagi

    发明人： Hideaki Mitsutake ,  Nobuo Minoura ,  Katsumi Kurematsu ,  Haruyuki Yanagi

    IPC分类号： G03B21/62 ,  G02B3/08 ,  B32B31/00

    CPC分类号： G02B3/08 ,  Y10T156/1052 ,  Y10T156/1057 ,  Y10T156/1069

    摘要： A method for mass-producing eccentric Fresnel lens sheets comprising the steps of: preparing a number of concentric Fresnel lens sheets; dividing the concentric Fresnel lens sheets into a first set and a second set each including a plurality of Fresnel lens sheets; cutting out a plurality of first sheets each corresponding to one portion of the eccentric Fresnel lens sheet from each of the Fresnel lens sheets of the first set; cutting out a plurality of second sheets each corresponding to the other portion of the eccentric Fresnel lens sheet from each of the Fresnel lens sheets of the second set; and bonding each of the first sheets and each of the second sheets in such a manner that patterns on the first sheet and the second sheet are continuous to prepare a plurality of eccentric Fresnel lens sheet. The second set can include a third set and a fourth set and a plurality of third sheets are cut out from the third set and a plurality of fourth sheets are cut out from the fourth set. The third sheets and fourth sheets are bonded to the first sheets. The first sheets are relatively large rectangular sheets and the second sheets are small rectangular sheets.

    摘要翻译： 一种批量生产偏心菲涅耳透镜片的方法，包括以下步骤：制备多个同心的菲涅尔透镜片; 将同心菲涅耳透镜片分成第一组和第二组，每组包括多个菲涅尔透镜片; 从第一组的菲涅耳透镜片中的每一个切出与偏心菲涅尔透镜片的一部分相对应的多个第一片; 从第二组的菲涅耳透镜片中的每一个切出与偏心菲涅耳透镜片的另一部分相对应的多个第二片; 并且以使得第一片材和第二片材上的图案连续的方式接合每个第一片材和每个第二片材以制备多个偏心菲涅尔透镜片材。 第二组可以包括第三组和第四组，并且从第三组切出多个第三片，并且从第四组切出多个第四片。 第三片和第四片结合到第一片。 第一片是相对大的矩形片，第二片是小矩形片。

    Optical modulation device having different pretilts in the compensation cell(s)
    67.
    发明授权
    Optical modulation device having different pretilts in the compensation cell(s) 失效
    在补偿电池中具有不同预浸料的光调制装置

    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。

    Liquid crystal device with two monostable liquid crystal cells
    68.
    发明授权
    Liquid crystal device with two monostable liquid crystal cells 失效
    具有两个单稳态液晶单元的液晶装置

    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。