SE9503784D0 - Liquid crystal shutter - Google Patents
Liquid crystal shutterInfo
- Publication number
- SE9503784D0 SE9503784D0 SE9503784A SE9503784A SE9503784D0 SE 9503784 D0 SE9503784 D0 SE 9503784D0 SE 9503784 A SE9503784 A SE 9503784A SE 9503784 A SE9503784 A SE 9503784A SE 9503784 D0 SE9503784 D0 SE 9503784D0
- Authority
- SE
- Sweden
- Prior art keywords
- liquid crystal
- retardation
- crystal cell
- retardation film
- state
- 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
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
- A61F9/06—Masks, shields or hoods for welders
- A61F9/065—Masks, shields or hoods for welders use of particular optical filters
- A61F9/067—Masks, shields or hoods for welders use of particular optical filters with variable transmission
-
- 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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or 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
- G02F2203/00—Function characteristic
- G02F2203/62—Switchable arrangements whereby the element being usually not switchable
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/01—Number of plates being 1
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/08—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates with a particular optical axis orientation
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Nonlinear Science (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9503784A SE508272C2 (sv) | 1995-10-26 | 1995-10-26 | Vätskekristall-slutarkonstruktion, och en ljusskä rmningsanordning innefattande en sådan konstruktion |
CN96197858.9A CN1200660A (zh) | 1995-10-26 | 1996-10-25 | 液晶快门及包含此种快门的遮光装置 |
JP9516546A JPH11514456A (ja) | 1995-10-26 | 1996-10-25 | 液晶シャッター及びそのようなシャッターを有する光遮蔽装置 |
US09/051,930 US20010017681A1 (en) | 1995-10-26 | 1996-10-25 | Liquid crystal shutter and a light shielding device including such a shutter |
PCT/SE1996/001373 WO1997015255A1 (en) | 1995-10-26 | 1996-10-25 | A liquid crystal shutter and a light shielding device including such a shutter |
AU73566/96A AU7356696A (en) | 1995-10-26 | 1996-10-25 | A liquid crystal shutter and a light shielding device including such a shutter |
EP96935759A EP0858305A1 (en) | 1995-10-26 | 1996-10-25 | A liquid crystal shutter and a light shielding device including such a shutter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9503784A SE508272C2 (sv) | 1995-10-26 | 1995-10-26 | Vätskekristall-slutarkonstruktion, och en ljusskä rmningsanordning innefattande en sådan konstruktion |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9503784D0 true SE9503784D0 (sv) | 1995-10-26 |
SE9503784L SE9503784L (sv) | 1997-04-27 |
SE508272C2 SE508272C2 (sv) | 1998-09-21 |
Family
ID=20399984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9503784A SE508272C2 (sv) | 1995-10-26 | 1995-10-26 | Vätskekristall-slutarkonstruktion, och en ljusskä rmningsanordning innefattande en sådan konstruktion |
Country Status (7)
Country | Link |
---|---|
US (1) | US20010017681A1 (sv) |
EP (1) | EP0858305A1 (sv) |
JP (1) | JPH11514456A (sv) |
CN (1) | CN1200660A (sv) |
AU (1) | AU7356696A (sv) |
SE (1) | SE508272C2 (sv) |
WO (1) | WO1997015255A1 (sv) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69833284T2 (de) | 1997-04-23 | 2006-09-28 | Sharp K.K. | Reflektierende Flüssigkristallanzeige |
TW390808B (en) | 1997-06-18 | 2000-05-21 | Optrel Ag Optoelektronik | Active electrooptic filter device |
GB2335755A (en) | 1998-03-26 | 1999-09-29 | Sharp Kk | Liquid crystal device |
US7098472B2 (en) * | 2002-06-28 | 2006-08-29 | Progressant Technologies, Inc. | Negative differential resistance (NDR) elements and memory device using the same |
US20040036821A1 (en) * | 2002-08-22 | 2004-02-26 | Optiva, Inc. | Liquid crystal shutter |
US20050177140A1 (en) * | 2004-02-06 | 2005-08-11 | Harvey Jay | Pulsed light treatment apparatus and associated method with preliminary light pulse generation |
US7477330B2 (en) | 2005-03-09 | 2009-01-13 | 3M Innovative Properties Company | Automatic darkening filter with offset polarizers |
US8542334B2 (en) | 2005-05-20 | 2013-09-24 | Institut Jozef Stefan | Variable contrast, wide viewing angle LCD light-switching filter |
SI22066A (sl) | 2005-05-20 | 2006-12-31 | Institut "Jozef Stefan" | Tekoce kristalni preklopni svetlobni filter s spremenljivim kontrastom in sirokim vidnim kotom |
US7637622B2 (en) | 2005-10-11 | 2009-12-29 | 3M Innovative Properties Company | Control of an automatic darkening filter |
US20080068521A1 (en) | 2006-09-19 | 2008-03-20 | Sperian Welding Protection Ag | Electro-optical glare protection filter and glare protection unit for a portable glare protection device |
CN102540552A (zh) * | 2010-12-31 | 2012-07-04 | 浙江亿思达显示科技有限公司 | 快门眼镜镜片、快门眼镜 |
TW201232043A (en) * | 2011-01-26 | 2012-08-01 | I Art Corp | Single-piece liquid crystal 3D glasses |
GB2498726A (en) * | 2012-01-25 | 2013-07-31 | 3M Innovative Properties Co | Automatic welding filter with tunable spectral transmission |
CN102551953B (zh) * | 2012-03-08 | 2013-11-20 | 厦门高科防静电装备有限公司 | 焊接作业自动变光眼镜 |
CN102967957A (zh) * | 2012-11-21 | 2013-03-13 | 合肥工业大学 | 一种能自调节透射率的低功耗电控液晶光阀装置 |
US20140168546A1 (en) | 2012-12-13 | 2014-06-19 | 3M Innovative Properties Company | Curved Automatic-Darkening Filter |
AU2015318237B2 (en) | 2014-09-15 | 2018-05-31 | 3M Innovative Properties Company | Personal protective system tool communication adapter |
WO2016102492A1 (en) | 2014-12-22 | 2016-06-30 | Optrel Ag | Electro-optical glare-protection filter |
KR102304918B1 (ko) * | 2019-09-20 | 2021-09-27 | 주식회사 오토스윙 | 광기능성층 및 패널 제어 기술이 적용된 용접용 보호구 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4385806A (en) * | 1978-06-08 | 1983-05-31 | Fergason James L | Liquid crystal display with improved angle of view and response times |
US5187603A (en) * | 1990-06-26 | 1993-02-16 | Tektronix, Inc. | High contrast light shutter system |
US5252817A (en) * | 1991-03-25 | 1993-10-12 | Osd Envizion Company | Detector system for detecting the occurrence of welding using detector feedback |
SE502868C2 (sv) * | 1994-04-26 | 1996-02-05 | Hoernell Elektrooptik Ab | Svetssnabbfilter med förbättrade vinkelegenskaper |
-
1995
- 1995-10-26 SE SE9503784A patent/SE508272C2/sv not_active IP Right Cessation
-
1996
- 1996-10-25 WO PCT/SE1996/001373 patent/WO1997015255A1/en not_active Application Discontinuation
- 1996-10-25 JP JP9516546A patent/JPH11514456A/ja active Pending
- 1996-10-25 CN CN96197858.9A patent/CN1200660A/zh active Pending
- 1996-10-25 AU AU73566/96A patent/AU7356696A/en not_active Abandoned
- 1996-10-25 US US09/051,930 patent/US20010017681A1/en not_active Abandoned
- 1996-10-25 EP EP96935759A patent/EP0858305A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
SE9503784L (sv) | 1997-04-27 |
AU7356696A (en) | 1997-05-15 |
JPH11514456A (ja) | 1999-12-07 |
EP0858305A1 (en) | 1998-08-19 |
CN1200660A (zh) | 1998-12-02 |
WO1997015255A1 (en) | 1997-05-01 |
US20010017681A1 (en) | 2001-08-30 |
SE508272C2 (sv) | 1998-09-21 |
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Legal Events
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NUG | Patent has lapsed |
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