CH566776A5 - - Google Patents

Info

Publication number
CH566776A5
CH566776A5 CH337274A CH337274A CH566776A5 CH 566776 A5 CH566776 A5 CH 566776A5 CH 337274 A CH337274 A CH 337274A CH 337274 A CH337274 A CH 337274A CH 566776 A5 CH566776 A5 CH 566776A5
Authority
CH
Switzerland
Application number
CH337274A
Original Assignee
Aga Ab
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 Aga Ab filed Critical Aga Ab
Publication of CH566776A5 publication Critical patent/CH566776A5/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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/281—Interference filters designed for the infrared light
    • G02B5/282—Interference filters designed for the infrared light reflecting for infrared and transparent for visible light, e.g. heat reflectors, laser protection
    • 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
    • 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
    • G02C7/107—Interference colour filters
CH337274A 1973-03-14 1974-03-11 CH566776A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7303543A SE386066B (sv) 1973-03-14 1973-03-14 Skyddsanordning for skydd mot stralning, exv. vid svetsning

Publications (1)

Publication Number Publication Date
CH566776A5 true CH566776A5 (de) 1975-09-30

Family

ID=20316905

Family Applications (1)

Application Number Title Priority Date Filing Date
CH337274A CH566776A5 (de) 1973-03-14 1974-03-11

Country Status (11)

Country Link
JP (1) JPS5070039A (de)
BR (1) BR7401906D0 (de)
CA (1) CA999171A (de)
CH (1) CH566776A5 (de)
DE (1) DE2412302A1 (de)
DK (1) DK133658B (de)
FR (1) FR2221118B1 (de)
GB (1) GB1468963A (de)
IT (1) IT1006366B (de)
NL (1) NL7402951A (de)
SE (1) SE386066B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5453451U (de) * 1977-09-22 1979-04-13
JPS5565602U (de) * 1978-10-30 1980-05-06
DD206460A3 (de) * 1981-08-03 1984-01-25 Ulrich Werner Waermereflektierendes schweisserschutzfilter
JPH01255802A (ja) * 1988-04-06 1989-10-12 Japan Aviation Electron Ind Ltd 多層光学素子

Also Published As

Publication number Publication date
FR2221118B1 (de) 1977-09-23
CA999171A (en) 1976-11-02
NL7402951A (de) 1974-09-17
IT1006366B (it) 1976-09-30
DK133658C (de) 1976-11-15
FR2221118A1 (de) 1974-10-11
SE386066B (sv) 1976-08-02
DK133658B (da) 1976-06-28
BR7401906D0 (pt) 1974-10-29
GB1468963A (en) 1977-03-30
DE2412302A1 (de) 1974-09-26
JPS5070039A (de) 1975-06-11

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Legal Events

Date Code Title Description
PL Patent ceased