公开(公告)号：US20050140926A1

公开(公告)日：2005-06-30

申请号：US11009053

申请日：2004-12-13

申请人： Koji Hirata ,  Tsutomu Nakashima ,  Masahiko Yatsu

发明人： Koji Hirata ,  Tsutomu Nakashima ,  Masahiko Yatsu

IPC分类号： G02F1/13 ,  G02B27/18 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/00 ,  G03B21/10 ,  G03B21/14 ,  H04N5/74 ,  H04N9/31

CPC分类号： H04N9/3105

摘要： The present invention provides a projection type image display device capable of affording a bright display of a high saturation and capable of ensuring a high reliability of optical parts. The projection type image display device is provided with a color synthesizer for color-synthesizing modulated and polarized light of red light, green light, and blue light, outputted from an image display element. The color synthesizer has an optical characteristic such that the transmittance including reflection by a reflecting film in the interior of the color synthesizer becomes highest for the polarized light of blue light out of the modulated and polarized light of red light, that of green light, and that of blue light. The color synthesizer also has an optical characteristic such that the quantity of the polarized light of blue light outputted becomes largest out of the modulated and polarized light of red light, green light, and blue light.

摘要翻译： 本发明提供了能够提供高饱和度的明亮显示并且能够确保光学部件的高可靠性的投影型图像显示装置。 投影型图像显示装置设置有用于对从图像显示元件输出的红光，绿光和蓝光的调制偏振光进行颜色合成的颜色合成器。 彩色合成器具有这样的光学特性，使得包括彩色合成器内部的反射膜的反射的透射率对于红光的调制偏振光和绿光的偏振光中的蓝色光的偏振光变得最高，以及 蓝光。 彩色合成器还具有使得输出的蓝光的偏振光的量在红光，绿光和蓝光的调制偏振光中变得最大的光学特性。

公开(公告)号：US20050122724A1

公开(公告)日：2005-06-09

申请号：US10105916

申请日：2002-03-20

申请人： Koji Hirata ,  Ryuji Kurihara ,  Nobuo Masuoka

发明人： Koji Hirata ,  Ryuji Kurihara ,  Nobuo Masuoka

IPC分类号： G02B5/08 ,  F21V7/06 ,  F21V7/08 ,  F21V7/10 ,  F21V7/20 ,  F21V7/22 ,  F21W131/40 ,  F21Y101/00 ,  G02B5/10 ,  G02F1/13357 ,  G03B21/00 ,  G03B21/14 ,  G03B21/16 ,  H01J61/073 ,  H01J61/30 ,  H01J61/50 ,  H01J61/52 ,  H01J61/88 ,  H04N5/74

CPC分类号： F21V7/22 ,  F21V29/505 ,  H04N5/74 ,  H04N9/3144 ,  H04N9/315

摘要： A projector light source which facilitates molding of a reflector for obtaining a complicated reflecting surface and provides an improved cooling efficiency, which is characterized by molding the reflector of the light source using heat resistant plastic mixed with a high heat conductive material, whereby a molding accuracy is drastically improved compared to a heat resistant glass reflector, and a highly efficient light source is implemented by increasing a degree of design freedom using a high-order non-spherical reflecting surface. Furthermore, heat conductivity is increased by the use of a high heat conductive material for the reflector and heat dissipation to an outside is facilitated.

摘要翻译： 一种投影光源，其能够成型反射器以获得复杂的反射面并提供改善的冷却效率，其特征在于使用与高导热材料混合的耐热塑料模制光源的反射器，由此成型精度 与耐热玻璃反射器相比显着提高，并且通过使用高次非球面反射表面增加设计自由度来实现高效光源。 此外，通过使用用于反射器的高导热材料来增加导热性，并且便于对外部的散热。

公开(公告)号：US20050117123A1

公开(公告)日：2005-06-02

申请号：US10921938

申请日：2004-08-20

申请人： Masahiko Yatsu ,  Koji Hirata ,  Hidehiro Ikeda

发明人： Masahiko Yatsu ,  Koji Hirata ,  Hidehiro Ikeda

IPC分类号： G02B13/24 ,  G02B9/12 ,  G02B13/18 ,  G02B13/22 ,  G02B27/18 ,  G02F1/13 ,  G02F1/1335 ,  G03B21/00 ,  G03B21/14

CPC分类号： G02B13/22 ,  G03B21/142

摘要： A projection optical unit has two lens groups. A first projection optical unit disposed closest to an image display element, temporarily forms a first enlarged image (magnification: M1) at the image display element side, rather than at a second projection optical unit. The first enlarged image is subsequently projected in an enlarged form (magnification: M2, wherein M2>M1) onto a screen via the second projection optical unit. A field lens group having positive refractive power is disposed between the first projection optical unit and the second projection optical unit. Consequently, the relationship between F2, which is the F-value of the second projection optical unit, and F1, which is the F-value of the first projection optical unit, becomes F2=F1/M1, whereby it is possible to realize very-wide-angle imaging at a field angle exceeding 90 degrees.

