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1. 发明申请

WO1997050012A1 POLARIZATION CONVERSION ELEMENT, POLARIZATION ILLUMINATOR, DISPLAY USING THE SAME ILLUMINATOR, AND PROJECTION TYPE DISPLAY 审中-公开
标题翻译：极化转换元件，极化照明器，使用相同的照明器的显示器和投影类型显示器
公开(公告)号：WO1997050012A1
公开(公告)日：1997-12-31
申请号：PCT/JP1997002189
申请日：1997-06-25
申请人： SEIKO EPSON CORPORATION , ITOH, Yoshitaka , HASHIZUME, Toshiaki
发明人： SEIKO EPSON CORPORATION
IPC分类号： G02B27/28
CPC分类号： G02B27/285 , G02B27/283 , G02F1/133536 , G02F1/13362 , G02F2001/13355
摘要： A first optical element (200) for condensing an incident beam and forming a plurality of spatially separated intermediate beams, and a second optical element (300) capable of spatially separating the intermediate beams into two polarization beams, aligning the polarizing directions of the two polarization beams and forming one kind of polarization beam are provided. The second optical element (300) is provided with a light shading plate (370) for preventing the light from directly entering a portion corresponding to a reflecting surface of a polarization separating unit array, to improve the performance of separating the intermediate beams into two polarization beams. Accordingly, the intermediate beams can be converted into one kind of polarization beams, the polarizing directions of which are aligned, with a high efficiency.
摘要翻译：一种用于聚集入射光束并形成多个空间分离的中间光束的第一光学元件（200）和能够将中间光束空间分离成两个偏振光束的第二光学元件（300），使两个极化的偏振方向对准提供了一种形成一种偏振光束的光束。第二光学元件（300）设置有用于防止光直接进入与偏振分离单元阵列的反射表面相对应的部分的遮光板（370），以提高将中间光束分离成两极化的性能梁。因此，能够高效率地将中间光束转换为偏振光方向对准的一种偏振光束。

2. 发明申请

WO1992015041A1 PROJECTION-TYPE LIQUID CRYSTALLINE PROJECTOR 审中-公开
标题翻译：投影型液晶投影机
公开(公告)号：WO1992015041A1
公开(公告)日：1992-09-03
申请号：PCT/JP1992000183
申请日：1992-02-21
申请人： SEIKO EPSON CORPORATION , FUJIMORI, Motoyuki , HASHIZUME, Toshiaki , IGUCHI, Kenji , SAKAGAMI, Keisuke , OKUMURA, Kiichi
发明人： SEIKO EPSON CORPORATION
IPC分类号： G03B33/12
CPC分类号： H04N9/3105 , H04N9/3141 , H04N9/3144 , H04N9/317
摘要： A projector for synthesizing and projecting an image of three primary colors formed by liquid-crystal light bulbs, wherein deviation in pixels and color shading are improved by correcting errors of the position and angles of mounting the liquid-crystal light bulbs and by eliminating effects on parts caused by the heat of the source of light. For this purpose, there are arranged a plurality of dichroic mirrors, for separating white light into three primary colors, liquid-crystal light bulbs of the three primary colors, and a dichroic mirror for synthesizing the image. The liquid-crystal light bulb of one color is arranged at a central portion of the housing, and the liquid-crystal light bulbs of the remaining two colors are arranged symmetrically with respect to the first one. Pixels of the two symmetrical liquid-crystal light bulbs are adjusted for their positions relative to each other with respect to pixels of liquid-crystal light bulb in the center.

