公开(公告)号：US5760875A

公开(公告)日：1998-06-02

申请号：US780284

申请日：1997-01-08

申请人： Akira Daijogo ,  Hiroshi Kida ,  Shinji Okamori ,  Shinsuke Shikama

发明人： Akira Daijogo ,  Hiroshi Kida ,  Shinji Okamori ,  Shinsuke Shikama

IPC分类号： F21V21/10 ,  H04N9/31 ,  G03B21/28

CPC分类号： G03B21/16 ,  G03B21/2026 ,  G03B21/2053 ,  G03B33/12 ,  H04N9/3105 ,  H04N9/3144 ,  H04N9/315 ,  H04N9/3152

摘要： A projection display device comprises: a diaphragm for the illuminating system disposed in the vicinity of a focal point of the light collected by the concave mirror; a collimation lens for rendering parallel the light passing through the aperture of the first diaphragm; a scattering-type liquid crystal light valve for forming forming image on its displaying surface; a field lens for converging the light rendered parallel by the collimation lens; a projection lens having an entrance pupil disposed in the vicinity of a focal point of the light converged by the field lens; and a second diaphragm having an aperture and provided in the projection lens. An aperture varying section of the first diaphragm varies the aperture diameter of the diaphragm of the illuminating system, and the other aperture varying section varies the aperture diameter of the diaphragm of the projection lens, thereby varying the diameter of an entrance pupil.

公开(公告)号：US5695266A

公开(公告)日：1997-12-09

申请号：US598916

申请日：1996-02-09

申请人： Hiroshi Kida ,  Shinsuke Shikama ,  Akira Daijogo ,  Shinji Okamori

发明人： Hiroshi Kida ,  Shinsuke Shikama ,  Akira Daijogo ,  Shinji Okamori

IPC分类号： G03B33/12 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/00 ,  G09F9/00 ,  H04N5/74 ,  H04N9/31 ,  G03B21/14

CPC分类号： H04N9/3105

摘要： A projection-type display apparatus comprising a lamp, an ellipsoidal mirror, a diaphragm disposed in the vicinity of a secondary focus of the ellipsoidal mirror, a first color separating dichroic mirror for separating the light into a blue color beam and a beam having a wavelength outside the blue wavelength region, a second color separating dichroic mirror for separating the beam having the wavelength outside the blue wavelength region into a red color beam and a green color beam, light valves for displaying images respectively corresponding to the red, green and blue color beams, first lens for making the red, green and blue color beams respectively advancing toward the respective light valves into parallel or convergent beams, color synthesizing dichroic mirrors for synthesizing the red, green and blue color beams which have been transmitted through the respective light valves, and a projection lens for enlarging and projecting a synthesized beam onto a screen. The first lens is disposed downstream in a light propagation direction from the first color separating dichroic mirror.

摘要翻译： 一种投影型显示装置，包括灯，椭圆面镜，设置在椭圆面镜的二次焦点附近的隔膜，用于将光分离成蓝色光束的第一分色分色镜和具有波长的光束 在蓝色波长区域外，用于将具有蓝色波长区域外的波长的光束分离为红色光束和绿色光束的第二颜色分离分色镜，分别对应于红色，绿色和蓝色的显示图像的光阀 光束，第一透镜，用于使分别朝向各个光阀前进的平行或会聚光束的红色，绿色和蓝色光束，用于合成已经透过各个光阀的红色，绿色和蓝色光束的彩色合成二向色镜 以及用于将合成束放大并投影到屏幕上的投影透镜。 第一透镜从第一分色分色镜在光传播方向的下游设置。

公开(公告)号：US5765934A

公开(公告)日：1998-06-16

申请号：US690670

申请日：1996-07-31

申请人： Shinji Okamori ,  Akira Daijogo ,  Hiroshi Kida ,  Shinsuke Shikama ,  Eiichi Toide

发明人： Shinji Okamori ,  Akira Daijogo ,  Hiroshi Kida ,  Shinsuke Shikama ,  Eiichi Toide

