GB1129865A - Improvements in or relating to low-pressure mercury vapour discharge lamps - Google Patents
Improvements in or relating to low-pressure mercury vapour discharge lampsInfo
- Publication number
- GB1129865A GB1129865A GB609966A GB609966A GB1129865A GB 1129865 A GB1129865 A GB 1129865A GB 609966 A GB609966 A GB 609966A GB 609966 A GB609966 A GB 609966A GB 1129865 A GB1129865 A GB 1129865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure mercury
- low
- mercury vapour
- electrode
- vapour discharge
- 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
- H01J61/04—Electrodes; Screens; Shields
- H01J61/045—Thermic screens or reflectors
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Lasers (AREA)
Abstract
1,129,865. Metal-vapour lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 Feb., 1966 [16 Feb., 1965], No. 6099/66. Heading H1D. A current supply lead to an activated electrode 15 in a low-pressure mercury vapour discharge lamp passes through a perforation in a ceramic shielding disc 16 of such thickness in the region of the perforation as to cover at least one quarter of the length of the lead measured between the electrode and a point at which the lead is sealed through the tube wall. As shown, the electrode 15 has two leads and is surrounded by a screen 20 supported by a wire 21 sealed in the pinch 12 of a low-pressure mercury vapour discharge lamp. The disc 16 is held in position by a kink in the wire 21 and has a flange 17 surrounding the pinch 12. In an alternative embodiment (Fig. 1, not shown), the flange 17 is omitted. In a further alternative embodiment (Fig. 3, not shown) the ceramic disc has a peripheral region of reduced thickness and bears against the plane end of a discharge tube envelope.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6501884A NL6501884A (en) | 1965-02-16 | 1965-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1129865A true GB1129865A (en) | 1968-10-09 |
Family
ID=19792374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB609966A Expired GB1129865A (en) | 1965-02-16 | 1966-02-11 | Improvements in or relating to low-pressure mercury vapour discharge lamps |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE676450A (en) |
| DE (1) | DE1539486A1 (en) |
| ES (1) | ES323048A1 (en) |
| GB (1) | GB1129865A (en) |
| NL (1) | NL6501884A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL173107C (en) * | 1972-09-12 | 1983-12-01 | Philips Nv | Discharge tube. |
| US6342763B1 (en) | 1997-12-16 | 2002-01-29 | Hitachi, Ltd. | Fluorescent lamp, method for manufacturing the same, and fluorescent lamp device |
| JP3527851B2 (en) * | 1997-12-16 | 2004-05-17 | 日立ライティング株式会社 | Fluorescent lamp, fluorescent lamp manufacturing method and fluorescent lamp device |
-
1965
- 1965-02-16 NL NL6501884A patent/NL6501884A/xx unknown
-
1966
- 1966-01-12 DE DE19661539486 patent/DE1539486A1/en active Pending
- 1966-02-11 GB GB609966A patent/GB1129865A/en not_active Expired
- 1966-02-14 ES ES0323048A patent/ES323048A1/en not_active Expired
- 1966-02-14 BE BE676450D patent/BE676450A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6501884A (en) | 1966-08-17 |
| ES323048A1 (en) | 1966-11-16 |
| DE1539486A1 (en) | 1969-10-16 |
| BE676450A (en) | 1966-08-16 |
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