摘要翻译： 投影光学单元具有两个透镜组。 靠近图像显示元件设置的第一投影光学单元在图像显示元件侧暂时形成第一放大图像（倍率：M1），而不是在第二投影光学单元处形成。 随后经由第二投影光学单元以放大的形式（倍率：M2，其中M2> M1）将第一放大图像投影到屏幕上。 具有正折光力的场透镜组设置在第一投影光学单元和第二投影光学单元之间。 因此，作为第二投影光学单元的F值的F2与作为第一投影光学单元的F值的F1之间的关系变为F2 = F1 / M1，从而可以非常实现 场角超过90度的全角度成像。

公开(公告)号：US06829031B2

公开(公告)日：2004-12-07

申请号：US10337400

申请日：2003-01-07

申请人： Toru Numata ,  Yasuo Otsuka ,  Mikio Shiraishi ,  Koji Hirata ,  Naoyuki Ogura ,  Shigeru Inaoka ,  Kazunari Nakagawa ,  Shigeru Mori ,  Masahiko Yatsu

发明人： Toru Numata ,  Yasuo Otsuka ,  Mikio Shiraishi ,  Koji Hirata ,  Naoyuki Ogura ,  Shigeru Inaoka ,  Kazunari Nakagawa ,  Shigeru Mori ,  Masahiko Yatsu

IPC分类号： G02F11333

CPC分类号： H04N9/3141 ,  G02F1/133308 ,  G02F1/133385 ,  G02F1/133528 ,  H04N5/7441 ,  H04N9/3102

摘要： For obtaining both high brightness under condition of small-sized and simplified structure and suppression of increase in temperature of liquid crystal display elements and polarizing elements, in a liquid crystal display apparatus, comprising: a liquid crystal display element 2 for converting light from a light source into display picture depending on a driving signal; an optical projection system 1b containing a first optical element 1a and for projecting said light signal toward an object of projection; exit side polarizing elements 3b; a holding member 6 for holding them with the liquid crystal display element 2; and cooling medium 5; incident side polarizing elements 3a, wherein, a space is defined by either one of the incident side polarizing elements 3a and the liquid crystal display element 2, the first optical element 1a, between the liquid crystal display element 2 and the first optical element 1a, and the holding member 6, and said space is filled up with the cooling medium 5.

摘要翻译： 为了在液晶显示装置和液晶显示装置的液晶显示装置和液晶显示装置的温度升高的条件下获得高亮度，并且抑制液晶显示元件和偏振元件的温度升高，包括：液晶显示元件2，用于将来自光的光 根据驱动信号将其输入显示图像; 包含第一光学元件1a并用于将所述光信号投射到投影物体的光学投影系统1b; 出射侧偏振元件3b; 用于将其保持在液晶显示元件2上的保持构件6; 和冷却介质5; 入射侧偏振元件3a，其中，由液晶显示元件2和第一光学元件1a之间的入射侧偏振元件3a和液晶显示元件2中的任一个，第一光学元件1a， 和保持构件6，并且所述空间被冷却介质5填充。

公开(公告)号：US06783242B1

公开(公告)日：2004-08-31

申请号：US10186885

申请日：2002-06-28

申请人： Koji Hirata ,  Masahiko Yatsu ,  Futoshi Yamasaki

发明人： Koji Hirata ,  Masahiko Yatsu ,  Futoshi Yamasaki

IPC分类号： G03B2114

CPC分类号： G02B27/1026 ,  G02B27/1073 ,  G02B27/149 ,  H04N9/3105

摘要： A projection apparatus includes a polarizing converter which converts a light beam from a light source to a polarized beam; a color separator which separates the polarized beam into color beams based on wavelength; first through third optical path modifiers each of which modifies an optical path associated with a corresponding one of the color beams; first through third polarized light separators, each of which receives a corresponding one of the first through third color beams from the optical path modifiers; first through third reflective image display elements, each of which receives a corresponding one of the first through third color beams from the corresponding polarized light separator and provides a reflected beam to the corresponding polarized light separator; a color combiner which combines the reflected beams from the reflective image display elements of the polarized light separator; and a projection lens which projects a color image.