IPC分类号： F21V8/00 ,  H04N5/74 ,  H04N9/31 ,  G03B21/28

CPC分类号： H04N9/3105 ,  G02B6/0006 ,  G03B21/2013 ,  H04N9/3147 ,  H04N9/315 ,  H04N9/3164

摘要： In a light source apparatus for use with a projection type display, at least one light source is provided for emitting light. A reflector is provided correspondingly to the light source in order to gather the light emitted from the light source into a small area to form a converged luminous flux. A light guide has at least one light input section into which the luminous flux is coupled. The light input section is provided correspondingly to the light source. The light guide combines the luminous flux received through the light input sections into a single beam of luminous flux. The light-guide has at least one light output section from which said luminous flux is output. The light source apparatus may also include light-refracting element provided between the reflector and the light-guide. The light-refracting element receives the converged luminous flux from the reflector to refract the converged luminous flux so as to couple the converged luminous flux, as a uniform luminous flux, into the light-guide.

摘要翻译： 在与投影型显示器一起使用的光源装置中，提供至少一个用于发光的光源。 对应于光源设置反射器，以将从光源发射的光聚集成小面积以形成会聚光束。 光导具有至少一个光输入部分，光通量耦合到光输入部分中。 光输入部分对应于光源设置。 光导将通过光输入部分接收的光通量组合成单光束。 光导具有至少一个输出所述光通量的光输出部分。 光源装置还可以包括设置在反射器和光导之间的光折射元件。 光折射元件从反射器接收会聚光束，以折射会聚光束，以将作为均匀光通量的会聚光束耦合到光导中。

公开(公告)号：US5738426A

公开(公告)日：1998-04-14

申请号：US759634

申请日：1996-12-05

申请人： Akira Daijogo ,  Shinji Okamori ,  Hiroshi Kida ,  Shinsuke Shikama

发明人： Akira Daijogo ,  Shinji Okamori ,  Hiroshi Kida ,  Shinsuke Shikama

IPC分类号： G03B33/12 ,  G02F1/13 ,  G02F1/1335 ,  H04N9/31 ,  G03B21/14

CPC分类号： H04N9/3105 ,  H04N9/3182 ,  H04N9/3194

摘要： A projection type display apparatus includes a light source, color separator, half-wave plate, a plurality of light valves, color synthesizer, and projection lens. The light source emits a substantially parallel illumination flux. The color separator separates the light emitted from the light source into light of three colors including red, green, and blue. The light of the respective color passes through the corresponding half-wave plate which is placed in the light path of the light and causes the plane of vibration of the light to rotate through a predetermined angle. Then, the light of each color exiting the half-wave plate passe through the corresponding light valve, being modulated into a color image. The color synthesizer synthesizes the color images into a single full-color image and the projection lens enlarges and projects the single full-color image formed.

摘要翻译： 投影型显示装置包括光源，分色器，半波片，多个光阀，彩色合成器和投影透镜。 光源发射基本平行的照明光束。 颜色分离器将从光源发出的光分成包括红色，绿色和蓝色三种颜色的光。 各颜色的光通过放置在光的光路中的相应的半波片，并使光的振动平面旋转预定的角度。 然后，通过相应的光阀离开半波片平板的每种颜色的光被调制成彩色图像。 彩色合成器将彩色图像合成为单个全色图像，并且投影透镜放大并投射形成的单个全色图像。

公开(公告)号：US6033091A

公开(公告)日：2000-03-07

申请号：US969418

申请日：1997-10-21

申请人： Akira Daijogo ,  Hiroshi Kida ,  Shinji Okamori ,  Shinsuke Shikama

发明人： Akira Daijogo ,  Hiroshi Kida ,  Shinji Okamori ,  Shinsuke Shikama

IPC分类号： F21V21/10 ,  H04N9/31

CPC分类号： G03B21/16 ,  G03B21/2026 ,  G03B21/2053 ,  G03B33/12 ,  H04N9/3105 ,  H04N9/3144 ,  H04N9/315 ,  H04N9/3152

摘要： A projection display device comprises: a diaphragm for the illuminating system disposed in the vicinity of a focal point of the light collected by the concave mirror; a collimation lens for rendering parallel the light passing through the aperture of the first diaphragm; a scattering-type liquid crystal light valve for forming forming image on its displaying surface; a field lens for converging the light rendered parallel by the collimation lens; a projection lens having an entrance pupil disposed in the vicinity of a focal point of the light converged by the field lens; and a second diaphragm having an aperture and provided in the projection lens. An aperture varying section of the first diaphragm varies the aperture diameter of the diaphragm of the illuminating system, and the other aperture varying section varies the aperture diameter of the diaphragm of the projection lens, thereby varying the diameter of an entrance pupil.

摘要翻译： 一种投影显示装置，包括：用于照明系统的隔膜，设置在由凹面镜收集的光的焦点附近; 用于使平行于穿过第一隔膜的孔的光平行的准直透镜; 用于在其显示表面上形成成像图像的散射型液晶光阀; 用于会聚由准直透镜平行渲染的光的场透镜; 投影透镜，其具有设置在由所述场透镜会聚的光的焦点附近的入射光瞳; 以及具有孔径并设置在投影透镜中的第二光阑。 第一光阑的光圈变化部分改变照明系统的光阑的孔径，另一个光圈变化部分改变投影透镜的光阑的孔径直径，从而改变入射光瞳的直径。

公开(公告)号：US5808759A

公开(公告)日：1998-09-15

申请号：US758016

申请日：1996-11-27

申请人： Shinji Okamori ,  Akira Daijogo ,  Hiroshi Kida ,  Shinsuke Shikama ,  Hirokazu Taguchi

发明人： Shinji Okamori ,  Akira Daijogo ,  Hiroshi Kida ,  Shinsuke Shikama ,  Hirokazu Taguchi

IPC分类号： G02B26/08 ,  F21S2/00 ,  F21V13/00 ,  F21V13/14 ,  G02B5/02 ,  G02B5/32 ,  G02B19/00 ,  G02B27/00 ,  G02B27/18 ,  G02F1/13 ,  G02F1/13357 ,  G03B21/14 ,  H04N9/31 ,  F21V13/04 ,  G02F1/1335

CPC分类号： G02B5/0252 ,  G02B5/0278 ,  G02B5/32 ,  H04N9/315

摘要： A light source device including a light emitting element emits a luminous flux, which is converged by a reflecting mirror. A conical light-refracting element receives the luminous flux converged by the reflecting mirror and changes the cone angle of the luminous flux. The luminous flux exiting the conical light-refracting element is diffused by a holographic diffuser and is then converged by at least one lens. The reflecting mirror may have an elliptic curvature or a parabolic curvature. The light source device is also used to form a projector for a projection type display apparatus. In the projector, the luminous flux emitted from the light source device may be separated by color separators into a plurality of colors of light. Then, each color of light is directed to the corresponding one of a plurality of light valves. Then, a color synthesizer synthesizes the colors of light emitted from the light valves into a composite image which in turn is projected onto a screen. A plurality of such projectors are used to construct a multiscreen projection type display system where each of the projectors projects a corresponding image. At least one reflecting mirror for bending a corresponding one of the images is included in the multiscreen projection type display system. The reflecting mirror projects the image onto a screen so that the images emitted from the plurality of projectors are combined into a composite image on the screen.

摘要翻译： 包括发光元件的光源装置发射由反射镜会聚的光束。 锥形光折射元件接收由反射镜收敛的光束并改变光通量的锥角。 离开锥形光折射元件的光通量由全息漫射器扩散，然后被至少一个透镜会聚。 反射镜可以具有椭圆曲率或抛物线曲率。 光源装置还用于形成用于投影型显示装置的投影仪。 在投影仪中，从光源装置发出的光束可以通过分色器分离为多种颜色的光。 然后，每种颜色的光被引导到多个光阀中的对应的一个。 然后，颜色合成器将从光阀发射的光的颜色合成为复合图像，该复合图像又被投影到屏幕上。 使用多个这样的投影仪来构建多屏幕投影型显示系统，其中每个投影仪投射相应的图像。 用于弯曲对应的一个图像的至少一个反射镜被包括在多屏幕投影型显示系统中。 反射镜将图像投射到屏幕上，使得从多个投影仪发射的图像被组合成屏幕上的合成图像。

公开(公告)号：US5622418A

公开(公告)日：1997-04-22

申请号：US409822

申请日：1995-03-24

申请人： Akira Daijogo ,  Hiroshi Kida ,  Shinsuke Shikama

发明人： Akira Daijogo ,  Hiroshi Kida ,  Shinsuke Shikama

IPC分类号： F21V21/10 ,  H04N9/31 ,  G03B21/14

CPC分类号： G03B21/16 ,  G03B21/2026 ,  G03B21/2053 ,  G03B33/12 ,  H04N9/3105 ,  H04N9/3144 ,  H04N9/315 ,  H04N9/3152

摘要： A projection display device comprises: a diaphragm for the illuminating system disposed in the vicinity of a focal point of the light collected by the concave mirror; a collimation lens for rendering parallel the light passing through the aperture of the first diaphragm; a scattering-type liquid crystal light valve for forming forming image on its displaying surface; a field lens for converging the light rendered parallel by the collimation lens; a projection lens having an entrance pupil disposed in the vicinity of a focal point of the light converged by the field lens; and a second diaphragm having an aperture and provided in the projection lens. An aperture varying section of the first diaphragm varies the aperture diameter of the diaphragm of the illuminating system, and the other aperture varying section varies the aperture diameter of the diaphragm of the projection lens, thereby varying the diameter of an entrance pupil.

摘要翻译： 一种投影显示装置，包括：用于照明系统的隔膜，设置在由凹面镜收集的光的焦点附近; 用于使平行于穿过第一隔膜的孔的光平行的准直透镜; 用于在其显示表面上形成成像图像的散射型液晶光阀; 用于会聚由准直透镜平行渲染的光的场透镜; 投影透镜，其具有设置在由所述场透镜会聚的光的焦点附近的入射光瞳; 以及具有孔径并设置在投影透镜中的第二光阑。 第一光阑的光圈变化部分改变照明系统的光阑的孔径，另一个光圈变化部分改变投影透镜的光阑的孔径直径，从而改变入射光瞳的直径。

公开(公告)号：US5572362A

公开(公告)日：1996-11-05

申请号：US427815

申请日：1995-04-26

申请人： Shinsuke Shikama ,  Hiroshi Kida ,  Akira Daijogo

发明人： Shinsuke Shikama ,  Hiroshi Kida ,  Akira Daijogo

IPC分类号： G02B3/04 ,  G02B5/30 ,  G02B13/18 ,  G02B19/00 ,  H04N9/31

CPC分类号： H04N9/3105 ,  G02B13/18 ,  G02B19/0014 ,  G02B19/0047 ,  G02B3/04 ,  G02B5/3066 ,  H04N9/315 ,  H04N9/3167

摘要： A light source apparatus of reduced thickness and high extinction ratio employs a series of columnar component elements of rhomboidal cross section. Incident and emergent surfaces are formed in periodic folds with each fold arranged for light incidence at and angle equal to or greater than the Brewster angle. At the Brewster angle, P-polarized light is transmitted without loss. For incidence at an angle greater than the Brewster angle, the transmittance of the S-polarized light is decreased with a slight decrease in transmittance of the P-polarized light, for a net increase in the extinction ratio. By using a multilayer structure, the extinction ratio is further increased. By inclusion of an ultraviolet/infrared cut-off filter and forced cooling, deterioration and deformation of the polarizing element are reduced. Arrangement of the layers with spacers and air layers prevents a decrease in extinction ratio due to multiple reflections.

摘要翻译： 厚度减小，消光比高的光源装置采用菱形截面的一系列柱状构件。 事件和紧急表面以周期性折叠形成，每个折叠布置用于光入射，角度等于或大于布鲁斯特角。 在布鲁斯特角度，P偏振光无损耗地传输。 对于大于布鲁斯特角度的角度的入射，S偏振光的透射率随着P偏振光的透射率的轻微降低而降低，因为消光比的净增加。 通过使用多层结构，消光比进一步提高。 通过包含紫外/红外截止滤光器和强制冷却，偏振元件的劣化和变形减小。 具有间隔物和空气层的层的布置防止由于多次反射而引起的消光比降低。

公开(公告)号：US5384659A

公开(公告)日：1995-01-24

申请号：US47504

申请日：1993-04-16

申请人： Shinsuke Shikama ,  Hiroshi Kida ,  Akira Daijogo

发明人： Shinsuke Shikama ,  Hiroshi Kida ,  Akira Daijogo

IPC分类号： G02B3/04 ,  G02B5/30 ,  G02B13/18 ,  G02B19/00 ,  H04N9/31

CPC分类号： H04N9/3105 ,  G02B13/18 ,  G02B19/0028 ,  G02B19/0047 ,  G02B3/04 ,  G02B5/3066 ,  H04N9/315 ,  H04N9/3167

摘要： Disclosed is a condenser lens with large aperture, having a numerical aperture of 0.9 or larger, which consists of a bi-aspherical single lens having a first surface of convex form facing the larger conjugate side and a second surface facing the smaller conjugate side and whose outermost circular zone is formed concave, the condenser lens satisfying the following conditions (1) or (2). Also disclosed are a light source apparatus using such a condenser lens and a projection display apparatus using such a light source apparatus.(1) 0.42

摘要翻译： 公开了具有大孔径的聚光透镜，其具有0.9或更大的数值孔径，其由具有朝向较大共轭侧的凸形形状的第一表面和面向较小共轭侧的第二表面的双非球面单透镜组成， 最外面的圆形区域形成为凹形，聚光透镜满足以下条件（1）或（2）。 还公开了使用这种聚光透镜的光源装置和使用这种光源装置的投影显示装置。 （1）0.42

公开(公告)号：US5662400A

公开(公告)日：1997-09-02

申请号：US536355

申请日：1995-09-29

申请人： Shinsuke Shikama ,  Hiroshi Kida ,  Akira Daijogo

发明人： Shinsuke Shikama ,  Hiroshi Kida ,  Akira Daijogo

IPC分类号： G02B3/04 ,  G02B5/30 ,  G02B13/18 ,  G02B19/00 ,  H04N9/31 ,  G03B21/14

CPC分类号： H04N9/3105 ,  G02B13/18 ,  G02B19/0028 ,  G02B19/0047 ,  G02B3/04 ,  G02B5/3066 ,  H04N9/315 ,  H04N9/3167

摘要： Disclosed is a condenser lens with large aperture, having a numerical aperture of 0.9 or larger, which consists of a bi-aspherical single lens having a first surface of convex form facing the larger conjugate side and a second surface facing the smaller conjugate side and whose outermost circular zone is formed concave, the condenser lens satisfying the following conditions (1) or (2). Also disclosed are a light source apparatus using such a condenser lens and a projection display apparatus using such a light source apparatus.(1) 0.42

摘要翻译： 公开了具有大孔径的聚光透镜，其具有0.9或更大的数值孔径，其由具有朝向较大共轭侧的凸形形状的第一表面和面向较小共轭侧的第二表面的双非球面单透镜组成， 最外面的圆形区域形成为凹形，聚光透镜满足以下条件（1）或（2）。 还公开了使用这种聚光透镜的光源装置和使用这种光源装置的投影显示装置。 （1）0.42