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公开(公告)号：DE69329945T2
公开(公告)日：2001-06-07
申请号：DE69329945
申请日：1993-07-13
Applicant: SEIKO EPSON CORP
Inventor： TAKEKOSHI TARO , YONEKUBO MASATOSHI , TAKEDA TAKASHI , ARIMURA TOSHIO
Abstract: A plurality of slant faces (1419) are formed on a substrate (1406). A polarized optical thin film is formed on the slant faces. The recess defined by the slant faces (1419) is filled with transparent material to form a small composite polarizing element. By this polarizing element, it is possible to detect magneto-optic signals excellent in transmissivity and extinction ratio and high in S/N ratio. Also, this polarizing element serves as the cover of the package (1408) of an optical head which houses a photodetecting element (1409) and a light emitting element (1411) integrally. Also, by use of an optical element having an optical path length adjustment function of varying the optical path length of the outgoing light beam from that of the incoming light beam, it is possible to eliminate the initial offset of the focal point error signals and to omit the adjustment at the same time. In this way, a small, simple and high-performance optical head used for magneto-optic recording and reproducing apparatus can be realized.
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公开(公告)号：DE69329945D1
公开(公告)日：2001-03-29
申请号：DE69329945
申请日：1993-07-13
Applicant: SEIKO EPSON CORP
Inventor： TAKEKOSHI TARO , YONEKUBO MASATOSHI , TAKEDA TAKASHI , ARIMURA TOSHIO
Abstract: A plurality of slant faces (1419) are formed on a substrate (1406). A polarized optical thin film is formed on the slant faces. The recess defined by the slant faces (1419) is filled with transparent material to form a small composite polarizing element. By this polarizing element, it is possible to detect magneto-optic signals excellent in transmissivity and extinction ratio and high in S/N ratio. Also, this polarizing element serves as the cover of the package (1408) of an optical head which houses a photodetecting element (1409) and a light emitting element (1411) integrally. Also, by use of an optical element having an optical path length adjustment function of varying the optical path length of the outgoing light beam from that of the incoming light beam, it is possible to eliminate the initial offset of the focal point error signals and to omit the adjustment at the same time. In this way, a small, simple and high-performance optical head used for magneto-optic recording and reproducing apparatus can be realized.
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公开(公告)号：EP1041036A4
公开(公告)日：2005-03-09
申请号：EP99947884
申请日：1999-10-13
Applicant: SEIKO EPSON CORP
Inventor： KAMIJIMA SHUNJI , YONEKUBO MASATOSHI , TAKEDA TAKASHI , NISHIKAWA TAKAO
CPC classification number: B81C1/00182 , B81B2201/045 , B81C2201/034 , G02B26/02
Abstract: A micromachine and a method of manufacturing the same which are suitable as or for a micromachine having a first dynamic fine structural portion constituting a driving portion, and a second static fine structural portion performing a switching function or a function of an optical element, the method comprising forming the second static fine structural portion on the first dynamic fine structural portion, or superposing the second static fine structural portion thereon and die transferring the same thereto, whereby the method enables the second fine structure to be formed without using at least a complicated step, such as a silicon process in an intermediate stage of the method, and into a complicated shape easily with a high reproducibility, and contributes to the improvement of the productivity. Especially, when a plurality of elements are arranged in an arrayed state as in a spatial light modulator, the die transfer techniques enable the second fine structure to be reproduced stably as compared with the techniques using a silicon process for forming all parts of a micromachine, whereby the subject method reduces the probability of occurrence of defects to a remarkably low level and contributes to the improvement of the yield.
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公开(公告)号：EP0608432A4
公开(公告)日：1996-04-10
申请号：EP93914992
申请日：1993-07-13
Applicant: SEIKO EPSON CORP
Inventor： TAKEKOSHI TARO , YONEKUBO MASATOSHI , TAKEDA TAKASHI , ARIMURA TOSHIO
IPC: G02B5/30 , G11B7/09 , G11B7/13 , G11B7/135 , G11B11/105
CPC classification number: G11B11/10543 , G02B5/3025 , G11B7/094 , G11B7/131 , G11B7/1353 , G11B7/1356 , G11B7/1365 , G11B7/1381 , G11B11/10532 , G11B11/10536 , G11B2007/13727
Abstract: A plurality of slant faces (1419) are formed on a substrate (1406). A polarized optical thin film is formed on the slant faces. The recess defined by the slant faces (1419) is filled with transparent material to form a small composite polarizing element. By this polarizing element, it is possible to detect magneto-optic signals excellent in transmissivity and extinction ratio and high in S/N ratio. Also, this polarizing element serves as the cover of the package (1408) of an optical head which houses a photodetecting element (1409) and a light emitting element (1411) integrally. Also, by use of an optical element having an optical path length adjustment function of varying the optical path length of the outgoing light beam from that of the incoming light beam, it is possible to eliminate the initial offset of the focal point error signals and to omit the adjustment at the same time. In this way, a small, simple and high-performance optical head used for magneto-optic recording and reproducing apparatus can be realized.
