公开(公告)号：US5381188A

公开(公告)日：1995-01-10

申请号：US878046

申请日：1992-05-04

申请人： Toshio Konno ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Keiichi Maeno

发明人： Toshio Konno ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Keiichi Maeno

IPC分类号： G02F1/135 ,  G09F9/33 ,  G09G3/00 ,  H04N5/74

CPC分类号： G09G3/002 ,  G09G3/02

摘要： The present invention offers a display system for displaying information comprising a linear array of N light-emitting devices emitting light of predetermined wavelength, the devices are arranged respectively with N pixels, a stream of the information is divided into pieces each of which containing the N pixels, and the N light-emitting devices are caused to emit N light beams simultaneously in a form of array during a given period for every divided piece of the information, the every divided piece of information may correspond to one line of a frame of picture, the N light beams are intensity-modulated respectively with the divided piece of the information, the N light beams are deflected simultaneously in a direction perpendicular to a direction of the array of the N light beams, and a spatial light modulator having a photoconductive layer and a light modulation layer interposed between a pair of electrodes, the photoconductive layer is responsive to the deflected N light beams incident thereto through a focusing lens as a writing light, and a reading light of visible wavelength which is shorter than the predetermined wavelength of the emitted light from the linear array of the N light-emitting devices, the reading light irradiates the photomodulation layer of the spatial light modulator to read out and display the written information thereon.

摘要翻译： 本发明提供了一种显示系统，用于显示包括发射预定波长的光的N个发光装置的线性阵列的信息，该装置分别具有N个像素，信息流被分成各自包含N个 像素，并且使N个发光器件在每个分割的信息的给定周期内以阵列的形式同时发射N个光束，每个分割的信息可以对应于一帧图像的一行 分别用分割的信息对N个光束进行强度调制，N个光束在与N个光束的阵列的方向垂直的方向上同时偏转，并且具有光导层的空间光调制器 以及插入在一对电极之间的光调制层，光电导层响应于偏转的N个光束 通过作为书写光的聚焦透镜和与N个发光器件的线阵列相比发射光的预定波长短的可见波长的读取光，读取光照射光电调制层 空间光调制器读出并显示其上的书面信息。

公开(公告)号：US5327229A

公开(公告)日：1994-07-05

申请号：US16732

申请日：1993-02-11

申请人： Toshio Konno ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Hiroyuki Bonde ,  Tsutomu Matsumura

发明人： Toshio Konno ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Hiroyuki Bonde ,  Tsutomu Matsumura

IPC分类号： G02F1/133 ,  G02F1/135 ,  G03B21/00 ,  G09F9/00 ,  H04N9/31 ,  H04N9/30

CPC分类号： H04N9/312 ,  H04N9/3111

摘要： A clear color image having a high contrast ratio without particular coloration is displayed on a screen by improved display apparatus. Such display apparatus is comprised of a spatial light modulator including a photo-conductive layer, a photo-modulator layer and a dielectric mirror, a device for writing color images of different colors onto the spatial light modulator time-divisionally in a sequence of the different colors, a reading device for producing reading lights having different colors in synchronism with time-divisional writing of the color images, and for projecting the reading lights to the spatial light modulator, a driving device for supplying the spatial light modulator with different voltages and frequencies correspondingly with the reading light of different colors and in synchronism with time-divisional projections of the reading lights, and a device for projecting the color images read out from the spatial light modulator on the display device.The dielectric mirror may have a light absorbance characteristic controlled to be wavelength-selective to absorb a color of light to which the photo-conductive layer is most sensitive, so that lights having different colors leaked into the photo-conductive layer through the dielectric mirror are controlled to cause a uniform impedance of the photo-conductive layer.

摘要翻译： 通过改进的显示装置在屏幕上显示具有没有特定着色的高对比度的清晰彩色图像。 这种显示装置由包括光电导层，光调制层和电介质镜的空间光调制器组成，用于将不同颜色的彩色图像分时地以不同的顺序分列在空间光调制器上的装置 颜色，用于产生与彩色图像的分时写入同步的具有不同颜色的读取光并且用于将读取光投影到空间光调制器的读取装置，用于向不同的电压和频率提供空间光调制器的驱动装置 对应于不同颜色的读取光并且与读取灯的时分投影同步，以及用于将从空间光调制器读出的彩色图像投影到显示装置上的装置。 电介质镜可以具有被控制为波长选择性以吸收光敏层最敏感的光的颜色的光吸收特性，使得具有不同颜色的光通过电介质镜泄漏到光导层中 被控制以导致光导层的均匀阻抗。

