FI923822A7 - Valolta suojaava suodatin, jossa on optisen läpäisevyytensä suhteen ohjattava suodatinelementti - Google Patents

Valolta suojaava suodatin, jossa on optisen läpäisevyytensä suhteen ohjattava suodatinelementti Download PDF

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Publication number
FI923822A7
FI923822A7 FI923822A FI923822A FI923822A7 FI 923822 A7 FI923822 A7 FI 923822A7 FI 923822 A FI923822 A FI 923822A FI 923822 A FI923822 A FI 923822A FI 923822 A7 FI923822 A7 FI 923822A7
Authority
FI
Finland
Prior art keywords
filter
terms
controlled
light
optical transmittance
Prior art date
Application number
FI923822A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI923822A0 (fi
FI923822L (fi
Inventor
Andre M Eggenschwiler
Original Assignee
Optrel 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
Application filed by Optrel Ag filed Critical Optrel Ag
Publication of FI923822A0 publication Critical patent/FI923822A0/fi
Publication of FI923822L publication Critical patent/FI923822L/fi
Publication of FI923822A7 publication Critical patent/FI923822A7/fi

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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (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)
  • Helmets And Other Head Coverings (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
FI923822A 1991-08-27 1992-08-26 Valolta suojaava suodatin, jossa on optisen läpäisevyytensä suhteen ohjattava suodatinelementti FI923822A7 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4128291A DE4128291A1 (de) 1991-08-27 1991-08-27 Lichtschutzfilter, mit einem bezueglich seiner optischen transmission elektrisch steuerbaren filterelement
CH9257 1992-01-10

Publications (3)

Publication Number Publication Date
FI923822A0 FI923822A0 (fi) 1992-08-26
FI923822L FI923822L (fi) 1993-02-28
FI923822A7 true FI923822A7 (fi) 1993-02-28

Family

ID=6439150

Family Applications (1)

Application Number Title Priority Date Filing Date
FI923822A FI923822A7 (fi) 1991-08-27 1992-08-26 Valolta suojaava suodatin, jossa on optisen läpäisevyytensä suhteen ohjattava suodatinelementti

Country Status (3)

Country Link
DE (1) DE4128291A1 (cg-RX-API-DMAC7.html)
FI (1) FI923822A7 (cg-RX-API-DMAC7.html)
ZA (1) ZA926483B (cg-RX-API-DMAC7.html)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330817C1 (de) * 1993-09-13 1994-12-01 Optrel Ag Verfahren zur Steuerung einer Blendschutzeinrichtung und Blendschutzeinrichtung zur Durchführung des Verfahrens
AU6670800A (en) † 1999-08-13 2001-03-13 Fronius Schweissmaschinen Produktion Gmbh & Co. Kg Data display on a welding screen
US7150047B2 (en) 2003-07-02 2006-12-19 Lightswitch Safety Systems, Inc. Indicator layout on an auto-darkening lens for use in welding
WO2005002480A1 (en) * 2003-07-03 2005-01-13 Lightswitch Safety Systems, Inc. Multi-stage sensor for an auto-darkening lens for use in welding and method
WO2005008275A1 (en) * 2003-07-08 2005-01-27 Lightswitch Safety Systems, Inc. Method and element for light detecting and angle of view compensation for optical devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1430183A (en) * 1972-03-27 1976-03-31 Aga Ab Device for the protection of an operators eyes against intensive radiation
GB2122366B (en) * 1982-06-03 1985-11-27 Tong Shen Hsieh Automatic liquid-crystal light shutter
DE3437704A1 (de) * 1984-01-02 1985-07-11 Jenoptik Jena Gmbh, Ddr 6900 Jena Empfaengereinheit fuer eine blendschutzbrille

Also Published As

Publication number Publication date
FI923822A0 (fi) 1992-08-26
FI923822L (fi) 1993-02-28
DE4128291A1 (de) 1993-03-04
ZA926483B (en) 1993-03-08
DE4128291C2 (cg-RX-API-DMAC7.html) 1993-07-29

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Legal Events

Date Code Title Description
FD Application lapsed