RU94042089A - Method of making uv light filter - Google Patents
Method of making uv light filterInfo
- Publication number
- RU94042089A RU94042089A RU94042089/28A RU94042089A RU94042089A RU 94042089 A RU94042089 A RU 94042089A RU 94042089/28 A RU94042089/28 A RU 94042089/28A RU 94042089 A RU94042089 A RU 94042089A RU 94042089 A RU94042089 A RU 94042089A
- Authority
- RU
- Russia
- Prior art keywords
- filter
- radiation
- light filter
- range
- light
- Prior art date
Links
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Luminescent Compositions (AREA)
- Optical Filters (AREA)
Abstract
FIELD: manufacture of UV light filters. SUBSTANCE: UV light filter is used as a component of optical hygrometer for suppressing irradiation of lamp at the range of luminescence of ions ofhydroxyl. Cutting-out UV light filter is made on the base of monocrystal magnesium fluoride by illuminating the filter with quanta with energy of 10-15 eV at exposure of 200-300 mW/hour and temperature of 200-300 deg C. Described UV filter is able to absorb lamp radiation at 270-320 nm range from 2% to 0% and transmit radiation at 121,6 range to 50%. The light filter is chemically resistive to different acids, heating to 500 deg C and UV irradiation. EFFECT: improved quality of filter. 1 cl, 1 dwg
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94042089A RU2095835C1 (en) | 1994-11-24 | 1994-11-24 | Process of manufacture of uv filters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94042089A RU2095835C1 (en) | 1994-11-24 | 1994-11-24 | Process of manufacture of uv filters |
Publications (2)
Publication Number | Publication Date |
---|---|
RU94042089A true RU94042089A (en) | 1996-09-20 |
RU2095835C1 RU2095835C1 (en) | 1997-11-10 |
Family
ID=20162631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU94042089A RU2095835C1 (en) | 1994-11-24 | 1994-11-24 | Process of manufacture of uv filters |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2095835C1 (en) |
-
1994
- 1994-11-24 RU RU94042089A patent/RU2095835C1/en active
Also Published As
Publication number | Publication date |
---|---|
RU2095835C1 (en) | 1997-11-10 |
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