Prism optical device and polarizing optical device
    1.
    发明授权
    Prism optical device and polarizing optical device 失效
    棱镜光学器件和偏振光学器件

    公开(公告)号:US5440424A

    公开(公告)日:1995-08-08

    申请号:US20268

    申请日:1993-02-18

    CPC分类号: G02B27/283 G02B5/04

    摘要: A polarizer optical device for receiving and transmitting light is provided. The polarizer optical device includes a light separating section for separating the light into two polarization components which are othogonal with respect to one another. Further, the optical device is provided with a polarization rotating section for rotating the two polarization components so that a phase difference between the two polarization components othogonal to each other is 1/2.lambda.. Finally, a light combining section is provided for combining the light into a outputted light beam. The light combining section may be formed with a combination of birefringent prisms and isotropic mediums interfacing one another. In these configurations, the refractive index of each prism or medium is selected so that an angle formed with two unparallel incident lights differs from an angle formed with two output or transmitted lights. The two unparallel incident lights and the two output lights travel on a plane surface which is vertical with respect to the interface surface between the two prisms.

    摘要翻译: 提供了一种用于接收和发射光的偏振器光学装置。 偏振器光学装置包括光分离部分,用于将光分离成彼此相邻正交的两个偏振分量。 此外,光学装置设置有用于旋转两个偏振分量的偏振旋转部分,使得彼此正交的两个偏振分量之间的相位差为1/2λ。 最后,提供一个光合成部分,用于将光组合成输出的光束。 光组合部分可以由双折射棱镜和各向同性介质彼此接合的组合形成。 在这些配置中,选择每个棱镜或介质的折射率,使得与两个不平行入射光形成的角度与由两个输出或透射光形成的角度不同。 两个不平行的入射光和两个输出光在相对于两个棱镜之间的界面表面垂直的平面上行进。

    Light propagation structure and optical display device of optical system, light propagation method of optical system, and display method of optical display device
    3.
    发明授权
    Light propagation structure and optical display device of optical system, light propagation method of optical system, and display method of optical display device 有权
    光学系统的光传播结构和光学显示装置,光学系统的光传播方法以及光学显示装置的显示方法

    公开(公告)号:US07234822B2

    公开(公告)日:2007-06-26

    申请号:US11015420

    申请日:2004-12-20

    IPC分类号: G03B21/14 G02F1/1335

    CPC分类号: H04N9/315

    摘要: A projection-type display device 100 including a light source 10, a luminance modulation light valve having a plurality of pixels capable of independently controlling a transmission factor T1, dichroic mirrors 44a and 44b that divided the light from the luminance modulation light valve into the three primary colors of red, green and blue, a plurality of color modulation light valves into which light divided with dichroic mirrors 44a and 44b respectively enters and have a plurality of pixels capable of independently controlling a transmission factor T2, and a dichroic prism 48 that synthesizes light from each of the color modulation light valves, and is provided with a relay optical system 16 on the light path of a luminance modulation section 14 and a color modulation section 18 that forms an optical image of the luminance modulation light valve on the pixel surfaces of each of the color modulation light valves.

    摘要翻译: 包括光源10的投影型显示装置100,具有能够独立地控制透射系数T 1的多个像素的亮度调制光阀,将来自亮度调制光阀的光分开的二向色镜44a和44b 分成红色,绿色和蓝色的三原色的多个调色光阀,分色入射分色镜44a和44b的光分别入射到其中并具有能够独立地控制透射因子T 2的多个像素;以及 合成来自每个调色光阀的光的二向色棱镜48,并且在亮度调制部分14和色调制部分18的光路上设置有中继光学系统16,色调调制部分18形成亮度调制光学图像 每个调色光阀的像素表面上的光阀。

    Light propagation structure and optical display device of optical system, light propagation method of optical system, and display method of optical display device
    5.
    发明申请
    Light propagation structure and optical display device of optical system, light propagation method of optical system, and display method of optical display device 有权
    光学系统的光传播结构和光学显示装置,光学系统的光传播方法以及光学显示装置的显示方法

    公开(公告)号:US20050271312A1

    公开(公告)日:2005-12-08

    申请号:US11015420

    申请日:2004-12-20

    CPC分类号: H04N9/315

    摘要: A projection-type display device 100 including a light source 10, a luminance modulation light valve having a plurality of pixels capable of independently controlling a transmission factor T1, dichroic mirrors 44a and 44b that divided the light from the luminance modulation light valve into the three primary colors of red, green and blue, a plurality of color modulation light valves into which light divided with dichroic mirrors 44a and 44b respectively enters and have a plurality of pixels capable of independently controlling a transmission factor T2, and a dichroic prism 48 that synthesizes light from each of the color modulation light valves, and is provided with a relay optical system 16 on the light path of a luminance modulation section 14 and a color modulation section 18 that forms an optical image of the luminance modulation light valve on the pixel surfaces of each of the color modulation light valves.

    摘要翻译: 包括光源10的投影型显示装置100,具有能够独立地控制透射系数T 1的多个像素的亮度调制光阀,将来自亮度调制光阀的光分开的二向色镜44a和44b 分成红色,绿色和蓝色的三原色的多个调色光阀,分色入射分色镜44a和44b的光分别入射到其中并具有能够独立地控制透射因子T 2的多个像素;以及 合成来自每个调色光阀的光的二向色棱镜48,并且在亮度调制部分14和色调制部分18的光路上设置有中继光学系统16,色调调制部分18形成亮度调制光学图像 每个调色光阀的像素表面上的光阀。

    Illumination apparatus, projector, and illumination method
    6.
    发明授权
    Illumination apparatus, projector, and illumination method 有权
    照明装置,投影仪和照明方法

    公开(公告)号:US08496335B2

    公开(公告)日:2013-07-30

    申请号:US12423296

    申请日:2009-04-14

    申请人: Yoshitaka Itoh

    发明人: Yoshitaka Itoh

    摘要: A projector includes an illumination optical system, a light modulation element, and a projection optical system. The illumination optical system includes a first light source section, a plurality of second light source sections, and an optical axis conversion element. The optical axis conversion element emits the light beam, which is input from the first light source section, so that an exit optical axis of the light beam approximately matches with an illumination optical axis, and emits the light beams, which are respectively input from the plurality of second light source sections, so that exit optical axes of the light beams intersect the exit optical axis of the light beam from the first light source section between the optical axis conversion element and the light modulation element.

    摘要翻译: 投影仪包括照明光学系统,光调制元件和投影光学系统。 照明光学系统包括第一光源部分,多个第二光源部分和光轴转换元件。 光轴转换元件发射从第一光源部分输入的光束,使得光束的出射光轴与照明光轴近似匹配,并且发射分别从 多个第二光源部分,使得光束的出射光轴与光轴转换元件和光调制元件之间的来自第一光源部分的光束的出射光轴相交。

    Illuminator and projector
    7.
    发明授权
    Illuminator and projector 有权
    照明器和投影机

    公开(公告)号:US08308307B2

    公开(公告)日:2012-11-13

    申请号:US12543232

    申请日:2009-08-18

    申请人: Yoshitaka Itoh

    发明人: Yoshitaka Itoh

    IPC分类号: G03B21/20

    摘要: An illuminator includes: a first light source and a second light source that are disposed substantially symmetrically with respect to an illumination optical axis, wherein each of the first and second light sources includes an arc tube, a first reflector disposed to surround part of the entire space around the optical axis of the arc tube, the first reflector reflecting the light emitted from the arc tube toward an object to be illuminated, and a second reflector disposed on the opposite side of the optical axis of the arc tube to the first reflector, the second reflector reflecting the light emitted from the arc tube toward the first reflector.

    摘要翻译: 照明器包括:第一光源和第二光源,其相对于照明光轴基本对称地设置,其中第一和第二光源中的每一个包括电弧管,第一反射器,被设置为围绕整个部分 围绕光电管的光轴的空间,第一反射器将从电弧管发射的光朝向被照射物体反射,以及第二反射器,设置在与第一反射器的电弧管的光轴相反的一侧, 所述第二反射器将从所述电弧管发射的光朝向所述第一反射器反射。

    Polarization conversion element, polarization illuminator, display using the same illuminator, and projector
    8.
    再颁专利
    Polarization conversion element, polarization illuminator, display using the same illuminator, and projector 失效
    极化转换元件,偏振照明器,使用相同照明器的显示器和投影仪

    公开(公告)号:USRE39951E1

    公开(公告)日:2007-12-25

    申请号:US09987953

    申请日:1997-06-25

    IPC分类号: G02B27/10 G02B5/30

    摘要: A polarizing conversion device in accordance with the invention includes a first optical element for condensing an incident beam and forming a plurality of intermediate beams spatially separated from one another, and a second optical element for spatially separating each intermediate beam into two polarized beams and aligning the polarization directions of the polarized beams, thereby obtaining the same type of polarized beams. In the second optical element, a shading plate is placed to prevent light from directly entering a section corresponding to a reflecting plane of a polarizing separation unit array. Since the ability of separating the intermediate beam into two polarized beams is thereby enhanced, it is possible to perform conversion into the same type of polarized beams polarized in the same direction, with high efficiency.

    摘要翻译: 根据本发明的偏振转换装置包括用于聚集入射光束并形成彼此空间分离的多个中间光束的第一光学元件和用于将每个中间光束空间分离成两个偏振光束并将其对准 偏振光束的极化方向,从而获得相同类型的偏振光束。 在第二光学元件中,设置遮光板以防止光直接进入与偏振分离单元阵列的反射平面对应的部分。 由于将中间光束分离成两个偏振光束的能力由此增强,所以可以高效率地进行向相同方向偏振的相同类型的偏振光束的转换。

    Projection display
    9.
    发明授权
    Projection display 失效
    投影显示

    公开(公告)号:US6036318A

    公开(公告)日:2000-03-14

    申请号:US11097

    申请日:1998-01-27

    申请人: Yoshitaka Itoh

    发明人: Yoshitaka Itoh

    IPC分类号: H04N5/74 H04N9/31 G03B21/14

    CPC分类号: H04N9/3167 H04N5/7441

    摘要: A projection type display apparatus 1 is roughly composed of a polarized light beam illumination device 100, a polarization beam splitter 200, a reflection type liquid crystal device 300, and a projection optical system 500. The polarized light beam illumination device 100 includes a light source unit 110, a first optical element 120 and a second optical element 130, and the light beams emerging from the light source unit 110 are divided into a plurality of intermediate light beams by the first optical element 120 and thereafter converted into polarized light beams having approximately one kind of a polarization direction by the second optical element 130. The polarized light beams are reflected at the polarization beam splitter 200 and modulated by the reflection type liquid crystal device 300 and thereafter projected to a projection surface 600 through the projection optical system 500. According to the projection type display apparatus arranged as described above, the length of a light path is shortened to thereby prevent light loss as well as uneven brightness to a region to be illuminated, by which a projected image having uniform brightness and good quality can be obtained.

    摘要翻译: PCT No.PCT / JP97 / 01819 Sec。 371日期:1998年1月27日 102(e)日期1998年1月27日PCT提交1997年5月29日PCT公布。 公开号WO97 / 45768 日期1997年12月4日投影型显示装置1大致由偏振光束照明装置100,偏振光束分离器200,反射型液晶装置300和投影光学系统500构成。偏振光束照明装置 100包括光源单元110,第一光学元件120和第二光学元件130,并且从光源单元110出射的光束被第一光学元件120分成多个中间光束,然后转换成 通过第二光学元件130具有大约一种偏振方向的偏振光束。偏振光束在偏振分束器200处被反射并被反射型液晶装置300调制,然后通过 投影光学系统500.根据如上所述配置的投影型显示装置, 缩短了光路的长度,从而可以防止光照损失以及亮度不均匀的亮度,从而可以获得具有均匀亮度和良好质量的投影图像。

    Projection display and illuminating optical system for it
    10.
    发明授权
    Projection display and illuminating optical system for it 失效
    投影显示和照明光学系统

    公开(公告)号:US5973840A

    公开(公告)日:1999-10-26

    申请号:US91834

    申请日:1998-06-29

    摘要: An apparatus which makes dark lines due to a central axis of a cross dichroic prism sufficiently inconspicuous. In a second lens array, minute lenses arranged on the same column include three different types of minute lenses having optical axes at different positions. Each row of the minute lenses consists of one of the three types of minute lenses. Partial light fluxes respectively passing through the minute lenses have optical axes at different positions relative to a center of a lighting area of a liquid-crystal light bulb, so as to illuminate different illumination areas.

    摘要翻译: PCT No.PCT / JP97 / 03901 Sec。 371日期1998年6月29日第 102(e)日期1998年6月29日PCT 1997年10月27日PCT公布。 公开号WO98 / 19212 PCT 日期1998年7月5日由于交叉二向色棱镜的中心轴足够不明显而使暗线产生的设备。 在第二透镜阵列中,布置在同一列上的微透镜包括在不同位置具有光轴的三种不同类型的微透镜。 每一行分钟镜都由三种类型的微型镜头组成。 分别通过微透镜的部分光束相对于液晶灯泡的照明区域的中心具有不同位置的光轴,以照亮不同的照明区域。