利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

86 条记录 (耗时 0.043 秒)

    Projection type display apparatus
    51.
    发明授权
    Projection type display apparatus 失效
    投影式显示装置

    公开(公告)号：US5936696A

    公开(公告)日：1999-08-10

    申请号：US778267

    申请日：1997-01-02

    申请人： Akira Daijogo ,  Shinsuke Shikama

    发明人： Akira Daijogo ,  Shinsuke Shikama

    IPC分类号： G02F1/13 ,  G02F1/133 ,  G02F1/1335 ,  G03B21/16 ,  H04N9/31 ,  G02F1/1333

    CPC分类号： G02F1/133382 ,  G02F1/133509 ,  H04N9/3105 ,  H04N9/3144

    摘要： A projection type display apparatus including a heater for heating the liquid crystal light valve. The heater includes a transparent electrically conductive film formed on a transparent substrate and is supplied with electric power therethrough to generate heat. The supplied electric power is controlled in accordance with the temperature of the liquid crystal light valve so that the liquid crystal layer in the liquid crystal light valve is in its optimum operating temperature range. The heater may include a filter through which the illumination luminous flux is incident upon the liquid crystal light valve. The filter passes only visible light when inclined within a certain range of angle with the luminous flux, and passes a progressively large amount of heat rays with increasing deviation of the angle from the certain range. A cold mirror and reflecting mirror may be used in place of the filter. The cold mirror reflects visible light of the illumination luminous flux to the liquid crystal light valve and passes heat rays to the reflecting mirror. The reflecting mirror is at an angle with the heat rays and reflects the heat rays to the liquid crystal light valve. The amount of the heat rays reflected to the liquid crystal light valve may be adjusted by varying the angle at which the heat rays is incident on the reflecting mirror.

    摘要翻译： 一种投影型显示装置，包括用于加热液晶光阀的加热器。 加热器包括形成在透明基板上的透明导电膜，并通过其供电以产生热量。 所提供的电力根据液晶光阀的温度来控制，使得液晶光阀中的液晶层处于其最佳工作温度范围。 加热器可以包括滤光器，照明光束通过该滤光器入射到液晶光阀上。 当在与光通量的一定角度范围内倾斜时，滤光器仅通过可见光，并且随着角度偏离一定范围的增加的偏差，逐渐大量的热射线通过。 可以使用冷镜和反射镜代替过滤器。 冷镜将照明光通量的可见光反射到液晶光阀并将热射线传递到反射镜。 反射镜与热射线成一角度并将热射线反射到液晶光阀。 反射到液晶光阀的热射线的量可以通过改变热射线入射到反射镜上的角度来调节。

    Retrofocus lens system
    52.
    发明授权
    Retrofocus lens system 失效
    后视镜系统

    公开(公告)号：US5745297A

    公开(公告)日：1998-04-28

    申请号：US678691

    申请日：1996-07-11

    申请人： Toshihide Kaneko ,  Shinsuke Shikama ,  Eiichi Toide

    发明人： Toshihide Kaneko ,  Shinsuke Shikama ,  Eiichi Toide

    IPC分类号： G02B13/04 ,  G02B13/16 ,  G02B3/00

    CPC分类号： G02B13/22 ,  G02B13/04

    摘要： A retrofocus lens system comprises, in order from a large conjugate side: a first lens group having a negative refracting power and including a plurality of lens elements; a second lens group having a positive refracting power; and a third lens group having a positive refracting power. Each of the lens elements of the first lens group has a negative refracting power. Following conditional expressions (1) to (3) are satisfied: 1.3

    摘要翻译： 复镜透镜系统从大共轭侧依次包括具有负折射率并包括多个透镜元件的第一透镜组; 具有正折射率的第二透镜组; 以及具有正折射率的第三透镜组。 第一透镜组的每个透镜元件具有负的折射光焦度。 满足条件式（1）〜（3）：1.3

    Optical head with a tilt correction servo mechanism
    53.
    发明授权
    Optical head with a tilt correction servo mechanism 失效
    具有倾斜校正伺服机构的光头

    公开(公告)号：US5216649A

    公开(公告)日：1993-06-01

    申请号：US368180

    申请日：1989-06-19

    申请人： Manabu Koike ,  Shinsuke Shikama ,  Eiichi Toide ,  Toru Yoshihara ,  Takashi Saito

    发明人： Manabu Koike ,  Shinsuke Shikama ,  Eiichi Toide ,  Toru Yoshihara ,  Takashi Saito

    IPC分类号： G11B7/09 ,  G11B7/095 ,  G11B7/135

    CPC分类号： G11B7/1353 ,  G11B7/0956 ,  G11B7/1365 ,  G11B7/1374 ,  G11B7/1395

    摘要： An optical head device includes a tilt servo mechanism using photodetectors for detecting rays of light reflected from the recording surface of an optical disk. The rays of light are obtained from a laser diode used as a light source for information reproduction. According to one aspect; prisms are formed on the flange of a converging lens to refract peripheral portions of the light emitted from the laser diode for tilt detection. According to another aspect, secondary diffraction grating domains at the sides of the primary diffraction domain of a diffraction grating diffract peripheral portions of the emitted rays of light for tilt detection. According to another aspect, a mirror reflects peripheral portions of the emitted rays from the laser diode. According to a further aspect a mirror reflects the light from the laser diode passing through a beam splitter. Each photodetector receiving the light reflected from the recording surface of the disk may be partitioned into two detector cells, and a tilt signal is obtained as the differential output of the two cells.

    Automatic focusing device
    54.
    发明授权
    Automatic focusing device 失效
    自动对焦装置

    公开(公告)号：US4625303A

    公开(公告)日：1986-11-25

    申请号：US647124

    申请日：1984-09-04

    申请人： Shinsuke Shikama ,  Mitsushige Kondou ,  Nobumasa Egashira ,  Kazuo Okada

    发明人： Shinsuke Shikama ,  Mitsushige Kondou ,  Nobumasa Egashira ,  Kazuo Okada

    IPC分类号： G02B7/28 ,  G11B7/09 ,  G11B7/13 ,  G11B7/00

    CPC分类号： G11B7/0909 ,  G11B7/094 ,  G11B7/13

    摘要： An automatic focusing device for controlling the position of the objective lens relative to the information recording medium is provided with an astigmatic optical system which receives the reflected light beam reflected by the information recording medium. The light receiving surface of a light detector included in the astigmatic optical system consists of a central light receiving section formed approximatley symmetrically with respect to two axes intersecting each other perpendicularly and having a constricted central portion, and two side light receiving sections formed approximately symmetrically with respect to those two axes and opposite to each other. The light reception signal given by the central light receiving section and the light reception signals given by the side light receiving sections are fed to a focal position detecting circuit which gives a signal corresponding to the deviation of the objective lens from the focused position, on the basis of the light reception signals given thereto.

    摘要翻译： 设置有用于控制物镜相对于信息记录介质的位置的自动对焦装置，其具有接收由信息记录介质反射的反射光束的像散光学系统。 包括在像散光学系统中的光检测器的光接收表面由中心光接收部分组成，该中心光接收部分相对于彼此垂直相交的两个轴对称地形成并具有收缩的中心部分，以及两个侧光接收部分，大致对称地形成 相对于这两个轴线彼此相对。 由中央光接收部分给出的光接收信号和由侧光接收部分给出的光接收信号被馈送到聚焦位置检测电路，该焦点位置检测电路将对应于物镜偏离聚焦位置的信号， 给出的光接收信号的基础。

    Fresnel optical element and projection display apparatus
    56.
    发明申请
    Fresnel optical element and projection display apparatus 有权
    菲涅尔光学元件和投影显示装置

    公开(公告)号：US20090067062A1

    公开(公告)日：2009-03-12

    申请号：US11802544

    申请日：2007-05-23

    申请人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Kohei Teramoto

    发明人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Kohei Teramoto

    IPC分类号： G02B3/08

    CPC分类号： G02B5/02 ,  G02B3/08 ,  G02B5/045 ,  G03B21/625

    摘要： Each of a plurality of Fresnel prisms 12 is formed so that a refractive surface 12 thereof includes a non-light incidence surface 12c upon which any light ray emitted from a projector 1 is not directly incident because it is intercepted by another Fresnel prism 12, the non-light incidence surface having an angle τ′ with a reflective surface 12b which is different from the prism apex angle τ of each of the plurality of Fresnel prisms. As a result, a light ray reflected by the refractive surface 12a of each of the plurality of Fresnel prisms without passing through the refractive surface can be preventing from emerging, as unnecessary light, toward the viewer's line of sight.