公开(公告)号：US6141124A

公开(公告)日：2000-10-31

申请号：US956957

申请日：1997-10-23

申请人： Tetsuji Suzuki ,  Ryusaku Takahashi ,  Shintaro Nakagaki ,  John E. Gunther ,  Ronald T. Smith

发明人： Tetsuji Suzuki ,  Ryusaku Takahashi ,  Shintaro Nakagaki ,  John E. Gunther ,  Ronald T. Smith

IPC分类号： G02B5/20 ,  G02B5/32 ,  G02F1/1335

CPC分类号： G02B5/203 ,  G02B5/201

摘要： A color filter which, in a reflection type color picture projector using a polarized light component as a projection light, improve the utilization factor of light and a color picture display device using the same color filter are provided. The color filter 3 using a transmission type hologram diffracts and spectroscopically separates P polarized light components related to respective primary colors and condenses them to pixel electrodes 13r, 13g, and 13b on the side of an LCD panel 1. A reflection light which is modulated by an optical modulator 16 on the side of the LCD panel 1 and becomes S polarized light component is incident on the color filter 3. The color filter 3 transmits the S polarized light component and uses it as the projection light. Since the color filter 3 can diffract a P polarized light component at diffraction efficiency of about 100% while restricting the diffraction efficiency of S polarized light component to about 3%, which is substantially advantageous compared with diffraction of S polarized light component, the utilization factor of light can be improved

摘要翻译： 提供了使用偏振光分量作为投影光的反射型彩色图像投影仪提高光的利用率的彩色滤光器和使用相同滤色器的彩色图像显示装置。 使用透射型全息图的滤色器3衍射并分光分离与各原色相关的P偏振光分量，并将其冷凝到LCD面板1侧的像素电极13r，13g和13b。由... 在LCD面板1一侧并变成S偏振光分量的光调制器16入射到滤色器3上。滤色器3透射S偏振光分量并将其用作投影光。 由于滤色器3可以以约100％的衍射效率衍射P偏振光分量，同时将S偏振光分量的衍射效率限制为约3％，这与S偏振光分量的衍射相比是有利的，因此利用因子 的光线可以改善

公开(公告)号：US5264951A

公开(公告)日：1993-11-23

申请号：US980121

申请日：1992-11-23

申请人： Itsuo Takanashi ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Ryusaku Takahashi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Keiichi Maeno

发明人： Itsuo Takanashi ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Ryusaku Takahashi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Keiichi Maeno

IPC分类号： G02F1/1347 ,  G02F1/135 ,  H04N9/31 ,  G02F1/03 ,  G03B21/14

CPC分类号： H04N9/3102 ,  G02F1/13473 ,  G02F1/135

摘要： There is provided an optical system for a spatial light modulator. The system comprises a light source for emitting an unpolarized light, a separator for separating a first linearly polarized light having a specified plane of polarization from the unpolarized light and polarizer for rotating the plane of polarization of the first linearly polarized light at a specified angle different from the specified angle to obtain a second linearly polarized light, wherein the second linearly polarized light is adopted as a reading light. Also provided is a method of photomodulation, comprising the steps of separating a light in the region of a specified wavelength from an unpolarized light, separating a first linearly polarized light having a specified plane of polarization from the light and obtaining a second linearly polarized light by rotating the plane of polarization of the first linearly polarized light at a specified angle.

摘要翻译： 提供了一种用于空间光调制器的光学系统。 该系统包括用于发射非偏振光的光源，用于从非偏振光和偏振器分离具有指定偏振光的第一线偏振光的分离器，用于将第一线性偏振光的偏振平面旋转到指定角度 从指定角度获得第二线偏振光，其中采用第二线偏振光作为读取光。 还提供了一种光调制方法，包括以下步骤：将特定波长区域中的光与非偏振光分离，将具有指定偏振面的第一直线偏振光与光分离，并通过以下步骤获得第二线偏振光： 使第一直线偏振光的偏振面以特定的角度旋转。

公开(公告)号：US5130826A

公开(公告)日：1992-07-14

申请号：US679602

申请日：1991-04-03

申请人： Itsuo Takanashi ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Keiichi Maeno

发明人： Itsuo Takanashi ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Keiichi Maeno

IPC分类号： G02F1/03 ,  G02B27/14 ,  G02F1/13 ,  H04N9/31

CPC分类号： G02B27/149 ,  G02B27/1026 ,  G02B27/145 ,  H04N9/312

摘要： There is disclosed an optical system for a color picture display having three spatial light modulators of reflecting type corresponding to an optical image of one of three primary colors by photoelectric effect and photomodulation effect, a writing device for guiding writing lights each carrying the optical image of one of the colors to each device, a reading device for guiding reading lights each in the region of wavelength of one of the colors to each device and a composing device for composing a composed reading light of the reading lights which are emitted from the optical devices respectively after optically modulated. The optical system comprises an optical apparatus shared by the reading device and the composing device, having first, second and third prisms, a first dichroic filter provided between the first and the second prisms and a second dichroic filter provided between the second and the third prisms.