摘要翻译： 投影装置包括将来自光源的光束转换为偏振光束的偏振转换器; 基于波长将偏振光束分成彩色光束的分色器; 第一至第三光路修改器，每个修改器修改与对应的一个色光束相关联的光路; 第一至第三偏振光分离器，每个偏振光分离器从光路修正器接收第一至第三色光束中相应的一个; 第一至第三反射图像显示元件，每个反射图像显示元件从相应的偏振光分离器接收第一至第三色光束中相应的一个，并将反射光束提供给相应的偏振光分离器; 组合来自偏振光分离器的反射图像显示元件的反射光束的组合器; 以及投影彩色图像的投影透镜。

公开(公告)号：US06396641B2

公开(公告)日：2002-05-28

申请号：US09793561

申请日：2001-02-27

申请人： Koji Hirata ,  Naoyuki Ogura ,  Shigeru Mori ,  Takahiro Yoshida ,  Kazunari Nakagawa

发明人： Koji Hirata ,  Naoyuki Ogura ,  Shigeru Mori ,  Takahiro Yoshida ,  Kazunari Nakagawa

IPC分类号： G02B900

CPC分类号： G02B13/06 ,  H04N5/74

摘要： When a projection lens system used for a rear projection type image display apparatus has a first lens group having an aspherical lens surface, a second lens group, a third lens group sharing almost all the positive refractive power of the overall system, a fourth lens group having an aspherical lens surface, a fifth lens group, and a sixth lens group including a lens having a profile of aspherical surface in which the concave surface thereof faces the screen side and the refractive power in the marginal area is weaker than the refractive power around the optical axis, a projection lens system having a large aperture ratio (low F-number), high focus, wide field angle, and sufficient marginal light amount ratio can be realized at a low cost. When a predetermined opening portion is formed in the projection lens and lens barrel, the lens elements are cooled by air suction and exhaust and the lowering of the lens performance due to temperature change can be prevented. When a flange is arranged in a suitable location of the opening portion, entry of a foreign material from the opening portion and light leakage from the inside are prevented and the contrast performance of the projection type image display apparatus can be prevented from lowering.

摘要翻译： 当用于背投型图像显示装置的投影透镜系统具有具有非球面透镜表面的第一透镜组，第二透镜组，共享整个系统的几乎全部正折射力的第三透镜组时，第四透镜组 具有非球面透镜表面，第五透镜组和第六透镜组，所述第六透镜组包括具有非球面形状的透镜，其中凹面朝向屏幕侧，并且边缘区域中的折光力弱于周围的折光力 可以以低成本实现光轴，具有大开口率（低F值），高焦距，宽视野角和足够的边缘光量比的投影透镜系统。 当在投影透镜和透镜镜筒中形成预定的开口部分时，透镜元件通过吸气和排气被冷却，并且可以防止由于温度变化引起的透镜性能的降低。 当凸缘布置在开口部分的适当位置时，防止异物从开口部分进入并从内部漏光，并且可以防止突起型图像显示装置的对比度性能降低。

公开(公告)号：US06392258B1

公开(公告)日：2002-05-21

申请号：US09516160

申请日：2000-02-29

申请人： Koji Hirata ,  Hiroyuki Takazawa

发明人： Koji Hirata ,  Hiroyuki Takazawa

IPC分类号： H01L29737

CPC分类号： H01L29/66318 ,  H01L29/7371 ,  H03F3/195 ,  H03F3/60

摘要： To provide a super high-speed heterojunction bipolar transistor, a semiconductor device including such a heterojunction bipolar transistor has a structure wherein a subcollector layer, collector layer, base layer, emitter layer (InGaP layer) and emitter cap layer are successively formed in predetermined shapes a surface of a semi-insulating GaAs substrate, an inner edge part of a base electrode overlaps a periphery of the emitter layer, and the base electrode is electrically connected to the base layer by an alloy layer formed by alloying the emitter layer under the base electrode. The emitter layer is selectively formed on the base layer. The base electrode extends from the peripheral part of the emitter layer across the base layer, and the alloy layer extends to a midway depth of the base layer. The edge of the base layer is situated further inside than the outer edge of the base electrode.

摘要翻译： 为了提供超高速异质结双极晶体管，包括这种异质结双极晶体管的半导体器件具有其中以预定形状连续形成子集电极层，集电极层，基极层，发射极层（InGaP层）和发射极盖层的结构 半绝缘GaAs衬底的表面，基极的内边缘部分与发射极层的周边重叠，并且基极通过合金层与基底层电连接，所述合金层通过将发射极层合在基底 电极。 发射极层选择性地形成在基底层上。 基极从发射极层的周边部分穿过基底层延伸，合金层延伸到基底层的中间深度。 基层的边缘比基极的外边缘更靠内侧。