    摘要翻译： 多个菲涅尔棱镜12中的每一个被形成为使得其折射表面12包括非投光表面12c，其中从投影仪1发射的任何光线不被直接入射，因为它被另一菲涅尔棱镜12截取， 具有角度τ'的非光入射表面具有与多个菲涅尔棱镜中的每一个的棱镜顶角τ不同的反射表面12b。 结果，由多个菲涅尔棱镜中的每一个的折射表面12a反射而不穿过折射表面的光线可以防止作为不必要的光朝向观察者的视线而出现。

    Image display system
    58.
    发明授权
    Image display system 有权
    图像显示系统

    公开(公告)号：US07237908B2

    公开(公告)日：2007-07-03

    申请号：US11555998

    申请日：2006-11-02

    申请人： Hiroshi Suzuki ,  Kohei Teramoto ,  Shinsuke Shikama ,  Shuso Wadaka

    发明人： Hiroshi Suzuki ,  Kohei Teramoto ,  Shinsuke Shikama ,  Shuso Wadaka

    IPC分类号： G03B21/22 ,  G03B21/14 ,  G03B21/28 ,  G03B21/56 ,  G03B21/60

    CPC分类号： G03B21/10

    摘要： An image display system includes a light valve 14 for providing image information to light converged by a converging lens 13 and for emitting the light, a projective optical system 20 including a refractive optical lens 21 for projecting the light from the light valve 14 and a convex mirror 22 for reflecting the light from the refractive optical lens 21 by using a reflecting surface thereof having negative power and for enlarging and projecting the reflected light, and a display 30 for receiving the light from the projective optical system 20 by way of a receiving surface 30A, wherein the light valve is placed away from an optical axis 23 of the projective optical system 20 and between a front surface of the display 30 and a rear surface of the projective optical system 20.

    摘要翻译： 图像显示系统包括：光阀14，用于向由会聚透镜13会聚的光提供图像信息并发射光;投影光学系统20，包括用于投射来自光阀14的光的折射光学透镜21; 反射镜22，用于通过使用具有负功率的反射表面反射来自折射光学透镜21的光并用于放大和投影反射光;以及显示器30，用于通过接收表面接收来自投影光学系统20的光 其中，所述光阀被放置为远离所述投影光学系统20的光轴23，并且在所述显示器30的前表面和所述投影光学系统20的后表面之间。

    Transmission screen and projection display
    60.
    发明授权
    Transmission screen and projection display 有权
    传输屏幕和投影显示

    公开(公告)号：US07079318B2

    公开(公告)日：2006-07-18

    申请号：US10489893

    申请日：2002-05-28

    申请人： Shinsuke Shikama ,  Hiroshi Suzuki ,  Kohei Teramoto ,  Akihisa Miyata

    发明人： Shinsuke Shikama ,  Hiroshi Suzuki ,  Kohei Teramoto ,  Akihisa Miyata

    IPC分类号： G03B21/60 ,  G03B21/56 ,  G02B27/12

    CPC分类号： G03B21/625

    摘要： A transmission screen has a refraction total reflection Fresnel lens plate, a stray light eliminating plate, and an image display plate. The stray light eliminating plate has a condensing lens array and black stripes. The array has unit lenses arranged at an incident plane of the transparent substrate in a periodic structure in an up-and-down direction. The black stripes have transparent sections placed near condensing light points of the unit lens and opaque sections around the condensing light points of the unit lenses. The sections are alternately arranged at the outgoing plane of the transmission substrate in a periodic structure in an up-and-down direction. The image display plate has lenticular lenses in which unit lenses are arranged in a periodic structure in a horizontal direction at an incident plane of the transmission substrate of a scattering characteristic capable of scattering light fluxes.

    摘要翻译： 透射屏具有折射全反射菲涅尔透镜板，杂散光消除板和图像显示板。 杂散光消除板具有聚光透镜阵列和黑色条纹。 阵列具有在上下方向上以周期性结构布置在透明基板的入射面处的单位透镜。 黑色条纹具有放置在单位透镜的聚光点附近的透明部分和单元透镜的聚光点周围的不透明部分。 这些部分在上下方向上以周期性结构交替布置在传输基板的出射平面上。 图像显示板具有双凸透镜，其中单位透镜在能够散射光束的散射特性的透射基板的入射面处沿水平方向以周期性结构排列。