公开(公告)号：US5357289A

公开(公告)日：1994-10-18

申请号：US180705

申请日：1994-01-13

申请人： Toshio Konno ,  Shintaro Nakagaki ,  Ighiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Keiichi Maeno

发明人： Toshio Konno ,  Shintaro Nakagaki ,  Ighiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Keiichi Maeno

IPC分类号： G02B27/10 ,  G02B13/00 ,  G03B21/00 ,  G03B33/12 ,  H04N5/44 ,  H04N5/74 ,  H04N9/31

CPC分类号： H04N9/3105 ,  H04N5/7441 ,  H04N7/0122

摘要： This specification discloses an image projector for projecting a tri-color composite optical image on a screen as a magnified optical image. A reading light beam emitted from a light source is separated into three color beams, e.g., Red, Green and Blue color beams through a tri-color separation and composition optical system. The separated color beams are irradiated on image forming devices provided correspondingly with Red, Green and Blue color images to read out color images respectively therefrom. Each of the reflected light beams from the image forming device carrying color image information impinges again on the tri-color separation and composition optical system to compose a composite image beam. The composite image beam is projected on the screen through an optical lens system comprising a first lens group, a second lens group and a third lens group disposed along an optical axis in order. The first lens group forms a composite color image on the second lens group by focusing the composite image beam from the tri-color separation and composition optical system. The second lens group converges the composite image beam therefrom to the third lens group. The third lens group projects the composite image beam on the screen as a magnified image. A focal length of the lens system is arranged shorter than a back-focal length defined as a distance between the front surface of the first lens group and a object focal point thereof.

摘要翻译： 本说明书公开了一种用于在屏幕上投影三色复合光学图像作为放大的光学图像的图像投影仪。 从光源发射的读取光束通过三色分离和组合光学系统分离成三色光束，例如红色，绿色和蓝色光束。 分离的彩色光束照射在相应于红色，绿色和蓝色彩色图像的图像形成装置上，以分别从中读出彩色图像。 来自携带彩色图像信息的图像形成装置的每个反射光束再次入射到三色分离和组合光学系统上以构成合成图像束。 复合图像束通过包括依次设置在光轴上的第一透镜组，第二透镜组和第三透镜组的光学透镜系统投影在屏幕上。 第一透镜组通过聚焦来自三色分离和组合光学系统的合成图像束在第二透镜组上形成复合彩色图像。 第二透镜组将合成图像束从其收敛到第三透镜组。 第三透镜组将合成图像束投影在屏幕上作为放大图像。 布置透镜系统的焦距比被定义为第一透镜组的前表面和其物体焦点之间的距离的后焦距短。

公开(公告)号：US5250939A

公开(公告)日：1993-10-05

申请号：US787867

申请日：1991-11-05

申请人： Itsuo Takanashi ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Keiichi Maeno ,  Tsuyoshi Yoshimura

发明人： Itsuo Takanashi ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Keiichi Maeno ,  Tsuyoshi Yoshimura

IPC分类号： G06K15/12 ,  G09G3/00

CPC分类号： G06K15/1247

摘要： A drive apparatus for an optical element array includes a counter counting clock pulses and being periodically reset at a horizontal scanning period. The counter outputs first and second counter signals out of phase with each other. A latch holds a pixel-corresponding segment of an input image signal. One of clock signals out of phase with each other is selected in response to the pixel-corresponding input-signal segment held by the latch. A first comparator compares the first counter signal and the pixel-corresponding input-signal segment held by the latch, and outputs a first identity signal when the first counter signal and the pixel-corresponding input-signal segment are equal to each other. A second comparator compares the second counter signal and the pixel-corresponding input-signal segment held by the latch, and outputs a second identity signal when the second counter signal and the pixel-corresponding input-signal segment are equal to each other. A drive pulse is generated which starts in synchronism with a start of a horizontal scanning period and which ends in response to the selected clock signal and in response to the first and second identity signals. An optical element in the array is driven in response to the drive pulse.

