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11. 发明专利

DE69842032D1 OBERFLÄCHENEMITTIERENDER HALBLEITERLASER 未知
公开(公告)号：DE69842032D1
公开(公告)日：2011-01-20
申请号：DE69842032
申请日：1998-07-23
申请人： SEIKO EPSON CORP
发明人： KAWASE TAKEO , KANEKO TAKEO
IPC分类号： G11B7/125 , H01S5/183 , H01S5/00 , H01S5/06 , H01S5/062 , H01S5/10 , H01S5/32 , H01S5/34

12. 发明专利

DE60041575D1 未知
公开(公告)号：DE60041575D1
公开(公告)日：2009-04-02
申请号：DE60041575
申请日：2000-10-24
申请人： SEIKO EPSON CORP
发明人： KOYAMA TOMOKO , KANEKO TAKEO
IPC分类号： H05B33/00 , H05B33/02 , G02B6/122 , G02B6/42 , H01L51/50 , H01S5/10 , H01S5/183 , H05B33/14 , H05B33/22 , H05B33/24
摘要： A light-emitting device (1000) includes a light-emitting device section (100) and a waveguide section (200) which transmits light from the light-emitting device section, and the light-emitting device section and the waveguide section are integrally formed on a substrate (10). The light-emitting device section (100) has a transparent anode (20) which form up a light-propagation section and an optical section (12) formed in part of the anode (20) which are formed on the substrate (10), a first dielectric multilayer film (11a), an insulation layer (16) having an opening (16a) facing the optical section (12), a light-emitting layer (14), at least part of which is formed in the opening (16a) of the insulation layer (16), a cathode (22), and a second dielectric multilayer film (11b). The optical section (12) forms a one-dimensional photonic band gap and has a defect section which is set so that the energy level caused by defects is within a specific emission spectrum. The light-emitting device can emit light excelling in wavelength selectivity and having directivity, and can be applied not only to displays but also to optical communications and the like.

13. 发明专利

DE69622943D1 未知
公开(公告)号：DE69622943D1
公开(公告)日：2002-09-19
申请号：DE69622943
申请日：1996-07-16
申请人： SEIKO EPSON CORP
发明人： KONDO TAKAYUKI , MORI KATSUMI , KANEKO TAKEO
IPC分类号： C23C14/24 , C30B25/16 , G01B11/06 , H01L21/20 , H01L21/205 , H01L21/66 , H01S5/00 , H01S5/183
摘要： An optical film thickness measurement method and film formation method uses a method of measuring the optical thickness of films by radiating a monitor light beam towards a substrate during the formation of a stack of films on the substrate and measuring the optical film thickness from extreme values in the resultant reflection intensity. This stack of films comprises a first film having a reflectance of at least 98% within a predetermined wavelength range and a second film formed on the first film and having an absorption coefficient of 1000 cm<>

14. 发明专利

DE69515615D1 未知
公开(公告)号：DE69515615D1
公开(公告)日：2000-04-20
申请号：DE69515615
申请日：1995-12-13
申请人： SEIKO EPSON CORP
发明人： YOKOYAMA OSAMU , KANEKO TAKEO
IPC分类号： G01S7/48 , G01S7/481 , G01S7/484 , G01S17/02 , G01S17/93
摘要： A light-sensing device comprises a light source consisting of a semiconductor laser (100), a light-transmitting optical system having a lens surface (12) and a diffraction grating surface (14) arranged on the optical axis of light emitted from this light source, and a light-receiving detection system (20) that detects any of the emitted light that is reflected from an object to be inspected. This emitted light is diffracted in at least two intersecting directions by the diffraction grating surface.

15. 发明专利

DE69600713D1 未知
公开(公告)号：DE69600713D1
公开(公告)日：1998-11-05
申请号：DE69600713
申请日：1996-07-10
申请人： SEIKO EPSON CORP
发明人： MORI KATSUMI , KONDO TAKAYUKI , KANEKO TAKEO
IPC分类号： H01L31/10 , G01D5/26 , G01L9/00 , G11B7/095 , G11B7/12 , G11B7/123 , G11B7/125 , G11B7/126 , H01L27/15 , H01L31/12 , H01S5/00 , H01S5/026 , H01S5/183 , H01S3/025 , G02B6/08
摘要： A surface emission type semiconductor laser having an optical detector which can satisfactorily assure both the laser emission characteristics of the photoemitter and the optical-to-electrical conversion efficiency. The laser comprises a first conducting semiconductor layer and a second conducting semiconductor layer formed on first and second regions of a semiconductor substrate. Over the second conducting semiconductor layer on the first region is formed an optical resonator which emits light perpendicular to the plane of the semiconductor substrate. On the second region, at least one photodiode is formed by the first and second conducting semiconductor layers. On the first region the second conducting semiconductor layer is formed with a thickness of at least 1 mu m, and is used as a lower electrode for supplying a current to the optical resonator. On the second region, the second conducting semiconductor layer forming the at least one photodiode is formed with a thickness of less than 1 mu m after etching . The device can be used in a pressure sensor or in a position or displacement sensor.