3. 发明申请

WO1998019206A1 PROJECTION DISPLAY 审中-公开
标题翻译：投影显示
公开(公告)号：WO1998019206A1
公开(公告)日：1998-05-07
申请号：PCT/JP1997003982
申请日：1997-10-30
申请人： SEIKO EPSON CORPORATION , HASHIZUME, Toshiaki
发明人： SEIKO EPSON CORPORATION
IPC分类号： G02F01/133
CPC分类号： H04N9/3105
摘要： A lambda /4-phase-difference plate (821) is disposed on an optical path for blue light between a liquid crystal light bulb (811) for blue light and a cross-dichroic prism (813). The blue light of s-polarized light entering the liquid crystal light bulb (811) for blue light permeates as it is through a s-polarized light permeating polarization plate (811a), and is modulated by a liquid crystal panel (811b), a part of the modulated light being converted into p-polarized light, which permeates through a p-polarized light permeating polarization plate (811c) to be outputted. The outputted p-polarized light enters a lambda /4-phase-difference plate and is converted into circular polarized light and outputted to enter the cross-dichroic prism (813). The circular polarized light reflected off a red light reflecting film (831) and a blue light reflecting film (833) and entering the lambda /4-phase-difference plate (821) again is converted into s-polarized light and applied to the liquid crystal light bulb (811) for blue light but it is shut off by the p-polarized light permeating polarization plate (811c), whereby the influence upon the liquid crystal panel (811b) is prevented.
摘要翻译：在用于蓝光的液晶灯泡（811）和交叉二向色棱镜（813）之间的蓝光光路上设置λ/ 4相差板（821）。进入用于蓝色光的液晶灯泡（811）的s偏振光的蓝色光通过s偏振光透过偏振板（811a）透过，并被液晶面板（811b）调制，调制光的一部分被转换为p偏振光，其透过p偏振光透射偏振板（811c）输出。输出的p偏振光进入λ/ 4相位差板并转换为圆偏振光，并输出进入交叉二向色棱镜（813）。从红色光反射膜（831）和蓝色光反射膜（833）反射并再次进入λ/ 4相位差板（821）的圆偏振光转换成s偏振光并施加到液体用于蓝色光的水晶灯泡（811），但是被p偏振光透过偏振片（811c）切断，从而防止对液晶面板（811b）的影响。

4. 发明申请

WO1996020424A1 PROJECTION TYPE DISPLAY DEVICE 审中-公开
标题翻译：投影型显示设备
公开(公告)号：WO1996020424A1
公开(公告)日：1996-07-04
申请号：PCT/JP1995002695
申请日：1995-12-26
申请人： SEIKO EPSON CORPORATION , YAJIMA, Akitaka , FUJIMORI, Motoyuki , FURUHATA, Mutsuya , USHIYAMA, Tomiyoshi , KOIDE, Terunaga , HASHIZUME, Toshiaki , MIYASHITA, Kiyoshi , HARIMA, Hiroshi , NAITO, Keijiro
发明人： SEIKO EPSON CORPORATION
IPC分类号： G02F01/13
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：一种防止来自构成光学系统的颜色合成装置等的二向色棱镜（910）的光进入液晶光阀背面的投射型显示装置。二向色棱镜（910）包括具有相同折射率的四个三棱镜，并且用于吸收和切断蓝色光束的玻璃滤光器（912）被结合到红色光通量的入射表面（910R）。在通过每个光阀（925）之后，每种颜色的调制光通量通过棱镜单元，被其X形反射面反射并被指向投影透镜单元6.此时，部分蓝色光通量可能不被反射表面反射，而是入射到红光阀（925R）的背面。以这种方式从棱镜泄漏的光被过滤器（912）吸收并切断。因此，可以防止由于来自背面的光的入射引起的液晶光阀的错误操作。

5. 发明申请

WO1998019212A1 PROJECTION DISPLAY AND ILLUMINATING OPTICAL SYSTEM FOR IT 审中-公开
标题翻译：投影显示和照明光学系统
公开(公告)号：WO1998019212A1
公开(公告)日：1998-05-07
申请号：PCT/JP1997003901
申请日：1997-10-27
申请人： SEIKO EPSON CORPORATION , ITOH, Yoshitaka , HASHIZUME, Toshiaki
发明人： SEIKO EPSON CORPORATION
IPC分类号： G03B21/00
CPC分类号： G02B3/0043 , G02B3/0056 , G02B3/0062 , G02B27/1046 , G02B27/123 , G02B27/145 , G02B27/149 , G02B27/283 , G02B27/285 , G03B33/12 , H04N5/74 , H04N5/7441 , H04N9/3105 , H04N9/315
摘要： A dark line attributed to the center axis of a cross dichroic prism is made inconspicuous. Out of the small lenses constituting a second lens array, the small lenses (132a, 132b, 132c) arranged at the same row direction positions have different optical axes shifted from the centers of the lenses (132a, 132b and 132c). The small lenses (132a, 132b and 132c) are for illuminating the different regions (2561a, 2571a and 2581a) of the partial fluxes of light so that the center axes of the partial fluxes of light transmitted through the respective small lenses (132a, 132b and 132c) pass through the different positions relative to the center of the illuminated regions (252a) of a liquid crystal light bulb (252).
摘要翻译：归因于十字分色棱镜的中心轴的暗线变得不明显。在构成第二透镜阵列的小透镜中，布置在相同行方向位置的小透镜（132a，132b，132c）具有从透镜（132a，132b和132c）的中心偏移的不同光轴。小透镜（132a，132b和132c）用于照射部分光通量的不同区域（2561a，2571a和2581a），使得透过各个小透镜（132a，132b）的部分光束的中心轴线 132c）相对于液晶灯泡（252）的被照射区域（252a）的中心穿过不同的位置。

6. 发明申请

WO1997034173A1 POLARIZED LIGHT SEPARATOR, METHOD OF MANUFACTURING THE SAME, AND PROJECTION DISPLAY 审中-公开
标题翻译：偏振光分离器，其制造方法和投影显示器
公开(公告)号：WO1997034173A1
公开(公告)日：1997-09-18
申请号：PCT/JP1997000790
申请日：1997-03-12
申请人： SEIKO EPSON CORPORATION , HASHIZUME, Toshiaki , ITOH, Yoshitaka , YAJIMA, Akitaka
发明人： SEIKO EPSON CORPORATION
IPC分类号： G02B05/30
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 lambda /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：偏振光分离膜表面和反射膜表面的结构的板状偏振光分离器以精细的间距交替排列，并且使用这种偏振光分离器进行投影显示。在制造这种偏振光分离器的过程中，将由玻璃板组成的玻璃块，每个玻璃板均具有无机材料的偏振光分离多层膜，以及各自具有光反射表面的玻璃板相对于卡住的表面。如此切割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λ/ 2相位板与该偏振光分离器的一部分光出射面接合时，输出偏振分量或 p < 获得从光源发射的光的偏振分量。这种偏振光分离器可用于投影显示。

7. 发明申请

WO1998019211A1 PROJECTION DISPLAY AND ILLUMINATING OPTICAL SYSTEM THEREFOR 审中-公开
标题翻译：投影显示和照明光学系统
公开(公告)号：WO1998019211A1
公开(公告)日：1998-05-07
申请号：PCT/JP1997003900
申请日：1997-10-27
申请人： SEIKO EPSON CORPORATION , HASHIZUME, Toshiaki , ITOH, Yoshitaka
发明人： SEIKO EPSON CORPORATION
IPC分类号： G03B21/00
CPC分类号： G03B33/12 , G02B3/0043 , G02B3/0056 , G02B3/0062 , G02B27/1046 , G02B27/141 , G02B27/143 , G02B27/145 , G02B27/149 , G02B27/283 , G02F1/133605 , G02F1/13362 , G02F2001/133607 , G03B21/2073 , H04N5/74 , H04N5/7441 , H04N9/3105 , H04N9/315
摘要： A dark line attributed to the center axis of a cross dichroic prism is made inconspicuous. A stepped reflecting mirror (150) is provided between a 2nd lens array (130) and a condenser lens (160). The stepped reflecting mirror (150) has a function of shifting the light paths of part of a plurality of partial fluxes of light which are transmitted through a plurality of small lenses arranged at the same row direction positions of the lens arrays (120 and 130) from the light paths of the other partial fluxes of light. A flat light transmitting plate may be provided instead of the stepped reflecting mirror (150) to shift the light paths. Alternatively, part of the columns of the lens arrays (120 and 130) may be shifted from each other to shift the partial fluxes of light.
摘要翻译：归因于十字分色棱镜的中心轴的暗线变得不明显。在第二透镜阵列（130）和聚光透镜（160）之间设置阶梯式反射镜（150）。阶梯式反射镜（150）具有使透过多个透镜阵列（120,130）的行方向位置的多个小透镜的多个部分光通量偏移的部分的光路的功能，从其他部分光通量的光路。可以设置平坦的透光板来代替阶梯式反射镜（150）以移动光路。或者，透镜阵列（120和130）的列的一部分可以彼此偏移以偏移部分光通量。

