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1. 发明授权

US4875064A Projector apparatus with mirror means 失效
标题翻译：具有镜面装置的投影仪
公开(公告)号：US4875064A
公开(公告)日：1989-10-17
申请号：US79883
申请日：1987-07-30
申请人： Osamu Umeda , Tohru Nakakusu , Makoto Sato , Tatsuo Shimazaki
发明人： Osamu Umeda , Tohru Nakakusu , Makoto Sato , Tatsuo Shimazaki
IPC分类号： G02B3/00 , G02B5/02 , G03B21/10 , G03B21/62 , H04N5/74
CPC分类号： G02B3/08 , G02B3/005 , G02B5/0215 , G02B5/0221 , G02B5/0278 , G03B21/10 , G03B21/625 , H04N5/7441 , H04N9/3141 , G02B3/0031
摘要： A projection lens, for enlarging and projecting an image displayed on a liquid crystal display panel onto a transmission type screen provided at a display window of a projector case, is arranged so that its optical axis is perpendicular to the optical axis of projection toward the transmission type screen. At least one mirror, for reflecting an image projected through the projection lens toward the transmission type screen, is arranged between the projection lens and the transmission type screen. The liquid crystal display panel is arranged such that its optical axis is perpendicular to the optical axis of the projection lens. At least one mirror, for reflecting an image displayed on the liquid crystal display panel toward the projection lens, is arranged between the liquid crystal display panel and the projection lens.
摘要翻译：用于将显示在液晶显示面板上的图像放大和投影到投影仪外壳的显示窗口上的透射型屏幕上的投影透镜被布置成使得其光轴垂直于朝向透射体的投影光轴类型屏幕。在投影透镜和透射型屏幕之间布置有用于将通过投影透镜投射的图像朝向透射型屏幕反射的至少一个反射镜。液晶显示面板被布置为使得其光轴垂直于投影透镜的光轴。在液晶显示面板和投影透镜之间配置有用于将显示在液晶显示面板上的图像朝向投影透镜反射的至少一个反射镜。

2. 发明授权

US4941732A Transmission type projection screen 失效
标题翻译：传输式投影屏
公开(公告)号：US4941732A
公开(公告)日：1990-07-17
申请号：US359399
申请日：1989-05-31
申请人： Osamu Umeda , Tohru Nakakusu , Makoto Sato , Tatsuo Shimazaki
发明人： Osamu Umeda , Tohru Nakakusu , Makoto Sato , Tatsuo Shimazaki
IPC分类号： G02B3/00 , G02B5/02 , G03B21/10 , G03B21/62 , H04N5/74
CPC分类号： G02B3/08 , G02B3/005 , G02B5/0215 , G02B5/0221 , G02B5/0278 , G03B21/10 , G03B21/625 , H04N5/7441 , H04N9/3141 , G02B3/0031
摘要： A back-surface projection screen for observing a light image, projected from the rear surface of a screen, on a major surface of the screen comprises a lenticular lens constructed of a greater number of lens units in a continuous array with a top surface section defined as a lens section and with a pair of total-reflection surfaces formed as side convex lenses relative to a central convex lens section formed at the lens section. A pair of linear surfaces are formed one at each of the total-reflection surfaces in an opposed relation with the central lens section located therebetween. The total-reflection surfaces are so curved as to allow light which is incident on the screen from behind to be condensed by reflection toward the linear surfaces. The lens section of each lens unit in the lenticular lens is recessed at the central section to define that center convex lens surface there with the pair of side total-reflection surfaces formed as a pair of convex lens. A pair of stepped sections are formed one at a boundary between the central lens section and the side lens section to define the pair of linear surfaces. The total-reflection surfaces are so curved as to allow light which is incident on the screen from behind to be condensed by reflection toward the linear surfaces.

3. 发明授权

US5042921A Liquid crystal display apparatus 失效
标题翻译：液晶显示装置
公开(公告)号：US5042921A
公开(公告)日：1991-08-27
申请号：US426871
申请日：1989-10-23
申请人： Makoto Sato , Masahiro Ogawa , Tohru Nakakusu , Osamu Umeda
发明人： Makoto Sato , Masahiro Ogawa , Tohru Nakakusu , Osamu Umeda
IPC分类号： H04N9/31
CPC分类号： H04N9/3167
摘要： In order to effectively use light from a light source, the light from the light source is split into P-polarized light and S-polarized light by a splitter or the like. The split P-polarized light is directly incident on a liquid crystal display apparatus for displaying an image by using P-polarized light. The split S-polarized light is optically rotated by a wavelength plate or the like and converted into P-polarized light. This P-polarized light is also incident on the liquid crystal display apparatus. The liquid crystal display apparatus effectively utilizes the light from the light source and displays an image with high luminance.
摘要翻译：为了有效地使用来自光源的光，来自光源的光通过分光器等被分割成P偏振光和S偏振光。分裂的P偏振光直接入射在用于通过使用P偏振光显示图像的液晶显示装置上。分割的S偏振光通过波片等旋光，并转换成P偏振光。该P偏振光也入射在液晶显示装置上。液晶显示装置有效地利用来自光源的光并显示高亮度的图像。

