ZA926483B - A light protection apparatus comprising an electrically controllable light protection filter element - Google Patents

A light protection apparatus comprising an electrically controllable light protection filter element

Info

Publication number
ZA926483B
ZA926483B ZA926483A ZA926483A ZA926483B ZA 926483 B ZA926483 B ZA 926483B ZA 926483 A ZA926483 A ZA 926483A ZA 926483 A ZA926483 A ZA 926483A ZA 926483 B ZA926483 B ZA 926483B
Authority
ZA
South Africa
Prior art keywords
light protection
filter element
electrically controllable
protection apparatus
controllable light
Prior art date
Application number
ZA926483A
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 ZA926483B publication Critical patent/ZA926483B/en

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

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)
ZA926483A 1991-08-27 1992-08-27 A light protection apparatus comprising an electrically controllable light protection filter element ZA926483B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4128291A DE4128291A1 (en) 1991-08-27 1991-08-27 Light protection filter esp. for welding helmet or protective goggles or shield - has filter element electrically controllable related to its optical transmission which works in conjunction with transmission control unit

Publications (1)

Publication Number Publication Date
ZA926483B true ZA926483B (en) 1993-03-08

Family

ID=6439150

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA926483A ZA926483B (en) 1991-08-27 1992-08-27 A light protection apparatus comprising an electrically controllable light protection filter element

Country Status (2)

Country Link
DE (1) DE4128291A1 (en)
ZA (1) ZA926483B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330817C1 (en) * 1993-09-13 1994-12-01 Optrel Ag Method of controlling an antiglare device, and antiglare device for performing the method
AU6670800A (en) † 1999-08-13 2001-03-13 Fronius Schweissmaschinen Produktion Gmbh & Co. Kg Data display on a welding screen
WO2005002481A1 (en) * 2003-07-02 2005-01-13 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 (en) * 1984-01-02 1985-07-11 Jenoptik Jena Gmbh, Ddr 6900 Jena RECEIVER UNIT FOR GLARE PROTECTIVE GLASSES

Also Published As

Publication number Publication date
DE4128291C2 (en) 1993-07-29
DE4128291A1 (en) 1993-03-04

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