8. 发明申请

WO1998009113A1 ILLUMINATING APPARATUS AND PROJECTION DISPLAY 审中-公开
标题翻译：照明设备和投影显示
公开(公告)号：WO1998009113A1
公开(公告)日：1998-03-05
申请号：PCT/JP1997002953
申请日：1997-08-25
申请人： SEIKO EPSON CORPORATION , ITOH, Yoshitaka , HASHIZUME, Toshiaki
发明人： SEIKO EPSON CORPORATION
IPC分类号： F21V07/06
CPC分类号： H04N9/3164 , G02B3/0056 , G02B27/0961 , G02B27/285 , H04N5/74 , H04N5/7441 , H04N9/3105
摘要： An illuminating apparatus which has two lamp units suitable for the illuminating light source of a projection display and enables the bright illumination. A projection display using the illuminating apparatus is also disclosed. The illuminating apparatus has a light source unit and an integrator optical system. Light emitted from the light source unit illuminates an illumination region uniformly through the integrator optical system. The light source unit has a pair of lamp units which are arranged in parallel with each other. The reflectors of the lamp units have outline shapes whose both sides are cut off. It is preferable that the pair of the lamp units are arranged in a direction perpendicular to the longitudinal direction of the illumination region. With this constitution, the illuminating apparatus which is small in size and compact and emits high luminous energy can be realized. If such illuminating apparatus is applied to a projection display, a uniform and bright image can be projected.
摘要翻译：一种照明装置，其具有适用于投影显示器的照明光源的两个灯单元，并且能够进行明亮的照明。还公开了使用照明装置的投影显示。照明装置具有光源单元和积分器光学系统。从光源单元发出的光通过积分器光学系统均匀地照射照明区域。光源单元具有彼此平行布置的一对灯单元。灯单元的反射器具有两侧被切断的轮廓形状。优选地，一对灯单元沿与照明区域的纵向垂直的方向布置。利用这种结构，能够实现尺寸小，结构紧凑，发光性高的照明装置。如果将这种照明装置应用于投影显示器，则可以投射均匀且明亮的图像。

