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公开(公告)号：JP2004226738A
公开(公告)日：2004-08-12
申请号：JP2003015099
申请日：2003-01-23
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： MATSUBARA TAKAYUKI , SAKATA HIDEFUMI , TAKEDA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide an illuminator whose constitution is simple to realize miniaturization and whose light utilization efficiency is high.
SOLUTION: The rod type optical device arranged between a light source and an optical modulator is equipped with an end face A on which the light from the light source is made incident, and an end face F arranged oppositely to the optical modulator and having an emitting surface B at a position opposed to the optical modulator. The side surface r1 of the rod ranging with the end face A and the end face F and an area r2 other than the emitting surface (aperture part B) on the end face F are constituted as light reflection surfaces.
COPYRIGHT: (C)2004,JPO&NCIPI-
公开(公告)号：JP2004226486A
公开(公告)日：2004-08-12
申请号：JP2003011235
申请日：2003-01-20
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： YONEKUBO MASATOSHI , TAKEDA TAKASHI , YAMAZAKI TETSURO , UCHIKAWA DAISUKE
Abstract: PROBLEM TO BE SOLVED: To provide a projector which is compact, inexpensive and yet has high performance.
SOLUTION: The laser array 31 of the projector has, on the same substrate, a plurality of light emitting elements 31a the number of which is smaller than the number of pixels in subscanning direction, and thus the characteristics of each the light emitting elements 31a are easily uniformized compared with the case where a large number of light emitting elements corresponding to the pixels are provided, the laser array 31 is consequently made comparatively inexpensive. Further, a light addressing liquid crystal 20 is scanned with addressing light AB by the use of a scanning device 40 in the main scanning direction and the subscanning direction, and thus an arbitrary image is written in at high speed by the modulation of the addressing light AB and an image write-in part is miniaturized.
COPYRIGHT: (C)2004,JPO&NCIPI-
公开(公告)号：JP2004184613A
公开(公告)日：2004-07-02
申请号：JP2002349975
申请日：2002-12-02
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： MATSUBARA TAKAYUKI , SAKATA HIDEFUMI , TAKEDA TAKASHI
IPC: G02F1/13 , G02F1/13357 , G03B21/14 , G03B21/16
Abstract: PROBLEM TO BE SOLVED: To provide a lighting device with high cooling efficiency by realizing its downsizing with a simple configuration. SOLUTION: The lighting device 1 is provided with a plurality of light sources 30R, 30G, 30B corresponding to three optical primary colors and a heat sink 10 commonly used for the plurality of light sources 30R, 30G, 30B and the heat sink 10 constructed like a flat plate is disposed on the rear surface side of a plurality of the light sources 30R, 30G, 30B. COPYRIGHT: (C)2004,JPO&NCIPI
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公开(公告)号：JP2004184611A
公开(公告)日：2004-07-02
申请号：JP2002349973
申请日：2002-12-02
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： MATSUBARA TAKAYUKI , SAKATA HIDEFUMI , TAKEDA TAKASHI
IPC: G02B5/02 , F21S2/00 , F21V5/00 , F21Y101/02 , G02B27/00 , G02B27/18 , G02F1/13 , G02F1/13357 , G03B21/00 , G03B21/14
Abstract: PROBLEM TO BE SOLVED: To provide an optical element capable of emitting incident light in a uniform illuminance distribution with a simple configuration.
SOLUTION: The optical element 1 is provided with a light guide means 2 having a light incident surface 3 and a light exit surface 4, and constituted so that a space between the light incident surface 3 and the light exit surface 4 is surrounded by light reflection surfaces 6, besides, the optical element 1 is provided with a light diffusing means 5 arranged between the light incident surface 3 and the light exit surface 4.
COPYRIGHT: (C)2004,JPO&NCIPI-
公开(公告)号：JP2004151657A
公开(公告)日：2004-05-27
申请号：JP2002319782
申请日：2002-11-01
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： TAKEDA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a projector or the like which uses a solid light emitting element as a light source and can produce a bright projected image.
SOLUTION: The projector is equipped with a light source 102 to supply light, a spatial light modulating apparatus 104 to modulate the light from the light source 102 in accordance with the image signal, and a projection lens 105 to project the light modulated by the spatial light modulating apparatus 104. The spatial light modulating apparatus 104 is a tilt mirror device. In the spatial light modulating apparatus 104, when the plane including the normal line N1 in a first reflection position and the normal line N2 in a second reflecting position of a reflecting plane 104a and including the optical axis AX of the projection lens 105 is denoted as a first plane PL1 while the plane perpendicular to the first plane PL1 and including the optical axis AX is denoted as a second plane PL2, the size P2 of the entrance pupil ENP of the projection lens 105 along the second plane PL2 is larger than the size P1 of the entrance pupil ENP of the lens in the direction along the first plane PL1.
COPYRIGHT: (C)2004,JPOAbstract translation: 要解决的问题：提供使用固体发光元件作为光源并可以产生明亮投影图像的投影仪等。
解决方案：投影仪配备有用于供应光的光源102，空间光调制装置104，以根据图像信号调制来自光源102的光;以及投影透镜105，投影光调制 空间光调制装置104是倾斜镜装置。 在空间光调制装置104中，将包含第一反射位置的法线N1的平面和包括投影透镜105的光轴AX的反射面104a的第二反射位置的法线N2表示为 在垂直于第一平面PL1并且包括光轴AX的平面的第一平面PL1被表示为第二平面PL2时，投影透镜105沿着第二平面PL2的入射光瞳ENP的尺寸P2大于尺寸 P1的入射光瞳ENP沿着第一平面PL1的方向。 版权所有（C）2004，JPO
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Patent Agency Ranking
公开(公告)号：JP2004151652A
公开(公告)日：2004-05-27
申请号：JP2002319777
申请日：2002-11-01
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： TAKEDA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a projector capable of obtaining a projected image of high contrast in the case of using a solid-state light emitting element as a light source part, and to provide an illumination device and an optical apparatus for the projector.
SOLUTION: The illumination device for a spatial light modulating device 103 for modulating incident light in accordance with an image signal, is provided with the light source part 101 constituted of several light emitting elements 101a, 101b and 101c for supplying the light. The image modulation area of the spatial light modulating device 103 is divided into several parts 103a, 103b and 103c, and one part area 103a corresponding to the light emitting element 101a among the divided areas 103a, 103b and 103c is illuminated by the light emitting element 101a.
COPYRIGHT: (C)2004,JPO-
207.发明专利
公开(公告)号：JP2003121924A
公开(公告)日：2003-04-23
申请号：JP2001311542
申请日：2001-10-09
Applicant: SEIKO EPSON CORP
Inventor： TAKEDA TAKASHI , IIZAKA HIDETO
IPC: G02F1/13 , G02F1/133 , G02F1/13357 , G03B21/00 , G03B21/14
Abstract: PROBLEM TO BE SOLVED: To provide an illuminator which obtains light of high luminance and changes the quantity of light made incident on an optical modulation means and is used for a projection type display device which has an excellent effect in respects of power of video expression and adaptability to environments for use. SOLUTION: An illuminator 1 is provided with a light source 2 having a plurality of solid-state light emitting elements 5a, 5b, 5c, and 5d and two fly eyed lenses 3 and 4 constituting an uniform illumination means. Light output intensities of solid-state light emitting elements 5a, 5b, 5c, and 5d are controlled based on video signals supplied to liquid crystal light valves 22, 23, and 24 to be able to control the quantity of light.
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公开(公告)号：JP2002071958A
公开(公告)日：2002-03-12
申请号：JP2001183976
申请日：2001-06-18
Applicant: SEIKO EPSON CORP
Inventor： TAKEDA TAKASHI , YONEKUBO MASATOSHI , TAKEKOSHI TARO
IPC: G02B5/30 , G02B5/18 , G11B7/135 , G11B11/105
Abstract: PROBLEM TO BE SOLVED: To realize a high-performance, inexpensive and thin polarization element and analyzer, to provide a small-size inexpensive magneto-optical head, able to detect magneto-optical signals with high s/n, and to realize a method for manufacturing such a polarization element, analyzer, magneto-optical head with high mass productivity. SOLUTION: A polarizing optical thin film 203 is formed on a substrate 202 having a plurality of ridges 201 and a sawtooth cross section, and the surface having the sawtooth pattern is filled with a transparent material 204. Thus, the polarizing device having high transmittance and extinction ratio almost equal to a polarizing prism and as thin as a conventional polarizing plate can be obtained at a low cost. A complex analyzer is constituted from the device and a small-size optical head is realized.
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公开(公告)号：JP2001249284A
公开(公告)日：2001-09-14
申请号：JP2000057681
申请日：2000-03-02
Applicant: SEIKO EPSON CORP
Inventor： TAKEDA TAKASHI , YONEKUBO MASATOSHI
IPC: G02B26/08
Abstract: PROBLEM TO BE SOLVED: To provide a easily mountable unit in a unit for switching evanescent light which leaks out from all reflective surfaces of a light guide. SOLUTION: The shape of a light guide 1 for guiding incident light 2 is made into a shape having a connection body 61 extended to the side of a switching device 50. This body secures easily a space for wiring a bonding pat 71. Furthermore, a compact device 50 convenient for assembling, storage, and distribution in which micro structures such as an actuator 6, an optical element 3 are protected by a cover can be realized by joining the connection body 61 after manufacturing the connection body 61 separately with a main body 60 of the light guide 1.
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210.发明专利
公开(公告)号：JP2000330041A
公开(公告)日：2000-11-30
申请号：JP14009399
申请日：1999-05-20
Applicant: SEIKO EPSON CORP
Inventor： TAKEDA TAKASHI
IPC: G02B26/08
Abstract: PROBLEM TO BE SOLVED: To provide an optical switching device high in producing yield and low in power consumption. SOLUTION: In this electrostatic actuator 40 for driving a switching part, a driving voltage Vs is applied to an intermediate electrode 53 for driving the switching part 30 to keep upper and lower electrodes 50, 56 at a fixed voltage. Thus, the adjacent upper electrodes 56 can be continued to reduce the number of supporting struts for supporting each upper electrode 56. Therefore, since the electrostatic actuator 40 can be increased in flexibility of design to increase its area efficiency, the objective electrostatic actuator 40 high in yield and low in power consumption is obtained, and the optical switching element 1 and the image display device 2 using the actuator can be obtained.
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