公开(公告)号：US5502490A

公开(公告)日：1996-03-26

申请号：US459240

申请日：1995-06-02

申请人： Itsuo Takanashi ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Keiichi Maeno

发明人： Itsuo Takanashi ,  Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Keiichi Maeno

IPC分类号： G02F1/1335 ,  G02F1/135 ,  G09G3/00 ,  G09G3/02 ,  H04N1/23 ,  H04N3/02 ,  H04N9/31 ,  H04N8/07

CPC分类号： G09G3/02 ,  G09G3/002 ,  H04N9/3105 ,  H04N9/3129 ,  H04N9/3164 ,  H04N9/3194 ,  G02F1/135

摘要： A display unit includes a light-emitting element array having a plurality of linearly arranged light-emitting elements drivable by a time sequential image information signal to emit beams of light in accordance with pieces of information allotted to the corresponding picture elements, a deflector such as a polygon mirror for deflecting the light beams simultaneously in a direction perpendicular to the longitudinal direction of the light-emitting element array, and a light-to-light conversion element including a photoconductive layer and a photo-modulation layer, the light beams being imaged on the photoconductive layer.

公开(公告)号：US5379135A

公开(公告)日：1995-01-03

申请号：US035757

申请日：1993-03-24

申请人： Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Hiroyuki Bonde ,  Tsutomu Matsumura

发明人： Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Hiroyuki Bonde ,  Tsutomu Matsumura

IPC分类号： G02B27/10 ,  G02B27/28 ,  G02F1/03 ,  G02F1/13 ,  G02F1/135 ,  H04N9/31 ,  H04N9/30

CPC分类号： H04N9/3105 ,  H04N9/3167

摘要： An optical system is disclosed which is for a display apparatus having a light source for emitting read light and a reflection type spatial light modulator for modulating the read light incoming thereto into in accordance with image written thereon. The modulated light is projected onto a screen by a projection lens to display the image. A field lens is provided between the modulator and screen at such a position that both the read and modulated light pass therethrough. The field lens focuses the modulated light on near an entrance pupil of the projection lens so that the intensity of the modulated light is increased.

摘要翻译： 公开了一种用于具有用于发射读取光的光源的显示装置和用于根据其上写入的图像调制其入射的读取光的反射型空间光调制器的光学系统。 调制光通过投影透镜投影到屏幕上以显示图像。 在调制器和屏幕之间的这样的位置处设置场透镜，即读取和调制光都通过其中。 场透镜将调制光聚焦在投影透镜的入射光瞳附近，使得调制光的强度增加。

公开(公告)号：US5285268A

公开(公告)日：1994-02-08

申请号：US988208

申请日：1992-12-09

申请人： Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Hiroyuki Bonde ,  Tsutomu Matsumura

发明人： Shintaro Nakagaki ,  Ichiro Negishi ,  Tetsuji Suzuki ,  Fujiko Tatsumi ,  Ryusaku Takahashi ,  Hiroyuki Bonde ,  Tsutomu Matsumura

IPC分类号： H04N5/44 ,  H04N5/74 ,  H04N9/31 ,  H04N5/72

CPC分类号： H04N9/3105 ,  H04N5/7441 ,  H04N7/0122

摘要： A display device of projection type capable of projecting an image with well defined image frame is disclosed. The device comprises 3 spatial light modulators on which color image information is written in 3 primary colors respectively and is read out as a combined optical color image in a form of light beam, the light beam is then projected out of the display device through lens groups for forming a projected image on a screen, the device further comprises a mask disposed in a proximity of an imaginary image formation plane arranged to locate in a vicinity of one of the lens groups, the light beam is caused to form an optical image on the imaginary image formation plane. The mask has a variable light shielding configuration controlled either electronically or electro-mechanically for cutting off unnecessary light portions of the light beam carrying the optical image so that an image of high contrast and well defined clear fringe is projected on the screen.

摘要翻译： 公开了能够以良好定义的图像帧投影图像的投影型显示装置。 该装置包括3个空间光调制器，彩色图像信息分别以3个原色写入其中，并以光束的形式作为组合的光学彩色图像被读出，然后通过透镜组将光束从显示装置中突出出来 为了在屏幕上形成投影图像，该装置还包括设置在虚拟图像形成平面附近的掩模，布置成位于一个透镜组附近，使光束在 虚像形成平面。 掩模具有可变的遮光结构，其可以电子地或电机械地控制，以切断携带光学图像的光束的不必要的光部分，使得高对比度和良好限定的清晰边缘的图像投影在屏幕上。