GB1468963A - Optical filter - Google Patents
Optical filterInfo
- Publication number
- GB1468963A GB1468963A GB933174A GB933174A GB1468963A GB 1468963 A GB1468963 A GB 1468963A GB 933174 A GB933174 A GB 933174A GB 933174 A GB933174 A GB 933174A GB 1468963 A GB1468963 A GB 1468963A
- Authority
- GB
- United Kingdom
- Prior art keywords
- optical filter
- pass
- welder
- march
- band
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 title abstract 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
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 (sv) | 1973-03-14 | 1973-03-14 | Skyddsanordning for skydd mot stralning, exv. vid svetsning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1468963A true GB1468963A (en) | 1977-03-30 |
Family
ID=20316905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB933174A Expired GB1468963A (en) | 1973-03-14 | 1974-03-01 | Optical filter |
Country Status (11)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5453451U (enrdf_load_stackoverflow) * | 1977-09-22 | 1979-04-13 | ||
| JPS5565602U (enrdf_load_stackoverflow) * | 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 |
-
1973
- 1973-03-14 SE SE7303543A patent/SE386066B/xx 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/pt unknown
- 1974-03-13 CA CA194,896A patent/CA999171A/en not_active Expired
- 1974-03-14 DE DE19742412302 patent/DE2412302A1/de not_active Ceased
- 1974-03-14 DK DK142874A patent/DK133658B/da not_active IP Right Cessation
- 1974-04-08 IT IT2067174A patent/IT1006366B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| NL7402951A (enrdf_load_stackoverflow) | 1974-09-17 |
| FR2221118A1 (enrdf_load_stackoverflow) | 1974-10-11 |
| BR7401906D0 (pt) | 1974-10-29 |
| FR2221118B1 (enrdf_load_stackoverflow) | 1977-09-23 |
| JPS5070039A (enrdf_load_stackoverflow) | 1975-06-11 |
| CH566776A5 (enrdf_load_stackoverflow) | 1975-09-30 |
| DK133658B (da) | 1976-06-28 |
| SE386066B (sv) | 1976-08-02 |
| DE2412302A1 (de) | 1974-09-26 |
| IT1006366B (it) | 1976-09-30 |
| CA999171A (en) | 1976-11-02 |
| DK133658C (enrdf_load_stackoverflow) | 1976-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |