Stereoscopic display apparatus using cylindrical screen
    62.
    发明授权
    Stereoscopic display apparatus using cylindrical screen 失效
    使用圆柱形屏幕的立体显示装置

    公开(公告)号:US5589957A

    公开(公告)日:1996-12-31

    申请号:US383427

    申请日:1995-02-03

    摘要: A diffraction light modulated by a plane type phase distribution display device is deflected by an image formation optical system and is formed as an image onto a cylindrical screen surface and is diffused in the vertical direction by a unidirectional light diffusing section such as a lenticular lens or the like, so that a stereoscopic image can be seen. As a phase distribution display device, a liquid crystal device having pixels on the order of the wavelength in the circumferential direction and having coarse pixels in the radial direction is used. Thus, it is equivalent to that the phase distribution display device is located on the cylindrical surface. A cylindrical stereoscopic display can be performed by using the plane phase distribution display device.

    摘要翻译: 由平面型相位分布显示装置调制的衍射光被图像形成光学系统偏转,并且作为图像形成在圆筒形屏幕表面上,并且通过诸如双凸透镜的单向光漫射部分在垂直方向上扩散,或 使得可以看到立体图像。 作为相位分布显示装置,使用具有沿圆周方向的波长的像素并且具有径向粗略像素的像素的液晶装置。 因此,相位分布显示装置位于圆筒面上。 可以通过使用平面相位分布显示装置来执行圆柱形立体显示。

    Optical space switch device
    63.
    发明授权
    Optical space switch device 失效
    光学空间开关装置

    公开(公告)号:US5532855A

    公开(公告)日:1996-07-02

    申请号:US411162

    申请日:1995-03-27

    IPC分类号: H04Q3/52 H04J14/00

    摘要: The invention provides an optical space switch device which provides variable interconnection of one- or two-dimensionally spatially multiplexed optical signals. The optical space switch device comprises a plurality of optical space switch stages stacked to form a multi-input multi-output optical space switch. Each of the optical space switch stages comprises a plurality of 2-input 2-output optical switches, each of which comprises a polarization control layer and an optical path shifting layer. The optical path shifting layer has a bypass mode in which it outputs beams of light along optical axes and an exchange mode in which it shifts beams of light by diffraction.

    摘要翻译: 本发明提供一种提供一维或二维空间复用光信号的可变互连的光学空间开关装置。 光学空间开关装置包括堆叠形成多输入多输出光学空间开关的多个光学空间开关台。 每个光学空间开关级包括多个2输入2输出光开关,每个2输出光开关包括偏振控制层和光路移动层。 光路移动层具有旁路模式,其中沿着光轴输出光束,并且通过衍射来移动光束的交换模式。

    Optical space switch employing 2 parallel diffraction gratings and a
polarization rotating element
    65.
    发明授权
    Optical space switch employing 2 parallel diffraction gratings and a polarization rotating element 失效
    采用2个平行衍射光栅和偏振旋转元件的光学空间开关

    公开(公告)号:US5430561A

    公开(公告)日:1995-07-04

    申请号:US910779

    申请日:1992-07-08

    IPC分类号: H04Q3/52 G02F1/13 G02F1/137

    摘要: The invention provides an optical space switch device which provides variable interconnection of one- or two-dimensionally spatially multiplexed optical signals. The optical space switch device comprises a plurality of optical space switch stages stacked to form a multi-input multi-output optical space switch. Each of the optical space switch stages comprises a plurality of 2-input 2-output optical switches, each of which comprises a polarization control layer and an optical path shifting layer. The optical path shifting layer has a bypass mode in which it outputs beams of light along optical axes and an exchange mode in which it shifts beams of light by diffraction.

    摘要翻译: 本发明提供一种提供一维或二维空间复用光信号的可变互连的光学空间开关装置。 光学空间开关装置包括堆叠形成多输入多输出光学空间开关的多个光学空间开关台。 每个光学空间开关级包括多个2输入2输出光开关,每个2输出光开关包括偏振控制层和光路移动层。 光路移动层具有旁路模式,其中沿着光轴输出光束,并且通过衍射来移动光束的交换模式。

    Novel styrene copolymer
    67.
    发明授权
    Novel styrene copolymer 失效
    新型苯乙烯共聚物

    公开(公告)号:US4704438A

    公开(公告)日:1987-11-03

    申请号:US35022

    申请日:1987-04-06

    IPC分类号: C08F8/42 C08F212/12 C08F8/00

    CPC分类号: C08F8/42

    摘要: A novel styrene copolymer having a functional group, i.e. silyl group on the para-position of the aromatic ring, useful as a functional polymer, is provided. An effective process for the production thereof comprises contacting a random or block copolymer of p-methylstyrene and .alpha.-methylstyrene with an organolithium compound to lithiate partly the p-methyl group in the copolymer and then reacting the lithiated copolymer with a silicon compound represented by the general formula (R.sup.1)(R.sup.2)(R.sup.3)SiX wherein R.sup.1, R.sup.2 and R.sup.3 are, same or different, alkyl groups with 1 to 6 carbon atoms or alkenyl groups with 2 to 6 carbon atoms, at least one of R.sup.1, R.sup.2 and R.sup.3 being an alkenyl group, and X is a halogen atom.

    摘要翻译: 提供了一种具有官能团的新型苯乙烯共聚物,即芳族环对位上的甲硅烷基,可用作官能聚合物。 一种有效的制备方法包括使对甲基苯乙烯和α-甲基苯乙烯的无规或嵌段共聚物与有机锂化合物接触,使共聚物中的对甲基部分地锂化,然后使锂化共聚物与由 通式(R1)(R2)(R3)SiX其中R1,R2和R3相同或不同,具有1至6个碳原子的烷基或具有2至6个碳原子的链烯基,R1,R2和 R3是烯基,X是卤素原子。

    Automatic sound field correcting system
    68.
    发明授权
    Automatic sound field correcting system 失效
    自动声场校正系统

    公开(公告)号:US4694498A

    公开(公告)日:1987-09-15

    申请号:US793417

    申请日:1985-10-31

    IPC分类号: H04R3/04 H03G3/32 H03G5/16

    CPC分类号: H04S7/30 H03G3/32 H03G5/165

    摘要: An automatic sound field correcting system with graphic equalizer means to be provided in an audio signal supply line. A test signal such as a pink noise is radiated in the listening space and detected at a predetermined listening point to determine the detection frequency characteristic of the test signal, thereby to adjust the frequency characteristic of the graphic equalizer means. Thereafter, the frequency characteristic of the graphic equalized means is made equal to different band-pass filter characteristics, one after another, and each time the equalization is effected, the detected test signal is obtained through the grapic equalizer means for determination of the detected frequency characteristic of the test signal.

    摘要翻译: 一种具有图形均衡器装置的自动声场校正系统,被提供在音频信号供应线中。 诸如粉红噪声的测试信号在收听空间中被辐射并在预定的收听点被检测,以确定测试信号的检测频率特性,从而调整图形均衡器装置的频率特性。 此后,使图形均衡装置的频率特性一个接一个地等于不同的带通滤波器特性,并且每次实现均衡时,通过绘制均衡器装置获得检测的测试信号,以确定检测频率 测试信号的特性。