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1. 发明专利

DE69415484D1 未知
公开(公告)号：DE69415484D1
公开(公告)日：1999-02-04
申请号：DE69415484
申请日：1994-06-06
申请人： SEIKO EPSON CORP
发明人： AMAKO JUN , MURAI MASAMI , OTA TSUTOMU , SONEHARA TOMIO
IPC分类号： B23K26/00 , B23K26/064 , B23K26/067 , B23K26/40 , G02F1/1343 , B23K26/06

2. 发明专利

DE69222113D1 未知
公开(公告)号：DE69222113D1
公开(公告)日：1997-10-16
申请号：DE69222113
申请日：1992-05-20
申请人： SEIKO EPSON CORP
发明人： AMAKO JUN , MIURA HIROTUNA , SONEHARA TOMIO
IPC分类号： B23K26/06 , G02F1/13 , G03H1/22 , G03H1/32 , G03H1/08 , G02B27/46
摘要： An optical device which can inscribe a pattern not only to a flat surface but also to a curve surface by using a liquid crystal spatial optical modulator, and which has high optical utilization efficiency; an optical device which can form a cube having a curve surface by using a liquid crystal spacial optical modulator, and which has high optical utilization efficiency; and an optical machining system having high versatility by mounting these optical devices on a robot. The optical device includes at least a coherent light source, a liquid crystal spatial modulator for controlling a wave plane of light from the coherent light source, and means for recording a complex amplitude distribution to the liquid crystal spatial optical modulator.

3. 发明专利

DE68928858T2 未知
公开(公告)号：DE68928858T2
公开(公告)日：1999-04-22
申请号：DE68928858
申请日：1989-09-05
申请人： SEIKO EPSON CORP
发明人： SONEHARA TOMIO
IPC分类号： G02B5/20 , G02B5/30 , G02B27/14 , G02B27/28 , G03B21/00 , G02B5/28 , H04N9/31
摘要： An optical element has a dichroic layer (102, 103) on one surface thereof for wavelength selection of reflected light and transmitted light. The wavelength selection properties of the dichroic layer are polarisation dependent, and the transition region for the wavelength selection for P-polarised light and the transition region for the wavelength selection for S-polarised light both lie within the visible spectrum from 400 nm to 700 nm and do not overlap.

4. 发明专利

DE69222113T2 未知
公开(公告)号：DE69222113T2
公开(公告)日：1998-02-05
申请号：DE69222113
申请日：1992-05-20
申请人： SEIKO EPSON CORP
发明人： AMAKO JUN , MIURA HIROTUNA , SONEHARA TOMIO
IPC分类号： B23K26/06 , G02F1/13 , G03H1/22 , G03H1/32 , G03H1/08 , G02B27/46
摘要： An optical device which can inscribe a pattern not only to a flat surface but also to a curve surface by using a liquid crystal spatial optical modulator, and which has high optical utilization efficiency; an optical device which can form a cube having a curve surface by using a liquid crystal spacial optical modulator, and which has high optical utilization efficiency; and an optical machining system having high versatility by mounting these optical devices on a robot. The optical device includes at least a coherent light source, a liquid crystal spatial modulator for controlling a wave plane of light from the coherent light source, and means for recording a complex amplitude distribution to the liquid crystal spatial optical modulator.

5. 发明专利

DE69128103D1 未知
公开(公告)号：DE69128103D1
公开(公告)日：1997-12-11
申请号：DE69128103
申请日：1991-04-03
申请人： SEIKO EPSON CORP
发明人： AMAKO JUN , SONEHARA TOMIO , MIURA HIROTSUNA , WATANABE YOSHIO
IPC分类号： B29C67/00 , G02B5/32 , G02F1/1347 , G02F1/135 , G03H1/08 , G03H1/12 , G02F1/29
摘要： An optical apparatus for controlling a wave front of a coherent light includes at least a coherent light source (104), an electrically addressable liquid crystal device (106) having a plurality of pixels, and a signal generator (101-103) for recording a complex amplitude distribution on said liquid crystal device.