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公开(公告)号：EP3203304A4
公开(公告)日：2018-07-18
申请号：EP15846815
申请日：2015-09-17
Applicant: SEIKO EPSON CORP
Inventor： YOKOYAMA OSAMU , YONEKUBO MASATOSHI , TAKEDA TAKASHI , ISHIDA DAISUKE , IDE MITSUTAKA , SORIMACHI HIDEMITSU
IPC: G02B27/02 , F21V8/00 , G02B5/32 , G02B26/08 , G02B26/10 , G02B27/00 , G02B27/01 , G02B27/09 , H04N5/64
CPC classification number: G02B27/0172 , G02B5/32 , G02B6/0005 , G02B26/0833 , G02B26/10 , G02B26/101 , G02B27/0025 , G02B27/0031 , G02B27/0081 , G02B27/02 , G02B27/0977 , G02B2027/011 , G02B2027/015 , G02B2027/0152 , G02B2027/0174 , G02B2027/0178 , H04N5/64
Abstract: There is provided an image display device with which it is possible to visually recognize an image while securing the see-through property regardless of eye movements and changes in interpupillary distance, with which it is possible to display a large-size image with high quality, and which is small, has excellent wearability, and has an excellent external appearance. A display device 100 of the invention includes a light source optical system 15, a mirror 16 which reflects a light which is emitted from the light source optical system 15, a light scanning device 17 which scans the light which is reflected by the mirror 16, a pupil magnifying optical system 12 which magnifies a beam diameter of the light which is emitted from the light scanning device 17, a correcting optical system 13 on which the light which is emitted from the pupil magnifying optical system 12 is incident and which corrects an image which is generated at a position of an exit pupil G, and a holographic mirror 14 (a deflecting optical system) which deflects the light which is emitted from the correcting optical system 13 to guide the light to the position of the exit pupil G and transmits a portion of external light.
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Patent Agency Ranking
公开(公告)号：EP0969306A4
公开(公告)日：2003-06-25
申请号：EP98955980
申请日：1998-11-27
Applicant: SEIKO EPSON CORP
Inventor： TAKEDA TAKASHI , YONEKUBO MASATOSHI , ITO HIROKAZU , KAMIJIMA SHUNJI
CPC classification number: G09G3/3473 , G02B26/0816 , G09G2300/06 , G09G2310/06 , Y10S385/901
Abstract: A light guide part which can reflect a light totally and transfer the light, an optical switching part which has its extraction plane close to a totally reflective plane to capture an evanescent light and reflects and emits the evanescent light and a driving part which drives the optical switching part are layered in the direction of the light emission in this order to obtain an optical switching device with a hierarchical structure. By employing the hierarchical structure, the respective layers can be optimized. Especially, as the extracted light is not passed through the driving part, the driving part can be optimized to provide an optical switching device which can operate at a high velocity and with a low power consumption. Therefore, an optical switching device which shows the low loss of a light utilizing an evanescent wave, has a high response velocity and, further, shows a large contrast ratio can be provided.
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公开(公告)号：EP0969305A4
公开(公告)日：2003-06-25
申请号：EP98947784
申请日：1998-10-07
Applicant: SEIKO EPSON CORP
Inventor： TAKEDA TAKASHI , YONEKUBO MASATOSHI
CPC classification number: G02B26/02
Abstract: An image display has a light guide having a total reflecting surface which reflects guided light for image display totally transmits the light and an optical switch having a microprism which extracts the evanescent light leaking from the total reflecting surface and reflects it. Guided light is directed from two directions symmetrical with respect to a display area to produce light from the whole surface of the microprism. Therefore, an image display on which a brighter image having a higher contrast can be displayed is provided, by optimizing the vertex angle of the microprism, the directions of emitted rays of light are matched and directed vertically to the total reflecting surface, so that an image display which displays a high quality image is realized.
