IE44478L - Halogen cycle incandescent lamp - Google Patents
Halogen cycle incandescent lampInfo
- Publication number
- IE44478L IE44478L IE5277A IE5277A IE44478L IE 44478 L IE44478 L IE 44478L IE 5277 A IE5277 A IE 5277A IE 5277 A IE5277 A IE 5277A IE 44478 L IE44478 L IE 44478L
- Authority
- IE
- Ireland
- Prior art keywords
- lamp
- metals
- hte
- coating
- attack
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Glass Compositions (AREA)
Abstract
The invention relates to electric incandescent lamps having a gas fill containing halogen. The internal surface of hte lamp envelope and optionally also the exposed surface of internal components of the lamp are protected from attack by halogens including flourine by a continuos imperforate coating composed of a metal oxide resistant to halogen attack. In order to achieve the necessary degree of continuity of hte coating the oxide is formed in situ from a compound of the metal deposited as a solution on the surface. The preferred oxidee is alumina, the other oxides of polyvalent and transition metals, including metals of the lanthanide series may be used. The coatings are preferably formed from solutions of halides of the metals in polar organic solvents such as methanol. The invention prolongs the life of lamps provided with the protective coating and enable such resistant and possibly cheaper materials to be employed for certain lamp components.
[CA1097991A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB104576A GB1571194A (en) | 1976-01-12 | 1976-01-12 | Internal protective coating for incandescent lamps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE44478L true IE44478L (en) | 1977-07-12 |
| IE44478B1 IE44478B1 (en) | 1981-12-16 |
Family
ID=9715212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE5277A IE44478B1 (en) | 1976-01-12 | 1977-01-12 | Internal protective coating for incandescent lamps |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS52101881A (en) |
| AU (1) | AU507484B2 (en) |
| BE (1) | BE850296A (en) |
| CA (1) | CA1097991A (en) |
| DE (1) | DE2701051A1 (en) |
| DK (1) | DK11577A (en) |
| FR (1) | FR2337939A1 (en) |
| GB (1) | GB1571194A (en) |
| IE (1) | IE44478B1 (en) |
| IT (1) | IT1075605B (en) |
| LU (1) | LU76555A1 (en) |
| NL (1) | NL185881C (en) |
| SE (1) | SE437743B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD143980A1 (en) * | 1979-07-13 | 1980-09-17 | Hasso Meinert | LIGHT BULB WITH A FLUOR CIRCULAR PROCESS |
| DE3139294A1 (en) * | 1981-10-02 | 1983-04-21 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | HALOGEN BULB AND METHOD FOR PROTECTING YOUR INTERIOR SURFACE |
| JPS5958753A (en) * | 1982-09-28 | 1984-04-04 | 株式会社東芝 | Incandescent bulb |
| GB8428881D0 (en) * | 1984-11-15 | 1984-12-27 | Atomic Energy Authority Uk | Light scattering coatings |
| DE102008061776A1 (en) | 2008-12-11 | 2010-06-17 | Osram Gesellschaft mit beschränkter Haftung | halogen bulb |
| DE102010042557A1 (en) | 2009-10-21 | 2011-04-28 | Osram Gesellschaft mit beschränkter Haftung | halogen bulb |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT175628B (en) * | 1950-07-12 | 1953-07-25 | Egyesuelt Izzolampa | Incandescent lamp and process for making same |
| FR1139217A (en) * | 1954-02-26 | 1957-06-26 | Philips Nv | Incandescent lamp |
| FR1375567A (en) * | 1963-11-27 | 1964-10-16 | Philips Nv | Gas-filled incandescent lamp |
| HU162781B (en) * | 1971-12-22 | 1973-04-28 |
-
1976
- 1976-01-12 GB GB104576A patent/GB1571194A/en not_active Expired
-
1977
- 1977-01-07 NL NL7700150A patent/NL185881C/en not_active IP Right Cessation
- 1977-01-11 CA CA269,431A patent/CA1097991A/en not_active Expired
- 1977-01-11 IT IT1916677A patent/IT1075605B/en active
- 1977-01-12 IE IE5277A patent/IE44478B1/en unknown
- 1977-01-12 LU LU76555A patent/LU76555A1/xx unknown
- 1977-01-12 BE BE174002A patent/BE850296A/en not_active IP Right Cessation
- 1977-01-12 DK DK11577A patent/DK11577A/en not_active Application Discontinuation
- 1977-01-12 JP JP281177A patent/JPS52101881A/en active Pending
- 1977-01-12 FR FR7700792A patent/FR2337939A1/en active Granted
- 1977-01-12 AU AU21269/77A patent/AU507484B2/en not_active Expired
- 1977-01-12 SE SE7700252A patent/SE437743B/en not_active IP Right Cessation
- 1977-01-12 DE DE19772701051 patent/DE2701051A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| LU76555A1 (en) | 1977-06-17 |
| CA1097991A (en) | 1981-03-24 |
| AU507484B2 (en) | 1980-02-14 |
| GB1571194A (en) | 1980-07-09 |
| BE850296A (en) | 1977-07-12 |
| SE437743B (en) | 1985-03-11 |
| DK11577A (en) | 1977-07-13 |
| AU2126977A (en) | 1978-07-20 |
| IE44478B1 (en) | 1981-12-16 |
| JPS52101881A (en) | 1977-08-26 |
| DE2701051A1 (en) | 1977-07-21 |
| NL185881C (en) | 1990-08-01 |
| DE2701051C2 (en) | 1988-08-11 |
| FR2337939A1 (en) | 1977-08-05 |
| SE7700252L (en) | 1977-07-13 |
| FR2337939B1 (en) | 1980-09-05 |
| NL7700150A (en) | 1977-07-14 |
| NL185881B (en) | 1990-03-01 |
| IT1075605B (en) | 1985-04-22 |
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