6. 发明专利

DE68927634D1 未知
公开(公告)号：DE68927634D1
公开(公告)日：1997-02-20
申请号：DE68927634
申请日：1989-07-14
申请人： SEIKO EPSON CORP
发明人： SONEHARA TOMIO , ITO CHIHARU
IPC分类号： G02F1/139 , G02F1/133 , G02F1/135 , G02F1/137
摘要： PCT No. PCT/JP89/00707 Sec. 371 Date Aug. 1, 1990 Sec. 102(e) Date Aug. 1, 1990 PCT Filed Jul. 14, 1989 PCT Pub. No. WO90/00756 PCT Pub. Date Jan. 25, 1990.In a reflection type liquid crystal electrooptical device having a twisted nematic liquid crystal sandwiched between two substrates faced to each other, a linearly polarized incident light enters into the liquid crystal layer and after the reflection in the state of a circularly polarized light, enters into the liquid crystal layer again. As to an outgoing light, twisted angle, DELTA nd and polarized incident angle are fixed so as to rotate the polarized surface at 90 DEG with respect to that of the incident light (the condition of twist angle of 63 DEG , 0.33 lambda

7. 发明专利

HK1015179A1 Optical element and system 未知
公开(公告)号：HK1015179A1
公开(公告)日：1999-10-08
申请号：HK98115933
申请日：1998-12-28
申请人： SEIKO EPSON CORP
发明人： SONEHARA TOMIO
IPC分类号： G02B5/20 , G02B5/30 , G02B27/14 , G02B27/28 , G03B21/00 , G02B , H04N
摘要： An optical element has a dichroic layer (102, 103) on one surface thereof for wavelength selection of reflected light and transmitted light. The wavelength selection properties of the dichroic layer are polarisation dependent, and the transition region for the wavelength selection for P-polarised light and the transition region for the wavelength selection for S-polarised light both lie within the visible spectrum from 400 nm to 700 nm and do not overlap.

8. 发明专利

DE69415484T2 未知
公开(公告)号：DE69415484T2
公开(公告)日：1999-06-24
申请号：DE69415484
申请日：1994-06-06
申请人： SEIKO EPSON CORP
发明人： AMAKO JUN , MURAI MASAMI , OTA TSUTOMU , SONEHARA TOMIO
IPC分类号： B23K26/00 , B23K26/064 , B23K26/067 , B23K26/40 , G02F1/1343 , B23K26/06

9. 发明专利

DE68928858D1 未知
公开(公告)号：DE68928858D1
公开(公告)日：1999-01-07
申请号：DE68928858
申请日：1989-09-05
申请人： SEIKO EPSON CORP
发明人： SONEHARA TOMIO
IPC分类号： G02B5/20 , G02B5/30 , G02B27/14 , G02B27/28 , G03B21/00 , G02B5/28 , H04N9/31
摘要： An optical element has a dichroic layer (102, 103) on one surface thereof for wavelength selection of reflected light and transmitted light. The wavelength selection properties of the dichroic layer are polarisation dependent, and the transition region for the wavelength selection for P-polarised light and the transition region for the wavelength selection for S-polarised light both lie within the visible spectrum from 400 nm to 700 nm and do not overlap.

10. 发明专利

DE69129914D1 未知
公开(公告)号：DE69129914D1
公开(公告)日：1998-09-10
申请号：DE69129914
申请日：1991-01-23
申请人： SEIKO EPSON CORP
发明人： SONEHARA TOMIO , KOBAYASHI HIDEKAZU
IPC分类号： G02B26/10 , B41J2/465 , G02B26/12 , G02F1/133 , G02F1/135 , B41J2/445 , B41J2/525
摘要： Described are an image forming device and a two-dimensional optical scanning device. The image forming device comprises an electro-optic effect light valve (120) including a photoconductive material (102) and an electro-optic medium (101), means (106) for applying a recording electric field to said light valve, means (105) for inputting an image to said photoconductive material, and means for reading out an image from said light valve, and is characterized in that in said light valve (120) the electro-optic medium (101) undergoes a state-transition in response to a photoelectric conversion action of said photoconductive material (102). A preferred image input means is a two-dimensional optical scanning device, comprising a light beam generating means, a rotating polygon-mirror deflector for effecting deflective scanning of light beams output by said light beam generating means, a condensing optical means for focusing the light beams on a scanned plane to form an image, and a movable mirror linearly movable within a specified plane for reflecting the light beams deflected by said rotating polygon-mirror deflector into a direction at a given angle, wherein a scanning length lp, the length of stroke ls of said linear movable mirror, an angle ( alpha /2) formed between said movable mirror and the specified plane, and an angle beta formed between said scanned plane and the specified plane satisfy the following two formulae: lp/sind alpha = ls/sind beta alpha +2 beta = pi .

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