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
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
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Optical Filters (AREA)
- Machine Tool Copy Controls (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7303543A SE386066B (en) | 1973-03-14 | 1973-03-14 | PROTECTIVE DEVICE FOR RADIATION PROTECTION, EXV. WHEN WELDING |
Publications (1)
Publication Number | Publication Date |
---|---|
CH566776A5 true CH566776A5 (en) | 1975-09-30 |
Family
ID=20316905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH337274A CH566776A5 (en) | 1973-03-14 | 1974-03-11 |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS5070039A (en) |
BR (1) | BR7401906D0 (en) |
CA (1) | CA999171A (en) |
CH (1) | CH566776A5 (en) |
DE (1) | DE2412302A1 (en) |
DK (1) | DK133658B (en) |
FR (1) | FR2221118B1 (en) |
GB (1) | GB1468963A (en) |
IT (1) | IT1006366B (en) |
NL (1) | NL7402951A (en) |
SE (1) | SE386066B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5453451U (en) * | 1977-09-22 | 1979-04-13 | ||
JPS5565602U (en) * | 1978-10-30 | 1980-05-06 | ||
DD206460A3 (en) * | 1981-08-03 | 1984-01-25 | Ulrich Werner | HEAT-CLEANING WELDING PROTECTION FILTER |
JPH01255802A (en) * | 1988-04-06 | 1989-10-12 | Japan Aviation Electron Ind Ltd | Multilayered optical element |
-
1973
- 1973-03-14 SE SE7303543A patent/SE386066B/en unknown
-
1974
- 1974-03-01 GB GB933174A patent/GB1468963A/en not_active Expired
- 1974-03-05 NL NL7402951A patent/NL7402951A/xx not_active Application Discontinuation
- 1974-03-09 JP JP2764874A patent/JPS5070039A/ja active Pending
- 1974-03-11 CH CH337274A patent/CH566776A5/xx not_active IP Right Cessation
- 1974-03-12 FR FR7408308A patent/FR2221118B1/fr not_active Expired
- 1974-03-13 BR BR190674A patent/BR7401906D0/en unknown
- 1974-03-13 CA CA194,896A patent/CA999171A/en not_active Expired
- 1974-03-14 DE DE19742412302 patent/DE2412302A1/en not_active Ceased
- 1974-03-14 DK DK142874A patent/DK133658B/en not_active IP Right Cessation
- 1974-04-08 IT IT2067174A patent/IT1006366B/en active
Also Published As
Publication number | Publication date |
---|---|
DK133658C (en) | 1976-11-15 |
DK133658B (en) | 1976-06-28 |
FR2221118A1 (en) | 1974-10-11 |
IT1006366B (en) | 1976-09-30 |
FR2221118B1 (en) | 1977-09-23 |
SE386066B (en) | 1976-08-02 |
BR7401906D0 (en) | 1974-10-29 |
JPS5070039A (en) | 1975-06-11 |
CA999171A (en) | 1976-11-02 |
GB1468963A (en) | 1977-03-30 |
NL7402951A (en) | 1974-09-17 |
DE2412302A1 (en) | 1974-09-26 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |