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1. 发明公开

EP0752608A4 PROJECTION TYPE DISPLAY DEVICE 失效
标题翻译： ANZEIGEVORRICHTUNG VOM PROJEKTIONSTYP
公开(公告)号：EP0752608A4
公开(公告)日：1998-01-14
申请号：EP95941896
申请日：1995-12-26
申请人： SEIKO EPSON CORP
发明人： YAJIMA AKITAKA , FUJIMORI MOTOYUKI , FURUHATA MUTSUYA , USHIYAMA TOMIYOSHI , KOIDE TERUNAGA , HASHIZUME TOSHIAKI , MIYASHITA KIYOSHI , HARIMA HIROSHI , NAITO KEIJIRO
IPC分类号： G02B27/14 , G03B21/14 , H04N5/74 , H04N9/31 , G02F1/13
CPC分类号： G03B33/12 , G02B27/1046 , G02B27/1073 , G02B27/145 , G02B27/149 , H04N9/3105 , H04N9/312 , H04N9/3141 , H04N9/3144 , H04N9/317 , H04N9/3182
摘要： A projection type display device which prevents light from a dichroic prism (910) constituting color synthesis means of an optical system, etc., from entering the back side of a liquid crystal light valve. The dichroic prism (910) comprises four triangular prisms having an equal refractive index, and a glass filter (912) for absorbing and cutting off a blue luminous flux is bonded to the incidence surface (910R) of a red luminous flux. After passing through each light valve (925), a modulated luminous flux of each color passes through a prism unit, is reflected by its X-shaped reflection surface and is directed toward the projection lens unit 6. At this time, part of the blue luminous flux may not be reflected by the reflection surface but incident on the back of the red light valve (925R). Light leaking from the prism in this way is absorbed and cut off by the filter (912). Accordingly, it is possible to prevent the erroneous operation of the liquid crystal light valve due to the entrance of light from the back surface.
摘要翻译：公开了包括四个三角棱镜（910a-910d）的棱镜单元。在四个棱镜中，第一棱镜（910c）和第三棱镜（910d）在垂直方向上存在第一阶差的状态下相互固定。第一曝光侧形成在第一棱镜（910c）的固定侧的一个边缘上。类似地，第二棱镜（910a）和第四棱镜彼此附接，使得在同一边缘上存在第二阶梯差，并且第二暴露侧形成在第二棱镜（910a）的固定表面的一个边缘上）。此外，第一和第三棱镜和第二和第四棱镜以它们之间的台阶差附接，使得上述第一曝光侧和上述第二曝光侧位于面向相同方向的边缘上 ; 并且在上述第一棱镜（910c）和上述第二棱镜（910a）之间形成有与上述第一和第二露出面（910f）正交的第三露出面（910j）。

2. 发明公开

EP0952473A4 PROJECTION TYPE DISPLAY 审中-公开
标题翻译： PROJEKTIONSANZEIGEVORRICHTUNG
公开(公告)号：EP0952473A4
公开(公告)日：2001-08-29
申请号：EP98947806
申请日：1998-10-09
申请人： SEIKO EPSON CORP
发明人： YAJIMA AKITAKA , OGAWA YASUNORI , ITO JIRO
IPC分类号： G03B21/14 , G02B27/00 , G02B27/18 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3105 , G02B27/0927 , G02B27/0961 , H04N5/7441
摘要： A projection type display (1) wherein the outgoing light from an illuminating optical system (80) is diffused by a microlens (101) formed on a liquid crystal light bulb (100R), the outgoing light, which is diffused by the microlens (101), from the liquid crystal light bulb (100R) being received efficiently in a projection optical system (60) an F-number of which is set smaller than that of the illuminating optical system (80), whereby a decrease in a utilization efficiency of light ascribed to the diffusion of light by the microlens (101) can be prevented, the projection type display in which the microlens-carrying liquid crystal light bulb is incorporated being capable of providing a bright projected image.
摘要翻译：一种投影型显示器（1），其中来自照明光学系统（80）的出射光由形成在液晶灯泡（100R）上的微透镜（101）漫射，由微透镜（101））的投影光学系统（60）中的液晶灯泡（100R）被有效地接收的F数设定得比照明光学系统（80）小，从而降低可以防止归因于由微透镜（101）引起的光扩散的光，其中包含携带微透镜的液晶灯泡的投影型显示器能够提供明亮的投影图像。

3. 发明公开

EP1061408A4 ILLUMINATOR AND PROJECTION DISPLAY 审中-公开
标题翻译：照明系统和投影显示器
公开(公告)号：EP1061408A4
公开(公告)日：2003-06-04
申请号：EP99959903
申请日：1999-12-17
申请人： SEIKO EPSON CORP
发明人： YAJIMA AKITAKA
IPC分类号： G02B19/00 , G02B27/14 , G03B21/14 , H04N5/74 , H04N9/31 , G02B27/18 , G02F1/13 , G03B21/20
CPC分类号： G02B27/123 , G02B27/1046 , G02B27/145 , G02B27/149 , H04N5/74 , H04N5/7441 , H04N9/3105
摘要： The color unevenness of the projected picture is reduced and the contrast is improved. A projection display has an illuminator for illuminating light modulating means for demodulating light according to picture information. The illuminator has a light source for emitting light along the optical axis of the light source, a first lens array having small lenses for dividing the light beam emitted from the light source into partial light beams, superimposing means for superimposing the partial light beams emerging from the first lens array so that a substantially uniform light intensity distribution at the light modulating means may be established, and subtended angle decreasing means provided between the superimposing means and the light modulating means. The subtended angle decreasing means decreases the subtended angle of the light beam emerging from the superimposing means and falling on the light modulating means to a smaller value than that of when the subtended angle decreasing means is not provided.

4. 发明公开

EP0646828A4 PROJECTION TYPE DISPLAY DEVICE. 失效
标题翻译：显示设备从项目TION TYPE。
公开(公告)号：EP0646828A4
公开(公告)日：1995-07-19
申请号：EP94910021
申请日：1994-03-16
申请人： SEIKO EPSON CORP
发明人： NAKAYAMA TADAAKI , ITOH YOSHITAKA , YAJIMA AKITAKA
IPC分类号： G03B21/20 , G03B33/12 , H04N5/74 , H04N9/31 , G02F1/13 , G02F1/1335
CPC分类号： G02B3/0043 , G02B3/005 , G02B3/0056 , G02B3/0062 , G03B21/208 , G03B33/12 , H04N5/7441 , H04N9/3105 , H04N9/3167
摘要： A projection type display device (1) comprises an illumination optical system (2A), a color separation system (4) for separating white light (W) entering from the optical system (2A) into color beams (R, G, B); three liquid crystal panels (5R, 5G, 5B) for modulating the respective color beams; a waveguide system (9) disposed on the optical path of the beam (G), which is the longest of all the paths of the separated beams that enter the three light valves; a dichroic prism (6) for combining the beams modulated through the liquid crystal panels; and a projection lens (7) for projecting the combined light on a screen (8). The illumination optical system (2A) is equipped with a uniform illumination optical device (3) which converts white light to a uniform rectangular beam. The dichroic prism as an optical element having symmetry of rotation with respect to the axis of the projection optical system is used for the color synthesis system, and the uniform illumination optical device for suppressing the unevenness in color and illuminance is assembled in the illumination optical system. Accordingly, the display device has high illumination efficiency with less unevenness in color and illuminance.

5. 发明公开

EP3073319A4 DISPLAY DEVICE 审中-公开
标题翻译： ANZEIGEVORRICHTUNG
公开(公告)号：EP3073319A4
公开(公告)日：2017-07-12
申请号：EP14864314
申请日：2014-11-21
申请人： SEIKO EPSON CORP
发明人： OTANI MAKOTO , YAJIMA AKITAKA
IPC分类号： G03B21/20 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3155 , G03B21/005 , G03B21/208 , H04N9/3102 , H04N9/3152

6. 发明公开

EP1281996A4 ZOOM LENS DEVICE, OPTICAL DEVICE COMPRISING THE SAME, AND PROJECTOR 审中-公开
标题翻译： VARIO LENS这样装备的光学装置及投影机
公开(公告)号：EP1281996A4
公开(公告)日：2005-12-21
申请号：EP01956980
申请日：2001-08-20
申请人： SEIKO EPSON CORP
发明人： NARIMATSU SHUJI , YAJIMA AKITAKA
IPC分类号： G02B7/10 , G02B15/177 , G02B27/28 , G02B7/04
CPC分类号： G02B15/177 , G02B7/10
摘要： A zoom lens device (10) comprises lens groups (11, 12, 13, 14, 15). The third lens group (compensator lens group) (13) is disposed between the two second and fourth lens groups (12, 14) constituting a variator lens group. The second and fourth lens groups (12, 14) are held by a common variator lens frame (22) and moved in a unit. Thus degradation of optical characteristics due to misalignment of the lens groups can be avoided even if lens groups are combined into such a structure. An optical device and a projector are also disclosed.

