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    Transmission screen and projection display
    1.
    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。

    Fresnel optical element and projection display device
    2.
    发明申请
    Fresnel optical element and projection display device 有权
    菲涅尔光学元件和投影显示装置

    公开(公告)号：US20060227433A1

    公开(公告)日：2006-10-12

    申请号：US10545569

    申请日：2004-10-04

    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： 多个菲涅耳棱镜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，在那里从投影仪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， 非光入射表面具有角度τ'，其具有与多个菲涅耳棱镜中的每一个的棱镜顶角τ不同的反射表面12b。 结果，不会穿过折射表面的多个菲涅尔棱镜中的每一个的折射表面12a反射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。

    Transparent screen and projection display apparatus
    3.
    发明授权
    Transparent screen and projection display apparatus 有权
    透明屏幕和投影显示设备

    公开(公告)号：US07075718B2

    公开(公告)日：2006-07-11

    申请号：US10501580

    申请日：2002-11-26

    申请人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Shuso Wadaka ,  Kohei Teramoto ,  Kuniko Kojima ,  Shigekazu Tsuda

    发明人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Shuso Wadaka ,  Kohei Teramoto ,  Kuniko Kojima ,  Shigekazu Tsuda

    IPC分类号： G03B27/60 ,  G03B21/56 ,  G02B27/10 ,  G02B3/08

    CPC分类号： G03B21/62 ,  G03B21/10 ,  G03B21/625

    摘要： A transparent screen includes a refraction/total reflection plate in a form of a Fresnel lens, the refraction/total reflection plate having a sawtooth surface upon which light is incident and another surface via which the light exits, and an image formation/display plate for forming a projection image from the light that exits from the refraction/total reflection plate. Refraction slating surface portions each for refracting incident light towards the other surface of the refraction/total reflection plate, transmission slating surface portions each for making incident light pass therethrough, and total reflection slating surface portions each for reflecting incident light passing through one transmission slating surface portion towards the other surface of the refraction/total reflection plate being formed concentrically on the sawtooth surface of the refraction/total reflection plate.

    摘要翻译： 透明屏幕包括菲涅耳透镜形式的折射/全反射板，折射/全反射板具有光入射的锯齿表面和光出射的另一表面，以及用于 从从折射/全反射板出射的光形成投影图像。 用于将入射光折射到折射/全反射板的另一个表面的折射板条表面部分，用于使入射光通过的透射板条表面部分和用于反射穿过一个透射板条表面的入射光的全反射板条表面部分 折射/全反射板的另一个表面的部分同心地形成在折射/全反射板的锯齿表面上。

    Transparent screen and projection display apparatus
    6.
    发明申请
    Transparent screen and projection display apparatus 有权
    透明屏幕和投影显示设备

    公开(公告)号：US20050105177A1

    公开(公告)日：2005-05-19

    申请号：US10501580

    申请日：2002-11-26

    申请人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Shuso Wadaka ,  Kohei Teramoto ,  Kuniko Kojima ,  Shigekazu Tsuda

    发明人： Hiroshi Suzuki ,  Takao Endo ,  Shinsuke Shikama ,  Shuso Wadaka ,  Kohei Teramoto ,  Kuniko Kojima ,  Shigekazu Tsuda

    IPC分类号： G03B21/10 ,  G03B21/60 ,  G03B21/62

    CPC分类号： G03B21/62 ,  G03B21/10 ,  G03B21/625

    摘要： A transparent screen is provided with a refraction/total reflection plate in a form of a Fresnel lens, the refraction/total reflection plate having a sawtooth light-incidence-side surface upon which light to be projected is incident, and a light-emitting-side surface via which the light to be projected exits, and an image formation/display plate for forming a projection image from the light that exits from the refraction/total reflection plate. A plurality of refraction slating surface portions each for refracting an incident ray of light to be projected towards the light-emitting-side surface of the refraction/total reflection plate, a plurality of transmission slating surface portions each for making an incident ray of light to be projected pass therethrough, and a plurality of total reflection slating surface portions each for reflecting an incident ray of light passing through one of the plurality of transmission slating surface portions towards the light-emitting-side surface of the refraction/total reflection plate being formed concentrically on the sawtooth light-incidence-side surface of the refraction/total reflection plate. The refraction/total reflection plate is formed of a transparent material in which no scattering particles are dispersedly disposed.

    摘要翻译： 透明屏幕设置有菲涅尔透镜形式的折射/全反射板，折射/全反射板具有入射光的锯齿光入射侧表面，并且发光 - 要投射的光的侧面出射的侧表面，以及用于从从折射/全反射板离开的光形成投影图像的图像形成/显示板。 多个折射台面部分，每个用于折射入射到所述折射/全反射板的发光侧表面的入射光线;多个透射板条表面部分，用于将入射光线 投射通过其中，并且形成多个全反射平板表面部分，每个全反射板条表面部分用于将穿过多个透射板条表面部分中的一个的入射光线朝向折射/全反射板的发光侧表面反射 同心地对折射/全反射板的锯齿光入射侧表面。 折射/全反射板由不散射散射颗粒的透明材料形成。

    Fresnel optical element and projection display device
    7.
    发明授权
    Fresnel optical element and projection display device 有权
    菲涅尔光学元件和投影显示装置

    公开(公告)号：US07242536B2

    公开(公告)日：2007-07-10

    申请号：US10545569

    申请日：2004-10-04

    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 refracting surface 12 thereof includes a non-light incidence surface 12c upon which any ray of light 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 reflecting surface 12b which is different from the prism apex angle τ of each of the plurality of Fresnel prisms. As a result, a ray of light reflected by the refracting surface 12a of each of the plurality of Fresnel prisms without passing through the refracting surface can be preventing from emerging, as unnecessary light, toward the viewer's line of sight.

    摘要翻译： 多个菲涅耳棱镜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，在那里从投影仪1发射的任何光线不会直接入射，因为它被另一菲涅尔棱镜12截取 ，非光入射表面具有角度τ'，其具有与多个菲涅耳棱镜中的每一个的棱镜顶角τ不同的反射表面12b。 结果，不会穿过折射表面的多个菲涅尔棱镜中的每一个的折射表面12a反射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。

    Fresnel optical element and projection display apparatus
    10.
    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。