GB1056904A - High pressure discharge lamps - Google Patents
High pressure discharge lampsInfo
- Publication number
- GB1056904A GB1056904A GB21052/65A GB2105265A GB1056904A GB 1056904 A GB1056904 A GB 1056904A GB 21052/65 A GB21052/65 A GB 21052/65A GB 2105265 A GB2105265 A GB 2105265A GB 1056904 A GB1056904 A GB 1056904A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filling
- arc
- high pressure
- mercury
- argon
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamp (AREA)
Abstract
1,056,904. Metal-vapour lamps. SYLVANIA ELECTRIC PRODUCTS Inc. May 18, 1965 [May 28, 1964], No. 21052/65. Heading H1D. The filling of a high pressure mercury vapour lamp includes completely evaporated mercury, a halogen other than fluorine, and molybdenum, the atomic ratio of the halogen to the mercury being in the range of 0À025 to 0À85, and the molybdenum concentration in the range 5À2 x 10<SP>-7</SP> to 1À6 x 10<SP>-5</SP> gm. atoms per cm. of arc length; the filling may also include 25 torr of any of the rare gases to assist starting. The arc tube, which may be of alumina, is mounted within an outer jacket, and may include a starting electrode, a series resistor, and a heat shield. Prior to filling, the arc tube is cleaned by baking out, flushing with argon, and passing an arc between the electrodes in argon. The emission spectrum of the lamp renders it suitable for photo-copying work.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US370888A US3250940A (en) | 1964-05-28 | 1964-05-28 | High pressure discharge device containing molybdenum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1056904A true GB1056904A (en) | 1967-02-01 |
Family
ID=23461601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21052/65A Expired GB1056904A (en) | 1964-05-28 | 1965-05-18 | High pressure discharge lamps |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3250940A (en) |
| DE (1) | DE1251862B (en) |
| GB (1) | GB1056904A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3405303A (en) * | 1964-12-29 | 1968-10-08 | Sylvania Electric Prod | Arc discharge tube having an electrode which contains a light-emitting metal |
| US5594302A (en) * | 1995-08-22 | 1997-01-14 | Lamptech Ltd. | Metal halide lamp including iron and molybdenum |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2697153A (en) * | 1950-11-13 | 1954-12-14 | Westinghouse Electric Corp | Circuit interrupter |
-
0
- DE DENDAT1251862D patent/DE1251862B/de active Pending
-
1964
- 1964-05-28 US US370888A patent/US3250940A/en not_active Expired - Lifetime
-
1965
- 1965-05-18 GB GB21052/65A patent/GB1056904A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3250940A (en) | 1966-05-10 |
| DE1251862B (en) |
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