FR2685102B1 - ELECTRO-OPTICAL DEVICE WITH VARIABLE TRANSPARENCY. - Google Patents

ELECTRO-OPTICAL DEVICE WITH VARIABLE TRANSPARENCY.

Info

Publication number
FR2685102B1
FR2685102B1 FR9115768A FR9115768A FR2685102B1 FR 2685102 B1 FR2685102 B1 FR 2685102B1 FR 9115768 A FR9115768 A FR 9115768A FR 9115768 A FR9115768 A FR 9115768A FR 2685102 B1 FR2685102 B1 FR 2685102B1
Authority
FR
France
Prior art keywords
electro
optical device
variable transparency
transparency
variable
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.)
Expired - Fee Related
Application number
FR9115768A
Other languages
French (fr)
Other versions
FR2685102A1 (en
Inventor
Joachim Gruppe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asulab AG
Original Assignee
Asulab AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to FR9115768A priority Critical patent/FR2685102B1/en
Application filed by Asulab AG filed Critical Asulab AG
Priority to AU28932/92A priority patent/AU663897B2/en
Priority to DE69210010T priority patent/DE69210010T2/en
Priority to JP5508157A priority patent/JPH06504146A/en
Priority to BR9205510A priority patent/BR9205510A/en
Priority to AT92922686T priority patent/ATE136763T1/en
Priority to KR1019930701965A priority patent/KR930702929A/en
Priority to ES92922686T priority patent/ES2088599T3/en
Priority to SG1996001826A priority patent/SG65551A1/en
Priority to EP92922686A priority patent/EP0565684B1/en
Priority to CA002098825A priority patent/CA2098825A1/en
Priority to PCT/EP1992/002503 priority patent/WO1993008774A1/en
Publication of FR2685102A1 publication Critical patent/FR2685102A1/en
Application granted granted Critical
Publication of FR2685102B1 publication Critical patent/FR2685102B1/en
Priority to US08/500,642 priority patent/US5608567A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve
    • 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
FR9115768A 1991-11-05 1991-12-17 ELECTRO-OPTICAL DEVICE WITH VARIABLE TRANSPARENCY. Expired - Fee Related FR2685102B1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
FR9115768A FR2685102B1 (en) 1991-12-17 1991-12-17 ELECTRO-OPTICAL DEVICE WITH VARIABLE TRANSPARENCY.
CA002098825A CA2098825A1 (en) 1991-11-05 1992-10-31 Electro-optical device having variable light transmission
JP5508157A JPH06504146A (en) 1991-11-05 1992-10-31 Electro-optical device with variable transparency
BR9205510A BR9205510A (en) 1991-11-05 1992-10-31 Electro-optical device of variable transparency, and device to protect the eyes
AT92922686T ATE136763T1 (en) 1991-11-05 1992-10-31 ELECTRO-OPTICAL DEVICE WITH ADJUSTABLE TRANSMITTANCE
KR1019930701965A KR930702929A (en) 1991-11-05 1992-10-31 Transparency Change Electro-optical Apparatus
AU28932/92A AU663897B2 (en) 1991-11-05 1992-10-31 Electro-optical device having variable light transmission
SG1996001826A SG65551A1 (en) 1991-11-05 1992-10-31 Variable transparency electro-optical device
EP92922686A EP0565684B1 (en) 1991-11-05 1992-10-31 Electro-optical device having variable light transmission
DE69210010T DE69210010T2 (en) 1991-11-05 1992-10-31 ELECTRO-OPTICAL DEVICE WITH ADJUSTABLE TRANSMITTANCE
PCT/EP1992/002503 WO1993008774A1 (en) 1991-11-05 1992-10-31 Electro-optical device having variable light transmission
ES92922686T ES2088599T3 (en) 1991-11-05 1992-10-31 ELECTRO-OPTICAL DEVICE WITH VARIABLE TRANSPARENCY.
US08/500,642 US5608567A (en) 1991-11-05 1995-07-11 Variable transparency electro-optical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9115768A FR2685102B1 (en) 1991-12-17 1991-12-17 ELECTRO-OPTICAL DEVICE WITH VARIABLE TRANSPARENCY.

Publications (2)

Publication Number Publication Date
FR2685102A1 FR2685102A1 (en) 1993-06-18
FR2685102B1 true FR2685102B1 (en) 1994-04-15

Family

ID=9420215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9115768A Expired - Fee Related FR2685102B1 (en) 1991-11-05 1991-12-17 ELECTRO-OPTICAL DEVICE WITH VARIABLE TRANSPARENCY.

Country Status (1)

Country Link
FR (1) FR2685102B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5943474A (en) * 1997-07-09 1999-08-24 Branson Ultrasonics Corporation Welding method and apparatus
US5949959A (en) * 1997-07-09 1999-09-07 Branson Ultrasonics Corporation Welding method and apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7538264U (en) * 1974-12-02 1977-09-22 Revue Thommen Ag, Waldenburg (Schweiz) LIGHT PROTECTION FILTER
CH629001A5 (en) * 1978-02-06 1982-03-31 Ebauches Sa Display unit electro-optical passive.
EP0091514B1 (en) * 1982-04-14 1987-06-16 André M. Eggenschwiler Protective light filter, in particular for protective shields or welding glasses
SE464264B (en) * 1984-02-24 1991-03-25 Esab Ab OPTICAL FILTER FOR WELDING GLASS
GB2169417A (en) * 1984-12-28 1986-07-09 Olympus Optical Co Liquid crystal lens having a variable focal length

Also Published As

Publication number Publication date
FR2685102A1 (en) 1993-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse