AU7356796A - A liquid crystal shutter and a light shielding device including such a shutter - Google Patents
A liquid crystal shutter and a light shielding device including such a shutterInfo
- Publication number
- AU7356796A AU7356796A AU73567/96A AU7356796A AU7356796A AU 7356796 A AU7356796 A AU 7356796A AU 73567/96 A AU73567/96 A AU 73567/96A AU 7356796 A AU7356796 A AU 7356796A AU 7356796 A AU7356796 A AU 7356796A
- Authority
- AU
- Australia
- Prior art keywords
- shutter
- liquid crystal
- device including
- light shielding
- shielding device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
-
- 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
-
- 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
- G02F1/13471—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 in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Nonlinear Science (AREA)
- Ophthalmology & Optometry (AREA)
- Biomedical Technology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9503785 | 1995-10-26 | ||
SE9503785A SE516183C2 (en) | 1995-10-26 | 1995-10-26 | liquid crystal |
PCT/SE1996/001374 WO1997015256A1 (en) | 1995-10-26 | 1996-10-25 | A liquid crystal shutter and a light shielding device including such a shutter |
Publications (1)
Publication Number | Publication Date |
---|---|
AU7356796A true AU7356796A (en) | 1997-05-15 |
Family
ID=20399985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU73567/96A Abandoned AU7356796A (en) | 1995-10-26 | 1996-10-25 | A liquid crystal shutter and a light shielding device including such a shutter |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0957852A1 (en) |
JP (1) | JPH11514457A (en) |
CN (1) | CN1200661A (en) |
AU (1) | AU7356796A (en) |
SE (1) | SE516183C2 (en) |
WO (1) | WO1997015256A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE50106550D1 (en) * | 2000-12-21 | 2005-07-21 | Optrel Ag Wattwil | BLADE PROTECTION DEVICE FOR WELDING PROTECTION MASKS |
JP4382317B2 (en) * | 2001-12-06 | 2009-12-09 | シチズンホールディングス株式会社 | Liquid crystal variable wavelength filter device |
WO2004053586A1 (en) * | 2002-12-11 | 2004-06-24 | Optiva, Inc. | Liquid crystal shutter |
EP1821136A1 (en) * | 2006-02-17 | 2007-08-22 | Optrel Ag | Glare protection device |
GB2498726A (en) | 2012-01-25 | 2013-07-31 | 3M Innovative Properties Co | Automatic welding filter with tunable spectral transmission |
US20140168546A1 (en) * | 2012-12-13 | 2014-06-19 | 3M Innovative Properties Company | Curved Automatic-Darkening Filter |
EP3436871B1 (en) * | 2016-03-28 | 2020-04-22 | LC-TEC Displays AB | Electro-optic guest-host liquid crystal variable transmission filter with wide viewing angle |
EP3454803B1 (en) | 2016-05-12 | 2023-11-15 | 3M Innovative Properties Company | Protective headgear comprising a curved switchable shutter and comprising multiple antireflective layers |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE425048B (en) * | 1978-04-24 | 1982-08-30 | Ake Hornell | MULTIPLE GLASS, SEPARATE PROTECTIVE GLASS IN A WELDING SCREEN |
SE464264B (en) * | 1984-02-24 | 1991-03-25 | Esab Ab | OPTICAL FILTER FOR WELDING GLASS |
US5208688A (en) * | 1991-02-08 | 1993-05-04 | Osd Envizion Company | Eye protection device for welding helmets |
SE502868C2 (en) * | 1994-04-26 | 1996-02-05 | Hoernell Elektrooptik Ab | Welding quick filter with improved angular properties |
-
1995
- 1995-10-26 SE SE9503785A patent/SE516183C2/en not_active IP Right Cessation
-
1996
- 1996-10-25 JP JP9516547A patent/JPH11514457A/en active Pending
- 1996-10-25 AU AU73567/96A patent/AU7356796A/en not_active Abandoned
- 1996-10-25 EP EP96935760A patent/EP0957852A1/en not_active Ceased
- 1996-10-25 CN CN 96197859 patent/CN1200661A/en active Pending
- 1996-10-25 WO PCT/SE1996/001374 patent/WO1997015256A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CN1200661A (en) | 1998-12-02 |
WO1997015256A1 (en) | 1997-05-01 |
SE516183C2 (en) | 2001-11-26 |
SE9503785D0 (en) | 1995-10-26 |
EP0957852A1 (en) | 1999-11-24 |
SE9503785L (en) | 1997-04-27 |
JPH11514457A (en) | 1999-12-07 |
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