HK75496A - Illumination system for an lcd display system - Google Patents
Illumination system for an lcd display systemInfo
- Publication number
- HK75496A HK75496A HK75496A HK75496A HK75496A HK 75496 A HK75496 A HK 75496A HK 75496 A HK75496 A HK 75496A HK 75496 A HK75496 A HK 75496A HK 75496 A HK75496 A HK 75496A
- Authority
- HK
- Hong Kong
- Prior art keywords
- lcd display
- illumination
- display system
- illumination system
- lcd
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3167—Modulator illumination systems for polarizing the light beam
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/133536—Reflective polarizers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/13355—Polarising beam splitters [PBS]
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/290,471 US4913529A (en) | 1988-12-27 | 1988-12-27 | Illumination system for an LCD display system |
Publications (1)
Publication Number | Publication Date |
---|---|
HK75496A true HK75496A (en) | 1996-05-10 |
Family
ID=23116147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK75496A HK75496A (en) | 1988-12-27 | 1996-05-02 | Illumination system for an lcd display system |
Country Status (7)
Country | Link |
---|---|
US (1) | US4913529A (ko) |
EP (1) | EP0376395B1 (ko) |
JP (1) | JP2747349B2 (ko) |
KR (1) | KR0152982B1 (ko) |
CN (1) | CN1020133C (ko) |
DE (1) | DE68916398T2 (ko) |
HK (1) | HK75496A (ko) |
Families Citing this family (89)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5300942A (en) * | 1987-12-31 | 1994-04-05 | Projectavision Incorporated | High efficiency light valve projection system with decreased perception of spaces between pixels and/or hines |
US5042921A (en) * | 1988-10-25 | 1991-08-27 | Casio Computer Co., Ltd. | Liquid crystal display apparatus |
JPH02153336A (ja) * | 1988-12-05 | 1990-06-13 | Sharp Corp | 投影型液晶表示装置 |
US5082354A (en) * | 1989-08-29 | 1992-01-21 | Kaiser Aerospace And Electronics Corporation | Optical switch and color selection assembly |
DE69030038T2 (de) * | 1989-08-31 | 1997-06-12 | Asahi Glass Co Ltd | Flüssigkristallfarbprojektionsanzeigevorrichtung |
JP2893599B2 (ja) * | 1989-10-05 | 1999-05-24 | セイコーエプソン株式会社 | 偏光光源及び投写型表示装置 |
US5212471A (en) * | 1989-10-27 | 1993-05-18 | Hughes Aircraft Company | Polarized heads up display |
EP0434041B1 (en) * | 1989-12-20 | 1996-09-11 | Canon Kabushiki Kaisha | Polarized illuminating device |
JPH04230705A (ja) * | 1990-05-18 | 1992-08-19 | Canon Inc | 偏光変換装置、該偏光変換装置を備えた偏光照明装置および該偏光照明装置を有する投写型表示装置 |
SG43161A1 (en) * | 1990-07-24 | 1997-10-17 | Thomson Brandt Gmbh | Polarized light lighting device |
US5570209A (en) * | 1990-09-18 | 1996-10-29 | Mitsubishi Denki Kabushiki Kaisha | Color projection type display apparatus having three liquid crystal displays of same structure |
FR2669127B1 (fr) * | 1990-11-09 | 1993-01-22 | Thomson Csf | Projecteur d'images a deux faisceaux polarises par ecran matriciel. |
FR2669440B1 (fr) * | 1990-11-21 | 1994-08-26 | Sextant Avionique | Dispositif de visualisation en couleur par projection mettant en óoeuvre des valves optiques. |
DE69126406T2 (de) * | 1990-11-27 | 1997-09-18 | Asahi Glass Co Ltd | Projektionsanzeigevorrichtung mit Blende |
JP2575558Y2 (ja) * | 1990-12-26 | 1998-07-02 | エルジー電子株式会社 | 液晶投写形ディスプレイの光学系構造 |
JP2517835Y2 (ja) * | 1991-02-08 | 1996-11-20 | 矢崎総業株式会社 | 車両用表示装置 |
US5111315A (en) * | 1991-02-14 | 1992-05-05 | Hughes Aircraft Company | Optical system for illuminating a light valve |
JPH06508449A (ja) * | 1991-06-13 | 1994-09-22 | ミネソタ・マイニング・アンド・マニュファクチュアリング・カンパニー | 再帰反射偏光子 |
FR2680016B1 (fr) * | 1991-07-30 | 1994-08-26 | Thomson Csf | Visuel grand champ collimate a miroir spherique ou elliptique, en particulier pour simulateur. |
FR2680882B1 (fr) * | 1991-08-06 | 1993-10-29 | Thomson Csf | Projecteur d'images a efficacite lumineuse orptimisee. |
US5301030A (en) * | 1991-08-13 | 1994-04-05 | Samsung Electronics Co., Ltd. | Optical illumination apparatus for a display unit with efficient light source polarization |
FR2685500B1 (fr) * | 1991-12-20 | 1994-12-23 | Thomson Csf | Separateur optique de polarisations et application a un systeme de visualisation. |
JPH05241103A (ja) * | 1992-02-21 | 1993-09-21 | Nec Corp | 投射型液晶表示装置 |
US5422756A (en) * | 1992-05-18 | 1995-06-06 | Minnesota Mining And Manufacturing Company | Backlighting system using a retroreflecting polarizer |
US5347433A (en) * | 1992-06-11 | 1994-09-13 | Sedlmayr Steven R | Collimated beam of light and systems and methods for implementation thereof |
US5903388A (en) | 1992-06-11 | 1999-05-11 | Sedlmayr Steven R | High efficiency electromagnetic beam projector and systems and method for implementation thereof |
JP3380913B2 (ja) * | 1992-06-11 | 2003-02-24 | ソニー株式会社 | 固体撮像装置 |
JP3362900B2 (ja) * | 1993-03-09 | 2003-01-07 | 富士通株式会社 | 面発光装置 |
US5428469A (en) * | 1993-11-16 | 1995-06-27 | Minnesota Mining And Manufacturing Company | Liquid crystal display projection systems employing polarizing beam splitters and passing light through display cell from both directions |
JPH07294850A (ja) * | 1994-04-22 | 1995-11-10 | Canon Inc | 照明装置及びそれを用いた投影装置 |
US5823662A (en) * | 1994-08-25 | 1998-10-20 | Lightware, Inc. | High efficiency illumination system |
US5716122A (en) * | 1994-08-25 | 1998-02-10 | Nikon Corporation | Optical apparatus using polarizing beam splitter |
US5579134A (en) * | 1994-11-30 | 1996-11-26 | Honeywell Inc. | Prismatic refracting optical array for liquid flat panel crystal display backlight |
EP1063554B1 (en) * | 1994-12-28 | 2004-03-03 | Seiko Epson Corporation | Polarization luminaire and projector using it |
JP3641291B2 (ja) * | 1995-03-09 | 2005-04-20 | ペンタックス株式会社 | 偏光変換素子およびその使用方法 |
US5757547A (en) * | 1995-04-24 | 1998-05-26 | Polycom, Inc. | High efficiency homogeneous polarization converter |
JPH0950000A (ja) * | 1995-06-02 | 1997-02-18 | Matsushita Electric Ind Co Ltd | 偏光方向変換照明装置および投写型画像表示装置 |
US5995284A (en) * | 1996-03-29 | 1999-11-30 | 3M Innovative Properties Company | Polarized illumination system for LCD projector |
JPH1078511A (ja) * | 1996-09-04 | 1998-03-24 | Hitachi Ltd | 偏光分離器、偏光変換素子およびそれを用いた液晶表示装置 |
JP3444521B2 (ja) * | 1997-06-20 | 2003-09-08 | シャープ株式会社 | 投影型画像表示装置 |
US6108131A (en) * | 1998-05-14 | 2000-08-22 | Moxtek | Polarizer apparatus for producing a generally polarized beam of light |
US6208463B1 (en) | 1998-05-14 | 2001-03-27 | Moxtek | Polarizer apparatus for producing a generally polarized beam of light |
EP1029198A4 (en) | 1998-06-08 | 2000-12-27 | Karlheinz Strobl | EFFICIENT LIGHTING SYSTEMS, COMPONENT AND MANUFACTURING PROCESS |
US6122103A (en) * | 1999-06-22 | 2000-09-19 | Moxtech | Broadband wire grid polarizer for the visible spectrum |
US6288840B1 (en) | 1999-06-22 | 2001-09-11 | Moxtek | Imbedded wire grid polarizer for the visible spectrum |
US7306338B2 (en) * | 1999-07-28 | 2007-12-11 | Moxtek, Inc | Image projection system with a polarizing beam splitter |
US6447120B2 (en) | 1999-07-28 | 2002-09-10 | Moxtex | Image projection system with a polarizing beam splitter |
US6234634B1 (en) | 1999-07-28 | 2001-05-22 | Moxtek | Image projection system with a polarizing beam splitter |
US6666556B2 (en) | 1999-07-28 | 2003-12-23 | Moxtek, Inc | Image projection system with a polarizing beam splitter |
US6243199B1 (en) | 1999-09-07 | 2001-06-05 | Moxtek | Broad band wire grid polarizing beam splitter for use in the visible wavelength region |
IL132928A0 (en) * | 1999-11-14 | 2001-03-19 | Unic View Ltd | Thermally stable birefringent prism assembly |
US7375887B2 (en) | 2001-03-27 | 2008-05-20 | Moxtek, Inc. | Method and apparatus for correcting a visible light beam using a wire-grid polarizer |
JP2003029211A (ja) * | 2001-07-19 | 2003-01-29 | Canon Inc | 投射型画像表示装置 |
CN1571904A (zh) * | 2001-10-19 | 2005-01-26 | 3M创新有限公司 | 偏振转换的发光*** |
US7061561B2 (en) * | 2002-01-07 | 2006-06-13 | Moxtek, Inc. | System for creating a patterned polarization compensator |
US6909473B2 (en) * | 2002-01-07 | 2005-06-21 | Eastman Kodak Company | Display apparatus and method |
US6785050B2 (en) | 2002-05-09 | 2004-08-31 | Moxtek, Inc. | Corrosion resistant wire-grid polarizer and method of fabrication |
US20040212883A1 (en) * | 2002-08-15 | 2004-10-28 | Agere Systems Inc. | Planar polarization beam combiner/splitter |
US7113335B2 (en) * | 2002-12-30 | 2006-09-26 | Sales Tasso R | Grid polarizer with suppressed reflectivity |
TW594053B (en) * | 2003-03-25 | 2004-06-21 | Delta Electronics Inc | Image projection apparatus and its optical polarization module |
JP4556486B2 (ja) * | 2004-05-19 | 2010-10-06 | セイコーエプソン株式会社 | 偏光子及びプロジェクタ |
DE102004029056A1 (de) | 2004-06-16 | 2006-01-12 | Carl Zeiss | Variable Blende, Beleuchtungseinrichtung, optische Beobachtungseinrichtung sowie optisches Beobachtungsgerät |
US20080055549A1 (en) * | 2006-08-31 | 2008-03-06 | Perkins Raymond T | Projection Display with an Inorganic, Dielectric Grid Polarizer |
US20080055720A1 (en) * | 2006-08-31 | 2008-03-06 | Perkins Raymond T | Optical Data Storage System with an Inorganic, Dielectric Grid Polarizer |
US7961393B2 (en) | 2004-12-06 | 2011-06-14 | Moxtek, Inc. | Selectively absorptive wire-grid polarizer |
US7630133B2 (en) * | 2004-12-06 | 2009-12-08 | Moxtek, Inc. | Inorganic, dielectric, grid polarizer and non-zero order diffraction grating |
US20080055722A1 (en) * | 2006-08-31 | 2008-03-06 | Perkins Raymond T | Optical Polarization Beam Combiner/Splitter with an Inorganic, Dielectric Grid Polarizer |
US7800823B2 (en) * | 2004-12-06 | 2010-09-21 | Moxtek, Inc. | Polarization device to polarize and further control light |
US20080055721A1 (en) * | 2006-08-31 | 2008-03-06 | Perkins Raymond T | Light Recycling System with an Inorganic, Dielectric Grid Polarizer |
US7570424B2 (en) * | 2004-12-06 | 2009-08-04 | Moxtek, Inc. | Multilayer wire-grid polarizer |
CN100445801C (zh) * | 2006-01-18 | 2008-12-24 | 台达电子工业股份有限公司 | 用于光学设备的光线耦合装置 |
US20070297052A1 (en) * | 2006-06-26 | 2007-12-27 | Bin Wang | Cube wire-grid polarizing beam splitter |
US20070296921A1 (en) * | 2006-06-26 | 2007-12-27 | Bin Wang | Projection display with a cube wire-grid polarizing beam splitter |
US8755113B2 (en) * | 2006-08-31 | 2014-06-17 | Moxtek, Inc. | Durable, inorganic, absorptive, ultra-violet, grid polarizer |
US7789515B2 (en) * | 2007-05-17 | 2010-09-07 | Moxtek, Inc. | Projection device with a folded optical path and wire-grid polarizer |
US20080316599A1 (en) * | 2007-06-22 | 2008-12-25 | Bin Wang | Reflection-Repressed Wire-Grid Polarizer |
US8467128B2 (en) * | 2008-11-19 | 2013-06-18 | Shanghai Lexvu Opto Microelectronics Technology Co., Ltd. | Polarizing cube and method of fabricating the same |
US8248696B2 (en) | 2009-06-25 | 2012-08-21 | Moxtek, Inc. | Nano fractal diffuser |
CN102792210B (zh) * | 2009-10-01 | 2015-12-16 | ***光谱***有限公司 | 用于改善色散摄谱仪的光谱分辨率的分光器 |
JP5839620B2 (ja) | 2010-09-14 | 2016-01-06 | コーニング インコーポレイテッド | 家電製品フェーシア及びその取付け |
US8611007B2 (en) | 2010-09-21 | 2013-12-17 | Moxtek, Inc. | Fine pitch wire grid polarizer |
US8913321B2 (en) | 2010-09-21 | 2014-12-16 | Moxtek, Inc. | Fine pitch grid polarizer |
US8913320B2 (en) | 2011-05-17 | 2014-12-16 | Moxtek, Inc. | Wire grid polarizer with bordered sections |
US8873144B2 (en) | 2011-05-17 | 2014-10-28 | Moxtek, Inc. | Wire grid polarizer with multiple functionality sections |
US8922890B2 (en) | 2012-03-21 | 2014-12-30 | Moxtek, Inc. | Polarizer edge rib modification |
US9188723B2 (en) | 2013-03-14 | 2015-11-17 | Ppg Industries Ohio, Inc. | Patterns on glass for increased light transmission and/or light trapping |
US9354374B2 (en) | 2013-10-24 | 2016-05-31 | Moxtek, Inc. | Polarizer with wire pair over rib |
CN107111146B (zh) | 2015-01-21 | 2020-05-26 | ***光谱***有限公司 | 混合图像-光瞳光学重定格式器 |
EP3505995A4 (en) * | 2016-10-13 | 2019-11-06 | LG Chem, Ltd. | OPTICAL INSULATING DEVICE |
Family Cites Families (18)
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US3522985A (en) * | 1965-10-23 | 1970-08-04 | Polaroid Corp | High-transmission light polarizer |
GB1194226A (en) * | 1966-10-17 | 1970-06-10 | Texas Instruments Inc | Information Display Method and System. |
US3692385A (en) * | 1970-06-01 | 1972-09-19 | John George Gievers | Rotation sensitive retarder system |
US3704997A (en) * | 1971-05-19 | 1972-12-05 | American Optical Corp | Variable amplitude polarizing beam splitter |
US4127322A (en) * | 1975-12-05 | 1978-11-28 | Hughes Aircraft Company | High brightness full color image light valve projection system |
US4127332A (en) * | 1976-11-19 | 1978-11-28 | Daedalean Associates, Inc. | Homogenizing method and apparatus |
JPS6118481Y2 (ko) * | 1980-05-09 | 1986-06-05 | ||
US4345258A (en) * | 1980-12-15 | 1982-08-17 | The Singer Company | Color display system |
JPS59127019A (ja) * | 1983-01-11 | 1984-07-21 | Canon Inc | プリンタヘツド |
JPH0627907B2 (ja) * | 1983-02-16 | 1994-04-13 | 株式会社日立製作所 | 光学的情報処理装置 |
JPH061303B2 (ja) * | 1984-11-20 | 1994-01-05 | ソニー株式会社 | 偏光照明装置 |
JPS62295025A (ja) * | 1986-06-16 | 1987-12-22 | Seiko Epson Corp | 投射型表示装置 |
JPH0792561B2 (ja) * | 1986-07-08 | 1995-10-09 | 株式会社精工舎 | 投写式液晶表示装置 |
JPH0769539B2 (ja) * | 1986-11-12 | 1995-07-31 | 株式会社日立製作所 | 液晶表示装置 |
JPS63168622A (ja) * | 1987-01-05 | 1988-07-12 | Canon Inc | 光偏向素子 |
US4786146A (en) * | 1987-02-11 | 1988-11-22 | Hughes Aircraft Company | Color sequential illumination system for a liquid crystal light valve |
JPS63200102A (ja) * | 1987-02-17 | 1988-08-18 | Alps Electric Co Ltd | バツクライト照光装置 |
JPS63271313A (ja) * | 1987-04-30 | 1988-11-09 | Nikon Corp | 偏光器 |
-
1988
- 1988-12-27 US US07/290,471 patent/US4913529A/en not_active Expired - Fee Related
-
1989
- 1989-12-20 DE DE68916398T patent/DE68916398T2/de not_active Expired - Fee Related
- 1989-12-20 EP EP89203274A patent/EP0376395B1/en not_active Expired - Lifetime
- 1989-12-22 KR KR1019890019213A patent/KR0152982B1/ko not_active IP Right Cessation
- 1989-12-23 CN CN89109650A patent/CN1020133C/zh not_active Expired - Fee Related
- 1989-12-25 JP JP1332978A patent/JP2747349B2/ja not_active Expired - Lifetime
-
1996
- 1996-05-02 HK HK75496A patent/HK75496A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR900010448A (ko) | 1990-07-07 |
DE68916398D1 (de) | 1994-07-28 |
EP0376395A3 (en) | 1991-01-23 |
CN1043994A (zh) | 1990-07-18 |
JPH02239219A (ja) | 1990-09-21 |
EP0376395A2 (en) | 1990-07-04 |
US4913529A (en) | 1990-04-03 |
CN1020133C (zh) | 1993-03-17 |
KR0152982B1 (ko) | 1998-11-16 |
DE68916398T2 (de) | 1995-02-02 |
JP2747349B2 (ja) | 1998-05-06 |
EP0376395B1 (en) | 1994-06-22 |
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