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196 条记录 (耗时 0.049 秒)

    Luminaire with improved light utilization efficiency
    22.
    发明授权
    Luminaire with improved light utilization efficiency 有权
    灯具具有改善的光利用效率

    公开(公告)号：US06552760B1

    公开(公告)日：2003-04-22

    申请号：US09506267

    申请日：2000-02-17

    申请人： Takeshi Gotoh ,  Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Tetsuya Hamada ,  Mari Sugawara ,  Keiji Hayashi ,  Noriyuki Ohashi ,  Hisashi Yamaguchi

    发明人： Takeshi Gotoh ,  Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Tetsuya Hamada ,  Mari Sugawara ,  Keiji Hayashi ,  Noriyuki Ohashi ,  Hisashi Yamaguchi

    IPC分类号： G02F11333

    CPC分类号： G02B27/285 ,  H04N9/315

    摘要： A lens array 22C has convex lenses 221 and 221C arranged in alternate and staggering manner to one another. In combination with a condenser lens 23, the convex lenses 221 form images of respective convex lenses 211 of a lens array 21 on a plane 24 to be illuminated in overlapping so that an illuminance distribution on the plane 24 is almost uniform, while the convex lenses 221C whose focal length is longer than that of the convex lenses 211 make on the plane 24 an illuminance distribution of a mountain-shape. Flat plate portions and concave lenses may be employed instead of the convex lenses 221C. A polarization conversion element comprises two elements and an element disposed therebetween with its longitudinal direction being perpendicular to the two element. The images of a light emitting part are included in band-shaped useful incident areas. A polarization conversion section comprises a middle part which is thin but has a larger divergent angle and side parts each has a smaller divergent angle and a simpler construction but is thicker with its size larger.

    摘要翻译： 透镜阵列22C具有以彼此交替且交错的方式布置的凸透镜221和221C。 与聚光透镜23组合，凸透镜221在重叠的平面24上形成透镜阵列21的各凸透镜211的图像，使得平面24上的照度分布几乎均匀，而凸透镜 焦距长于凸透镜211的焦距的221C2在平面24上形成山形的照度分布。 可以使用平板部分和凹透镜来代替凸透镜221C。 偏振转换元件包括两个元件和设置在其间的元件，其纵向方向垂直于两个元件。 发光部的图像包括在带状有用入射区域中。 偏振转换部分包括薄而具有较大发散角的中间部分，并且侧部分别具有较小的发散角和更简单的结构，但是随着其尺寸较大而变厚。

    Polarization separation/conversion device for polarized lighting apparatus and projection display unit
    24.
    发明授权
    Polarization separation/conversion device for polarized lighting apparatus and projection display unit 失效
    用于偏振照明设备和投影显示单元的偏振分离/转换装置

    公开(公告)号：US5764412A

    公开(公告)日：1998-06-09

    申请号：US543607

    申请日：1995-10-16

    申请人： Toshihiro Suzuki ,  Hisashi Yamaguchi ,  Tetsuya Hamada ,  Mari Sugawara ,  Keiji Hayashi ,  Tetsuya Kobayashi ,  Takeshi Gotoh

    发明人： Toshihiro Suzuki ,  Hisashi Yamaguchi ,  Tetsuya Hamada ,  Mari Sugawara ,  Keiji Hayashi ,  Tetsuya Kobayashi ,  Takeshi Gotoh

    IPC分类号： G02B5/30 ,  G02B27/28 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357

    CPC分类号： G02B27/285 ,  G02B27/283

    摘要： Columnar prisms 22 to 24, cross sections of which are parallelograms, are arranged symmetrically on both sides of a columnar prism 21 whose cross section is an isosceles right triangle. The prisms are bonded to their adjacent prisms at polarization separation films D1 to D3 which are dielectric multilayer films. A reflective films is applied on the outermost surface of the outside prism 24. The polarization separation films D1 and D3, which are located in odd-numbered order from the prism 21, transmit incident p-polarized light and reflect incident s-polarized light, the polarization separation film D2 located in even numbered order from the prism 21 transmits the incident s-polarized light and reflects the incident p-polarized light. In order to achieve uniform polarization at the emission surface of a polarization separation/conversion device 20, a 1/2 wave plate C2 is applied on to the emission surfaces of the prisms 22 and 23. The advantages can be achieved in a structure in which the polarization separation film D2 is replaced by a reflective film.

