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412 条记录 (耗时 0.038 秒)

    Reflection type active matrix liquid crystal apparatus
    5.
    发明授权
    Reflection type active matrix liquid crystal apparatus 失效
    反射型有源矩阵液晶装置

    公开(公告)号：US5251049A

    公开(公告)日：1993-10-05

    申请号：US717066

    申请日：1991-06-18

    申请人： Masuji Sato ,  Akira Tanaka ,  Noboru Wakatsuki

    发明人： Masuji Sato ,  Akira Tanaka ,  Noboru Wakatsuki

    IPC分类号： G02F1/137 ,  G02F1/139 ,  G02F1/133

    CPC分类号： G02F1/1393 ,  G02F2203/02

    摘要： A reflection type liquid crystal apparatus comprising a liquid crystal panel (26) composed of a pair of first and second opposed plates (30, 32) for accommodating a liquid crystal (34) therebetween. A reflecting layer (28) is provided in the inner surface of the second plate, and the first plate is transparent. A common electrode (36) is provided in the first plate, and picture electrodes (38) are located in the second plate. A beam splitter (24) is located in front of the liquid crystal panel (26) for supplying polarized light to the first plate and for selectively transmitting polarized light emerging from the liquid crystal panel (24). The liquid crystal (34) comprises a nematic liquid crystal material having a positive birefringence and arranged in a homogeneous orientation with a constant director (n). This arrangement being such that incident polarized light is propagated in the liquid crystal in a double refraction mode with a first birefringence value and the emerging polarized light thereof is substantially transmitted by the second polarizer means (24) when a voltage is not applied to the liquid crystal; and incident polarized light is propagated in the liquid crystal in a double refraction mode with a second birefringence value smaller than the first birefringence value and the emerging polarized light thereof is not substantially transmitted by the second polarizer means (24) when a voltage is applied to the liquid crystal.

    Method of fabricating optical switch
    6.
    发明授权
    Method of fabricating optical switch 失效
    制造光电开关的方法

    公开(公告)号：US5187758A

    公开(公告)日：1993-02-16

    申请号：US730721

    申请日：1991-07-16

    申请人： Masanori Ueda ,  Hisashi Sawada ,  Akira Tanaka ,  Noboru Wakatsuki

    发明人： Masanori Ueda ,  Hisashi Sawada ,  Akira Tanaka ,  Noboru Wakatsuki

    IPC分类号： G02B6/35 ,  G02B6/36

    CPC分类号： G02B6/3508 ,  G02B6/3616 ,  G02B6/3546 ,  G02B6/3572 ,  G02B6/3578 ,  G02B6/358 ,  G02B6/3652

    摘要： A method of fabricating an optical switch including a stationary support member, a movable support member, and at least one pair of optical fibers, the pair of optical fibers being supported on the stationary and movable support members, respectively, so that an optical path between optical fibers is changed by moving the movable support member. The method comprises the steps of preparing a guide with V-shaped grooves, securing at least one optical fiber element on the surface of the guide, bridging and fixing the guide on the stationary and movable support members, and separating the guide along at least a line extending between the stationary and movable support members. Thus, the guide and the optical fiber element is separated into a first part supported by the stationary support member and a second part supported by the movable support member, to constitute the optical switch having at least one pair of optical fibers.

    Fluorescent optical disk
    9.
    发明授权
    Fluorescent optical disk 失效
    荧光光盘

    公开(公告)号：US06219329B1

    公开(公告)日：2001-04-17

    申请号：US07642848

    申请日：1991-01-18

    申请人： Akira Tanaka ,  Hisashi Sawada ,  Yuji Kojima

    发明人： Akira Tanaka ,  Hisashi Sawada ,  Yuji Kojima

    IPC分类号： G11B724

    CPC分类号： G11B7/0045 ,  G11B7/24 ,  G11B7/244 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/257 ,  G11B7/2585 ,  G11B2007/24624

    摘要： An optical disk comprising a plastic disk body having fluorescent coloring material dispersed therein. Pits representing stored data are formed on a first main surface of the plastic disk body, a reflecting layer is formed over the first main surface having the pits and a protecting layer is formed over the reflecting layer. When the optical disk is subjected to an external light, the fluorescent coloring material emits a radiation of a fluorescent light of a particular color, which can be seen at the opposite, second main surface and the outer circumferential surface of the optical disk. The optical disk can be also subjected to a laser beam for regenerating data stored in the optical disk.

    摘要翻译： 一种光盘，包括分散有荧光着色材料的塑料盘体。 表示存储数据的凹坑形成在塑料盘体的第一主表面上，在具有凹坑的第一主表面上形成反射层，并且在反射层上形成保护层。 当光盘受到外部光时，荧光着色材料发射特定颜色的荧光的光，这可以在光盘的相对的，第二主表面和外圆周表面上看到。 光盘也可以受到用于再生存储在光盘中的数据的激光束。