7. 发明公开

EP0833548A4 LIGHT SOURCE LAMP UNIT, LIGHT SOURCE DEVICE, AND PROJECTION DISPLAY DEVICE 失效
标题翻译： BELEUCHTUNGSEINHEIT，LICHTQUELLEN- UND PROJEKTIONSANZEIGEVORRICHTUNG
公开(公告)号：EP0833548A4
公开(公告)日：2001-01-03
申请号：EP97908535
申请日：1997-03-27
申请人： SEIKO EPSON CORP
发明人： MIYASHITA KIYOSHI , SHINOHARA KAZUTO , HABA SHINJI , YAJIMA AKITAKA , USHIYAMA TOMIYOSHI
IPC分类号： G03B21/20 , G09G3/34 , H04N5/74 , H04N9/31 , H05B37/03 , H05B41/36 , H05B41/16 , G02F1/133 , G09F9/00 , H05B37/02
CPC分类号： H04N9/315 , G03B21/2053 , G09G3/3406 , H04N9/3141 , H04N9/3155 , H05B37/03 , H05B41/36
摘要： A light source device (100) is provided with a light source lamp unit (1) which is detachably attached to the device (100) and a CPU (101) which constitutes the drive control means of the lamp unit. The CPU (101) detects the information about the electric power and service life of a lamp and whether the lamp is new or old carried by the lamp information carrying section (5) of the unit (1) and, when the lamp is turned on, counts the cumulative operating hour of the lamp. The CPU (101) compares the detected service life with the cumulative operating hour and, when the service life has expired, forcibly turns off the lamp. The CPU (101) also warns the user of the necessity of replacing the lamp by displaying a warning a fixed period of time short of the expiration of the service life. Since the information about the kind and characteristics of the lamp is carried by the lamp information carrying section (5) of the unit (1), the light source device (100) can appropriately discriminate and control the turning on/off and service life of a lamp even when a different kind of light source lamp unit is used.
摘要翻译：投影型显示装置（200）包括光源装置，第一和第二透镜板（921,922）和光阀（925）。光源装置包括光源灯（2），用于反射来自光源灯的发散光束的反射镜（3）和从发光结束引出的电极引线（26a）所述光源灯的管（24）从所述反射镜的反射表面（31）向前突出并且连接到位于所述反射镜的后侧的外部连接端子板（6）。电极引线经由反射镜的除有效反射区域的部分布线，并且位于反射表面一侧的电极引线的部分沿着多个透镜结构的凹槽（921b，921c）布置的第一透镜板的透镜。

8. 发明公开

EP0829739A4 POLARIZED LIGHT SEPARATOR, METHOD OF MANUFACTURING THE SAME, AND PROJECTION DISPLAY 失效
标题翻译： POLARISATIONSSTRAHLTEILER，VERFAHREN ZU SEINER HERSTELLUNG UND PROJEKTIONSANZEIGE
公开(公告)号：EP0829739A4
公开(公告)日：1998-12-02
申请号：EP97907298
申请日：1997-03-12
申请人： SEIKO EPSON CORP
发明人： HASHIZUME TOSHIAKI , ITOH YOSHITAKA , YAJIMA AKITAKA
IPC分类号： G02B5/30 , G02B5/04 , G02B19/00 , G02B27/18 , G02B27/28 , G02F1/13 , G02F1/1335 , G03B21/00 , G03B21/14 , G09F9/00 , H04N5/74 , H04N9/31
CPC分类号： G02B27/285 , G02B5/3025 , G02B5/3041 , G02B27/283 , H04N5/7441 , H04N9/3105 , H04N9/3167
摘要： A plate-like polarized light separator of a structure in which polarized light separating film surfaces and reflecting film surfaces are arranged alternately at fine pitches, and a projection display using such a polarized light separator. In the process for manufacturing such a polarized light separator, a glass block consisting of glass plates each having a polarized light separating multilayer film of an inorganic material, and glass plates each having a light reflecting surface are stuck alternately, is cut obliquely with respect to the stuck surfaces. At least one of the sides of the plate-like block thus cut off may be provided with a projecting used for the positioning of the polarized light separator. When a μ/2 phase plate is joined to a part of the light-outgoing surface of this polarized light separator, the polarized light separator which outputs either of s polarized component or p polarized component of light emitted from a light source is obtained. Such a polarized light separator can be utilized for a projection display.
摘要翻译：偏振光分离膜表面与反射膜表面以微小间距交替排列的结构的板状偏振光分离器以及使用这种偏振光分离器的投影显示器。在这种偏振光分离装置的制造方法中，将由具有无机材料的偏振光分离多层膜的玻璃板和具有光反射面的玻璃板交替地贴合而成的玻璃块相对于被卡住的表面。如此切下的板状块的至少一个侧面可以设置有用于偏振光分离器的定位的突出部。当在该偏振光分离器的出射面的一部分接合μ/ 2相位差板时，可以得到输出从光源射出的光的s偏振光成分或p偏振光成分中的任一个的偏振光分离器。这种偏振光分离器可以用于投影显示器。

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