    摘要翻译： 柱状棱镜22至24（其横截面为平行四边形）对称地布置在横截面为等腰直角三角形的柱状棱镜21的两侧。 在作为电介质多层膜的偏振分离膜D1至D3处将棱镜结合到其相邻的棱镜。 反射膜被施加在外侧棱镜24的最外表面上。偏振分离膜D1和D3以棱镜21的奇数次数排列，透射入射的p偏振光并反射入射的s偏振光， 从棱镜21以偶数顺序设置的偏光分离膜D2透射入射的s偏振光并反射入射的p偏振光。 为了在偏振分离/转换装置20的发射表面处实现均匀的偏振，将+ E，fra 1/2 + EE波片C2施加到棱镜22和23的发射表面。优点可以是 在偏振分离膜D2被反射膜代替的结构中实现。

    Lighting unit and display device
    27.
    发明授权
    Lighting unit and display device 有权
    照明单元和显示设备

    公开(公告)号：US07163331B2

    公开(公告)日：2007-01-16

    申请号：US10641720

    申请日：2003-08-15

    申请人： Toshihiro Suzuki ,  Tetsuya Hamada ,  Mari Sugawara ,  Tetsuya Kobayashi ,  Keiji Hayashi

    发明人： Toshihiro Suzuki ,  Tetsuya Hamada ,  Mari Sugawara ,  Tetsuya Kobayashi ,  Keiji Hayashi

    IPC分类号： F21V7/04 ,  F21V8/00

    CPC分类号： G02B6/0028 ,  G02B6/00 ,  G02B6/003 ,  G02B6/0038 ,  G02B6/0056 ,  G02F1/133615

    摘要： A lighting unit and a liquid crystal display device which can improve the efficiency of usable light. The lighting unit includes a light source, a light guide plate, and a truncated pyramid located between the light guide plate and the light source. The truncated pyramid has a base, a top smaller than the base, and a slope linking the base and the top. The light source is placed in close contact with the top of the truncated pyramid, and the light guide plate is placed in close contact with the base of the truncated pyramid. Light is propagated from a light emitting part of the light source to the light guide plate without passing through any air layer. Also, an unnecessary light removing structure is provided in the light guide plate near the incidence surface thereof.

    摘要翻译： 照明单元和能够提高可用光效率的液晶显示装置。 照明单元包括光源，导光板和位于导光板和光源之间的截头棱锥。 截头棱锥具有基部，顶部小于基部，以及连接基部和顶部的斜面。 光源被放置成与截顶的金字塔的顶部紧密接触，并且导光板被放置成与截顶金字塔的基部紧密接触。 光从光源的发光部分传播到导光板，而不通过任何空气层。 而且，在导光板的入射面附近设有不必要的光去除结构。

    Illumination device and liquid crystal display device using the same
    29.
    发明授权
    Illumination device and liquid crystal display device using the same 有权
    照明装置和使用其的液晶显示装置

    公开(公告)号：US07277079B2

    公开(公告)日：2007-10-02

    申请号：US10696504

    申请日：2003-10-29

    申请人： Tetsuya Kobayashi ,  Toshihiro Suzuki ,  Mari Sugawara ,  Tetsuya Hamada ,  Keiji Hayashi ,  Fumiaki Yamada ,  Yasutake Furukoshi ,  Masanori Nishido

    发明人： Tetsuya Kobayashi ,  Toshihiro Suzuki ,  Mari Sugawara ,  Tetsuya Hamada ,  Keiji Hayashi ,  Fumiaki Yamada ,  Yasutake Furukoshi ,  Masanori Nishido

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3611 ,  G02B6/0046 ,  G02B6/0076 ,  G02B6/0078 ,  G02F1/1336 ,  G09G3/342 ,  G09G3/3648 ,  G09G3/3666 ,  G09G5/10 ,  G09G2310/024 ,  G09G2310/0245 ,  G09G2310/061 ,  G09G2320/0233 ,  G09G2320/0261 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2360/16

    摘要： An illumination device is provided which can reduce a movement blur and a tailing phenomenon on a motion picture display while a drop in display brightness is suppressed, and which can suppress power consumption, can be made small and light, and can prolong the lifetime, and a liquid crystal display device using the same is provided. A light source control part of a control circuit synchronizes a latch pulse signal outputted from a gate driver control part to a gate driver, and outputs light emission control signals to respective light source power supply circuits. The respective light source power supply circuits change emission states of cold cathode fluorescent lamps to one of a first to a third emission states on the basis of the inputted light emission control signals, and illuminate an LCD panel from a rear surface of a display area. A first stage emission state is a non-lighting state, a second stage emission state is a maximum lighting state in which maximum lighting brightness is obtained, and a third emission state is an intermediate lighting state in which brightness of about one half of the second stage emission state is obtained.

    摘要翻译： 提供了一种照明装置，其可以在显示亮度的下降被抑制的同时减少运动模糊和拖尾现象，并且能够抑制功耗，可以变得小而轻，并且可以延长使用寿命，并且 提供了使用该液晶显示装置的液晶显示装置。 控制电路的光源控制部分将从栅极驱动器控制部分输出的锁存脉冲信号同步到栅极驱动器，并将光发射控制信号输出到各个光源电源电路。 各个光源电源电路根据所输入的发光控制信号，将冷阴极荧光灯的发光状态改变为第一至第三发光状态之一，并从显示区域的后表面照亮LCD面板。 第一级发射状态是非点亮状态，第二级发射状态是获得最大照明亮度的最大点亮状态，并且第三发光状态是中间点亮状态，其中亮度约为第二级发光状态的大约二分之一 获得阶段发射状态。