4. 发明授权

US4770525A Liquid crystal projector 失效
标题翻译：液晶投影仪
公开(公告)号：US4770525A
公开(公告)日：1988-09-13
申请号：US25019
申请日：1987-03-12
申请人： Osamu Umeda , Masahiro Ogawa , Tatsuo Shimazaki
发明人： Osamu Umeda , Masahiro Ogawa , Tatsuo Shimazaki
IPC分类号： G02F1/1335 , G03B21/00
CPC分类号： G02F1/133526 , G03B21/006
摘要： In a liquid crystal projector wherein a light source is arranged behind a transmission liquid crystal display panel having a rectangular display portion, an image displayed on the liquid crystal display panel is enlarged by a projection lens, and an enlarged image is projected on the screen located in front of the liquid crystal display panel, a linear Fresnel lens is arranged between the light source and the liquid crystal display panel to narrow illumination light beam from the light source along only the widthwise direction of the rectangular display portion. When the illumination light beam from the light source is narrowed along only the widthwise direction of panel, the amount of unused light beam emitted outside the long sides of the display portion can be reduced, and the light beam from the light source can be effectively utilized for image projection.

5. 发明授权

US4925295A Projection display apparatus 失效
标题翻译：投影显示装置
公开(公告)号：US4925295A
公开(公告)日：1990-05-15
申请号：US244805
申请日：1988-09-14
申请人： Masahiro Ogawa , Tatsuo Shimazaki , Osamu Umeda , Toshihiro Aoki , Toru Nakakusu
发明人： Masahiro Ogawa , Tatsuo Shimazaki , Osamu Umeda , Toshihiro Aoki , Toru Nakakusu
IPC分类号： G02F1/133 , G03B21/16 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3144 , G03B21/16 , H04N5/7441 , H04N9/315 , G02F1/133385 , H04N9/3141
摘要： A projection display apparatus includes a light source unit for generating light for image formation, an electro-optical display device for displaying an optical image by utilizing the light emitted from the light source unit, and an enlarging/projection lens. The light source unit, the display device, and the projection lens are accommodated in a housing with vent openings. The housing also includes a fan for cooling the interior of the housing with cool air and a cooler for maintaining a display panel within a predetermined temperature range. The light source unit includes a lamp and a reflector and is designed not to cause image deformation and formation of a shadow of a discharge portion. In order to display a television image on the display device, all television image display circuit units excluding an antenna are accommodated in the housing. The enlarging/projection lens can control a magnification and a focal point of the image projected on the screen.
摘要翻译：投影显示装置包括用于产生用于图像形成的光的光源单元，用于通过利用从光源单元发射的光来显示光学图像的电光显示装置和放大/投影透镜。光源单元，显示装置和投影透镜容纳在具有排气口的壳体中。壳体还包括用冷空气冷却壳体内部的风扇和用于将显示面板保持在预定温度范围内的冷却器。光源单元包括灯和反射器，并且被设计成不会引起图像变形和形成放电部分的阴影。为了在显示装置上显示电视图像，除了天线之外的所有电视图像显示电路单元容纳在外壳中。放大/投影透镜可以控制投影在屏幕上的图像的放大率和焦点。

6. 发明授权

US5398160A Compact power module with a heat spreader 失效
标题翻译：紧凑型电源模块带散热器
公开(公告)号：US5398160A
公开(公告)日：1995-03-14
申请号：US136881
申请日：1993-10-18
申请人： Osamu Umeda
发明人： Osamu Umeda
IPC分类号： H01L23/057 , H01L23/31 , H01L23/373 , H01L25/16 , H05K7/20
CPC分类号： H01L24/32 , H01L23/057 , H01L23/3121 , H01L23/3735 , H01L25/165 , H01L2224/32225 , H01L2224/45124 , H01L2224/45144 , H01L2224/48091 , H01L2224/48227 , H01L2224/73265 , H01L24/45 , H01L24/48 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01029 , H01L2924/01033 , H01L2924/0105 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/13034 , H01L2924/13055 , H01L2924/14 , H01L2924/15747 , H01L2924/15787 , H01L2924/181 , H01L2924/351
摘要： In a power module having at least one power device chip and circuits for driving and controlling the power device chip which are incorporated within one and the same package, a heat spreader which is constituted by a material having a heat dissipation property and supports the power device chip on its upper surface is inserted into an opening formed in a control substrate having an upper surface on which patterns for forming the chip driving and controlling circuits and a connection pattern for connection with the power device chip are printed, and the control substrate and the heat spreader inserted into the opening are fixedly supported on a base substrate. Thus, the power device chip and the control substrate can be disposed in plane and reduced in size.
摘要翻译：在具有至少一个功率器件芯片的功率模块和用于驱动和控制功率器件芯片的电路并入同一个封装中的散热器由散热性材料构成并支撑功率器件将其上表面上的芯片插入形成在具有上表面的控制基板中的开口中，在其上印刷用于形成芯片驱动和控制电路的图案和用于与功率器件芯片连接的连接图案，并且控制基板和插入开口的散热器固定地支撑在基底基板上。因此，功率器件芯片和控制基板可以设置在平面上并减小尺寸。

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