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公开(公告)号：JP2017116773A
公开(公告)日：2017-06-29
申请号：JP2015253152
申请日：2015-12-25
Applicant: セイコーエプソン株式会社 , Seiko Epson Corp
Inventor： TAKAGI MASAYUKI , TOTANI TAKAHIRO , TAKEDA TAKASHI , KOMATSU AKIRA , MIYAO TOSHIAKI
IPC: G02B27/02
CPC classification number: G02B27/0172 , G02B6/002 , G02B6/0045 , G02B6/10 , G02B2027/0112 , G02B2027/0118 , G02B2027/0145 , H04N9/3141
Abstract: 【課題】光学的精度を維持しつつ光学系のさらなる小型化を図り、延いては装置全体の小型化を図ることができる虚像表示装置を提供すること。【解決手段】投射レンズ30において、非線対称性を有する四角形状の開口部OPを形成する絞りSTを有することで、画像表示装置80の各点からの各光線束が、第2方向DD2についてそれぞれ異なる角度で射出されるものであっても、絞りSTにおいて適切に光の調整を行うことができ、高画質な映像が提供可能となっており、光学系をさらに小型化し、延いては装置全体を小型化することができる。【選択図】図5
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公开(公告)号：JP2015179297A
公开(公告)日：2015-10-08
申请号：JP2015134183
申请日：2015-07-03
Applicant: SEIKO EPSON CORP
Inventor： MIYAO TOSHIAKI , TAKAGI MASAYUKI , TOTANI TAKAHIRO , KOMATSU AKIRA , TAKEDA TAKASHI , SORIMACHI HIDEMITSU
Abstract: 【課題】導光板中の複数の反射面を比較的簡易に良好な反射状態で作製できる導光板の製造方法及び導光板を提供すること。【解決手段】溝形成工程において、導光板20内部に導いた光を外部へ取り出すための複数の反射面である第1及び第2の反射面23a,23bに対応する鋸歯状部DTが所定角度αとなる第1及び第2の平坦面123a,123bにより樹脂基材50に形成される。さらに、反射面形成工程において、鋸歯状部DTに斜方蒸着により反射面となる反射膜MBを所望の膜厚で形成できる。また、反射面埋込工程において、反射膜MBを樹脂基材50と同一の屈折率を有する樹脂材料51で導光板20内部に埋め込むことによって反射膜MBを保護できる。【選択図】図5
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公开(公告)号：JP2014174429A
公开(公告)日：2014-09-22
申请号：JP2013048837
申请日：2013-03-12
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： TAKAGI MASAYUKI , TOTANI TAKAHIRO , TAKEDA TAKASHI , KOMATSU AKIRA , MIYAO TOSHIAKI
CPC classification number: H04N13/0497 , G02B27/0172 , G02B2027/0118 , G02B2027/0123 , G02B2027/0178 , G02F1/133504 , G02F1/133512 , G02F1/133526 , G02F2001/133565 , H04N13/0422 , H04N13/044 , H04N2213/001
Abstract: PROBLEM TO BE SOLVED: To provide a virtual image display device which allows for viewing good brightness-adjusted images, reducing fatigue given to a viewer thereby.SOLUTION: An image display device 80 has light distribution characteristics having a wider light distribution angle in a horizontal direction, corresponding to a traverse direction parallel to a direction in which eyes of a viewer are aligned, than in a vertical direction corresponding to a longitudinal direction perpendicular to the direction in which eyes of a viewer are aligned, and thus has a wider light distribution angle in the horizontal direction, which allows for suppressing luminance difference that can appear depending on the exit angle of image light in the horizontal direction. Such an arrangement allows for viewing good brightness-adjusted images, reducing fatigue given to a viewer thereby.
Abstract translation: 要解决的问题：提供一种虚拟图像显示装置，其允许观看良好的亮度调节图像，从而减少给予观看者的疲劳。解决方案：图像显示装置80具有在水平方向上具有更宽的光分布角的光分布特性 方向，对应于与观察者的眼睛对准的方向平行的横动方向，与沿垂直于观察者的眼睛的方向对准的纵向方向的垂直方向相比，具有更宽的光分布 水平方向的角度，这允许抑制根据图像光在水平方向上的出射角可能出现的亮度差异。 这样的布置允许观看良好的亮度调节图像，从而减少给予观看者的疲劳。
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