16. 发明专利

DE69738972D1 未知
公开(公告)号：DE69738972D1
公开(公告)日：2008-10-23
申请号：DE69738972
申请日：1997-07-02
申请人： SEIKO EPSON CORP
发明人： KANEKO TAKEO , YOKOYAMA OSAMU , NEBASHI SATOSHI , SHIMODA TATSUYA
IPC分类号： G02F1/13 , G09G3/36 , G02F1/1335 , G02F1/13357 , G09F9/35 , H01L33/08 , H01L33/38 , H01L33/58 , H01L33/60 , H01S3/00 , H01S5/00
摘要： A liquid crystal display device has a light source and includes a two-dimensional light-emitting element array plate formed of a plurality of light-emitting elements arranged in a plane array, and a liquid crystal panel having a plurality of pixels. Each of the pixels corresponds to each of the light-emitting elements. A light-projecting portion of each of the light-emitting elements is disposed within a light-transmitting region of the corresponding pixel.

17. 发明专利

DE69829552T2 未知
公开(公告)号：DE69829552T2
公开(公告)日：2006-02-16
申请号：DE69829552
申请日：1998-10-05
申请人： SEIKO EPSON CORP
发明人： KANEKO TAKEO
IPC分类号： H01S5/00 , H01S5/042 , H01S5/183 , H01S5/40 , H01S5/42
摘要： The present invention provides a surface-emitting laser wherein the transverse modes are controlled and phase-synchronized laser beams are emitted from a plurality of light-emitting portions to produce what appears to be a single laser beam, and a method of fabrication thereof. This laser comprises a columnar portion (20) forming part of a reflective mirror on a light-emitting side, an embedding layer (22) surrounding the periphery of the columnar portion (20), an upper electrode (23) formed on the columnar portion (20) and the embedding layer (22), and an insulating layer (18) formed below the columnar portion (20) and the embedding layer (22). A plurality of aperture portions (23a) are formed in the upper electrode (23) above the columnar portion (20), and aperture portions (18a) are formed in the insulation layer (18) at positions corresponding to the aperture portions (23a). The absolute refractive index of the embedding layer (22) is slightly smaller than that of the columnar portion (20), so that the transverse modes are controlled thereby.

18. 发明专利

DE69724541T2 未知
公开(公告)号：DE69724541T2
公开(公告)日：2004-07-29
申请号：DE69724541
申请日：1997-03-10
申请人： SEIKO EPSON CORP
发明人： KITAMURA SHOJIRO , MORI KATSUMI , KONDO TAKAYUKI , KANEKO TAKEO , ARIMURA TOSHIO
IPC分类号： G11B7/00 , G11B7/0037 , G11B7/12 , G11B7/125 , G11B7/135
摘要： An optical pickup is capable of projecting laser beams having different polarization directions or different divergence angles from laser sources formed in a surface emitting laser array and varying the effective numerical aperture of an optical system provided with an objective lens and the like. The optical pickup has a high-degree compatibility with both a CD-standards optical disk having a low recording density and a large thickness and a DVD-standards optical disk having a high recording density and a small thickness. Furthermore, a plurality of laser sources can be formed in a compact space by adopting the surface emitting laser array, and the numerical aperture of the optical system can be controlled by making a selection of laser beams. Accordingly, it is possible to realize an optical pickup having compatibility by means of an extremely simple construction, and it is also possible to inexpensively provide a small-size high-performance optical pickup.

19. 发明专利

DE69724541D1 未知
公开(公告)号：DE69724541D1
公开(公告)日：2003-10-09
申请号：DE69724541
申请日：1997-03-10
申请人： SEIKO EPSON CORP
发明人： KITAMURA SHOJIRO , MORI KATSUMI , KONDO TAKAYUKI , KANEKO TAKEO , ARIMURA TOSHIO
IPC分类号： G11B7/00 , G11B7/0037 , G11B7/12 , G11B7/125 , G11B7/135
摘要： An optical pickup is capable of projecting laser beams having different polarization directions or different divergence angles from laser sources formed in a surface emitting laser array and varying the effective numerical aperture of an optical system provided with an objective lens and the like. The optical pickup has a high-degree compatibility with both a CD-standards optical disk having a low recording density and a large thickness and a DVD-standards optical disk having a high recording density and a small thickness. Furthermore, a plurality of laser sources can be formed in a compact space by adopting the surface emitting laser array, and the numerical aperture of the optical system can be controlled by making a selection of laser beams. Accordingly, it is possible to realize an optical pickup having compatibility by means of an extremely simple construction, and it is also possible to inexpensively provide a small-size high-performance optical pickup.

20. 发明专利

DE69622943T2 未知
公开(公告)号：DE69622943T2
公开(公告)日：2003-03-27
申请号：DE69622943
申请日：1996-07-16
申请人： SEIKO EPSON CORP
发明人： KONDO TAKAYUKI , MORI KATSUMI , KANEKO TAKEO
IPC分类号： C23C14/24 , C30B25/16 , G01B11/06 , H01L21/20 , H01L21/205 , H01L21/66 , H01S5/00 , H01S5/183
摘要： An optical film thickness measurement method and film formation method uses a method of measuring the optical thickness of films by radiating a monitor light beam towards a substrate during the formation of a stack of films on the substrate and measuring the optical film thickness from extreme values in the resultant reflection intensity. This stack of films comprises a first film having a reflectance of at least 98% within a predetermined wavelength range and a second film formed on the first film and having an absorption coefficient of 1000 cm<>

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