公开(公告)号：US06342929B1

公开(公告)日：2002-01-29

申请号：US09598047

申请日：2000-06-21

申请人： Koji Hirata ,  Kazunari Nakagawa ,  Tomoharu Nakiri ,  Naoyuki Ogura ,  Chihiro Egawa

发明人： Koji Hirata ,  Kazunari Nakagawa ,  Tomoharu Nakiri ,  Naoyuki Ogura ,  Chihiro Egawa

IPC分类号： H04N931

CPC分类号： H04N9/31

摘要： The projection image display apparatus includes a plurality of image generating sources for generating three primary colors, including red, green, blue image light, respectively, and a projection lens containing a plurality of lens elements provided in correspondence with each of said image generating sources for enlarging/projecting images displayed by the image generating sources onto a screen. The projection lens corresponding to the red image generating source includes a light transmitter that satisfies the condition: TRS

摘要翻译： 投影图像显示装置包括分别产生红色，绿色，蓝色图像光的三原色的多个图像产生源，以及包含与每个所述图像生成源对应地设置的多个透镜元素的投影透镜， 将由图像生成源显示的图像放大/投影到屏幕上。 对应于红色图像发生源的投影透镜包括满足以下条件的光发射器：TRS

公开(公告)号：US06299313B1

公开(公告)日：2001-10-09

申请号：US09626787

申请日：2000-07-26

申请人： Koji Hirata ,  Shigeru Mori ,  Naoyuki Ogura ,  Yasuo Otsuka

发明人： Koji Hirata ,  Shigeru Mori ,  Naoyuki Ogura ,  Yasuo Otsuka

IPC分类号： G03B2118

CPC分类号： G02B27/148 ,  G02B9/12 ,  G02B13/16

摘要： A projection display apparatus including an optical modulator for modulating an incident light from a light source, and a projection lens device for projecting the light modulated by the optical modulator. The optical modulator includes a liquid crystal panel, a cooling liquid filled up at least within a space defined between the liquid crystal panel and a lens of the projection lens device which is located closest to a light source side, and a polarizing plate. The polarizing plate is positioned in the space so that opposite surfaces of the polarizing plate contact the cooling liquid.

摘要翻译： 一种投影显示装置，包括用于调制来自光源的入射光的光调制器和用于投影由光调制器调制的光的投影透镜装置。 光调制器包括液晶面板，至少填充在液晶面板和位于最靠近光源侧的投影透镜装置的透镜之间的空间内的冷却液和偏振片。 偏振板位于空间中，使得偏振片的相对表面接触冷却液。

公开(公告)号：US5949097A

公开(公告)日：1999-09-07

申请号：US932939

申请日：1997-09-17

申请人： Koji Hirata ,  Tomonori Tanoue ,  Hiroshi Masuda ,  Hiroyuki Uchiyama ,  Kazuhiro Mochizuki

发明人： Koji Hirata ,  Tomonori Tanoue ,  Hiroshi Masuda ,  Hiroyuki Uchiyama ,  Kazuhiro Mochizuki

IPC分类号： H01L21/331 ,  H01L21/768 ,  H01L27/06 ,  H01L29/737 ,  H01L29/04

CPC分类号： H01L29/66318 ,  H01L27/0605 ,  H01L29/7371

摘要： The present invention relates to a contact structure not only for a semiconductor device having a hetero-junction bipolar transistor or a hetero-insulated gate field effect transistor but also for semiconductor devices at large. In a semiconductor layer of a polycrystalline or amorphous undoped III-V compound semiconductor or an alloy thereof, a through hole is formed for contact. The size of the through hole is set to permit exposure of at least part of a first conductor layer and a dielectric layer, such as an Si compound, present around the first conductor layer, and a second conductor layer is formed within the through hole so as to contact the first conductor layer. Since the semiconductor layer can be subjected to a selective dry etching for the dielectric layer, the dielectric layer is not etched at the time of forming the above through hole in the semiconductor layer. As a result an electric short-circuit of the second conductor layer with a single crystal semiconductor layer which underlies the dielectric layer can be prevented.

摘要翻译： 本发明涉及不仅具有异质结双极晶体管或异质绝缘栅场效应晶体管的半导体器件的接触结构，而且还涉及用于半导体器件的半导体器件。 在多晶或非晶未掺杂的III-V族化合物半导体的半导体层或其合金中，形成用于接触的通孔。 通孔的尺寸被设定为允许暴露在第一导体层周围的第一导体层和诸如Si化合物的电介质层的至少一部分，并且在通孔内形成第二导体层，因此 以接触第一导体层。 由于可以对半导体层进行电介质层的选择性干蚀刻，所以在形成半导体层中的上述通孔时不会蚀刻电介质层。 结果，可以防止具有位于电介质层下面的单晶半导体层的第二导体层的电短路。