9. 发明申请

WO1999021181A1 RECORDER 审中-公开
标题翻译：录音机
公开(公告)号：WO1999021181A1
公开(公告)日：1999-04-29
申请号：PCT/JP1997003750
申请日：1997-10-16
申请人： SEIKO EPSON CORPORATION , YAMADA, Hideaki
发明人： SEIKO EPSON CORPORATION
IPC分类号： G11B07/09
CPC分类号： B23K26/04 , G11B7/0908 , G11B7/261
摘要： A PD (81) is positioned at a predetermined position on an optical table, the rotation of a resist master (110) is stopped, a focusing laser (73) is driven, and a head (77) is positioned in a proper position by a head slider control circuit (101). The master (110) is turned, a focusing servo circuit (103) is started and, the PD (81) is moved horizontally by a focus fine adjustment circuit (99) by a minute distance corresponding to an estimated adequate focus position data. Since the difference between voltage signals from the two output terminals of the PD (81) is varied because of the surface vibration and minute movement caused by the rotation of the master (110), a differential amplifier (103a) moves a recording lens (77a) vertically by a distance of several microns so as to make an error signal zero. Numerical information on a digital display (93) at this time is compared with the focus position data. When both of them agree with each other, the focus position data is employed as an adequate focus position data and used for the initial setting of the adequate focus position. When they do not agree with each other, the numerical information is employed as the adequate focus position data and the focus position data is rewritten. By using the numerical adequate focus position data, the inital setting of the adequate focus position matching the type of the resist master can be carried out easily.
摘要翻译： PD（81）位于光学平台上的预定位置，停止抗蚀剂母体（110）的旋转，驱动聚焦激光（73），并且通过以下方式将头（77）定位在适当位置：磁头滑块控制电路（101）。主机（110）转动，聚焦伺服电路（103）启动，PD（81）由焦点微调电路（99）水平移动与估计的足够对焦位置数据相对应的微小距离。由于由于主机（110）的旋转引起的表面振动和微小移动，PD（81）的两个输出端子的电压信号之间的差异是变化的，差分放大器（103a）使记录透镜（77a）移动）垂直延伸几微米的距离，以使误差信号为零。此时将数字显示器（93）上的数值信息与焦点位置数据进行比较。当它们都彼此一致时，聚焦位置数据被用作适当的聚焦位置数据，并用于初始设定足够的聚焦位置。当它们不一致时，使用数字信息作为适当的焦点位置数据，并且重写焦点位置数据。通过使用数值适当的聚焦位置数据，可以容易地进行与抗蚀剂母版类型匹配的适当聚焦位置的初始设置。

10. 发明申请

WO1998031104A1 PLL OSCILLATOR AND METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译： PLL振荡器及其制造方法
公开(公告)号：WO1998031104A1
公开(公告)日：1998-07-16
申请号：PCT/JP1997000019
申请日：1997-01-09
申请人： SEIKO EPSON CORPORATION , SHIGEMORI, Mikio , KARASAWA, Hideo
发明人： SEIKO EPSON CORPORATION
IPC分类号： H03L07/08
CPC分类号： H01L24/06 , G06F1/08 , H01L23/49596 , H01L24/48 , H01L24/49 , H01L2224/05554 , H01L2224/05599 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2224/49113 , H01L2224/49171 , H01L2924/00014 , H01L2924/01013 , H01L2924/01078 , H01L2924/12034 , H01L2924/12042 , H01L2924/14 , H01L2924/15787 , H01L2924/16195 , H01L2924/181 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H01L2924/30105 , H01L2924/3011 , H03J2200/10 , H03L1/023 , H03L7/183 , H01L2224/45099 , H01L2924/00 , H01L2224/85399 , H01L2924/00012
摘要： An inexpensive small-sized PLL (phase-locked loop) oscillator for use as the clock source of a computer, etc., which can output such a high frequency about 40 MHz that is difficult to obtain from a fundamental-based crystal oscillator. The oscillator operates as stably as the fundamental-based crystal oscillator does, is easy to set a frequency, can be produced in a short lead time, and can be easily handled like the conventional crystal oscillator. The PLL oscillator is housed in a package, which contains a piezoelectric vibrator, an oscillation circuit for driving the vibrator, and a PLL circuit which receives a reference signal from the oscillation circuit. The output frequency of the PLL oscillator is determined by the oscillation frequency of the oscillation circuit and the scaling factor of the programmable divider of the PLL circuit so that a prescribed output frequency can be obtained by selecting the corresponding scaling factor, which may be stored in a programmable read-only memory.
摘要翻译：用作计算机时钟源的便宜的小型PLL（锁相环）振荡器等，其可以输出难以从基于基准的晶体振荡器获得的大约40MHz的高频。振荡器的工作方式与基于基准的晶体振荡器一样稳定，易于设定频率，可以在短的提前期内产生，并且可以像常规的晶体振荡器那样容易地处理。 PLL振荡器容纳在包含压电振动器，用于驱动振动器的振荡电路和从振荡电路接收参考信号的PLL电路的封装中。 PLL振荡器的输出频率由振荡电路的振荡频率和PLL电路的可编程分频器的缩放因子决定，使得可以通过选择相应的缩放因子来获得规定的输出频率，该比例因子可以存储在一个可编程只读存储器。

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