NL7304253A - - Google Patents

Info

Publication number
NL7304253A
NL7304253A NL7304253A NL7304253A NL7304253A NL 7304253 A NL7304253 A NL 7304253A NL 7304253 A NL7304253 A NL 7304253A NL 7304253 A NL7304253 A NL 7304253A NL 7304253 A NL7304253 A NL 7304253A
Authority
NL
Netherlands
Application number
NL7304253A
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 filed Critical
Publication of NL7304253A publication Critical patent/NL7304253A/xx

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)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Ophthalmology & Optometry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Liquid Crystal (AREA)
  • Eyeglasses (AREA)
  • Prostheses (AREA)
  • Control Of Non-Electrical Variables (AREA)
NL7304253A 1972-03-27 1973-03-27 NL7304253A (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE391672 1972-03-27

Publications (1)

Publication Number Publication Date
NL7304253A true NL7304253A (cs) 1973-10-01

Family

ID=20263132

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7304253A NL7304253A (cs) 1972-03-27 1973-03-27

Country Status (7)

Country Link
JP (1) JPS498431A (cs)
DE (1) DE2315308C3 (cs)
DK (1) DK132046C (cs)
FR (1) FR2178052B1 (cs)
GB (1) GB1430183A (cs)
IT (1) IT981615B (cs)
NL (1) NL7304253A (cs)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29684E (en) * 1973-12-26 1978-06-27 Welding helmet with eye piece control
DE2550559C3 (de) * 1975-11-11 1981-07-16 Technisch Bureau A.B.O.F. 1972 B.V., 6545 Nijmegen Schutzvorrichtung, für Arbeiten in Bereichen stark schwankender Lichtintensität
US4039803A (en) * 1976-04-08 1977-08-02 Mack Gordon Electro-optic welding helmet lens assembly
JPS538340A (en) * 1976-07-12 1978-01-25 Tomio Makino Automatic highhspeed shuttering plane for ultraviolet ray of welding arc
JPS553261A (en) * 1978-06-22 1980-01-11 Clarion Co Ltd Automatic sound volume adjusting device
EP0059593B1 (en) * 1981-03-02 1988-01-13 Imperial Chemical Industries Plc Method of and apparatus for monitoring gaseous pollutants
ATE27862T1 (de) * 1982-04-14 1987-07-15 Andre M Eggenschwiler Lichtschutzfilter, insbesondere fuer schweissschutzschilder oder schweissschutzbrillen.
FR2530039A1 (fr) * 1982-07-06 1984-01-13 Cuvelier Antoine Lunettes de protection a transmission reglable automatiquement utilisant des cristaux liquides
HUH3092A (en) * 1982-08-25 1986-08-28 Sandor Bihary Method and device for observing light phenomenons
AU2538684A (en) * 1983-02-24 1984-08-30 Commonwealth Industrial Gases Limited, The Light filter
US4759608A (en) * 1985-12-31 1988-07-26 Yang Jong P Automatic liquid crystal light-shutter
US5252817A (en) * 1991-03-25 1993-10-12 Osd Envizion Company Detector system for detecting the occurrence of welding using detector feedback
US5751258A (en) * 1991-03-25 1998-05-12 Osd Envizion, Inc. Liquid crystal lens driver electronics for eye protection, high speed shuttering with consistent performance
DE4128291A1 (de) * 1991-08-27 1993-03-04 Optrel Ag Lichtschutzfilter, mit einem bezueglich seiner optischen transmission elektrisch steuerbaren filterelement
DE4136588C2 (de) * 1991-11-07 1993-11-18 Deutsche Aerospace Vorrichtung zum Schutz gegen überhöhte optische Leistungs- und Energiedichten
DE4327051A1 (de) * 1993-08-12 1994-05-19 Peter Schulthess Programmierbare elektronische Okklusionsbrille
US7005624B2 (en) 2000-09-11 2006-02-28 Jackson Products, Inc. Low power phototransistor-based welding helmet providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light
US6815652B1 (en) 2000-09-11 2004-11-09 Jackson Products, Inc. Low power phototransistor-based welding helmet providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light
US6934967B2 (en) 2000-11-09 2005-08-30 3M Innovative Properties Company Welding operation liquid crystal protection mask
JP2002144044A (ja) * 2000-11-09 2002-05-21 Three M Innovative Properties Co 溶接用液晶防護面
US6881939B1 (en) 2001-05-05 2005-04-19 Jackson Products, Inc. Microprocessor based automatically dimmable eye protection device
US6841772B1 (en) 2001-05-05 2005-01-11 Jackson Products, Inc. Eye-protection device having dual high voltage switching
WO2005017636A2 (en) 2003-08-11 2005-02-24 Hamilton Thomas J Eye-protection device having dual high voltage switching
US7477330B2 (en) 2005-03-09 2009-01-13 3M Innovative Properties Company Automatic darkening filter with offset polarizers
US20060285330A1 (en) 2005-06-20 2006-12-21 Ingvar Sundell Automatic darkening filter with automatic power management
US7637622B2 (en) 2005-10-11 2009-12-29 3M Innovative Properties Company Control of an automatic darkening filter
ES2312284B1 (es) 2007-10-26 2010-01-08 Universidad Complutense De Madrid Gafas de seguridad y prevencion con superficie tratada para la proteccion y terapia de ojos en oficios y deportes.
US9956118B2 (en) 2014-09-15 2018-05-01 3M Innovative Properties Company Personal protective system tool communication adapter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE666410C (de) * 1936-07-21 1938-10-19 Kerzler & Dittelbach Elektrote Einrichtung zum Abblenden von Licht mit Hilfe lichtpolarisierender Glaeser, vorzugsweise beim Schweissen
GB909342A (en) * 1958-02-03 1962-10-31 Eastman Kodak Co Improvements in or relating to a device for controlling light transmission or reflection

Also Published As

Publication number Publication date
DE2315308A1 (de) 1973-10-11
DK132046B (da) 1975-10-13
FR2178052A1 (cs) 1973-11-09
DE2315308B2 (de) 1974-04-04
IT981615B (it) 1974-10-10
DK132046C (da) 1976-03-29
GB1430183A (en) 1976-03-31
DE2315308C3 (de) 1978-11-16
FR2178052B1 (cs) 1977-09-23
JPS498431A (cs) 1974-01-25

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Legal Events

Date Code Title Description
BV The patent application has lapsed