GB2082382B - High-pressure sodium vapour discharge lamp - Google Patents
High-pressure sodium vapour discharge lampInfo
- Publication number
- GB2082382B GB2082382B GB8125034A GB8125034A GB2082382B GB 2082382 B GB2082382 B GB 2082382B GB 8125034 A GB8125034 A GB 8125034A GB 8125034 A GB8125034 A GB 8125034A GB 2082382 B GB2082382 B GB 2082382B
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge lamp
- pressure sodium
- vapour discharge
- sodium vapour
- pressure
- 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
- H01J61/30—Vessels; Containers
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/302—Vessels; Containers characterised by the material of the vessel
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8004726A NL185480C (en) | 1980-08-21 | 1980-08-21 | HIGH PRESSURE SODIUM VAPOR DISCHARGE LAMP. |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2082382A GB2082382A (en) | 1982-03-03 |
GB2082382B true GB2082382B (en) | 1984-03-28 |
Family
ID=19835764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8125034A Expired GB2082382B (en) | 1980-08-21 | 1981-08-17 | High-pressure sodium vapour discharge lamp |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5755056A (en) |
BE (1) | BE890021A (en) |
DE (1) | DE3131990A1 (en) |
FR (1) | FR2489039A1 (en) |
GB (1) | GB2082382B (en) |
NL (1) | NL185480C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4620131A (en) * | 1983-07-25 | 1986-10-28 | U.S. Philips Corporation | Lamp with discharge vessel made of densely sintered translucent aluminium oxide |
CA2465786A1 (en) * | 2001-10-02 | 2003-04-10 | Gem Lighting Llc | High intensity discharge lamp with single crystal sapphire envelope |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7204638A (en) * | 1972-04-07 | 1973-10-09 | ||
US3906272A (en) * | 1974-04-01 | 1975-09-16 | Gen Electric | Low wattage high pressure sodium vapor lamps |
NL177058C (en) * | 1977-04-15 | 1985-07-16 | Philips Nv | HIGH PRESSURE SODIUM VAPOR DISCHARGE LAMP. |
JPS5477481A (en) * | 1977-12-02 | 1979-06-20 | Ngk Insulators Ltd | Polycrystal transparent alumina light emitting tube and high voltage vapor discharge lamp using same |
JPS5553054A (en) * | 1978-10-14 | 1980-04-18 | Toshiba Corp | High pressure sodium lamp |
-
1980
- 1980-08-21 NL NL8004726A patent/NL185480C/en not_active IP Right Cessation
-
1981
- 1981-08-13 DE DE19813131990 patent/DE3131990A1/en active Granted
- 1981-08-17 GB GB8125034A patent/GB2082382B/en not_active Expired
- 1981-08-17 FR FR8115824A patent/FR2489039A1/en active Granted
- 1981-08-18 JP JP12830581A patent/JPS5755056A/en active Pending
- 1981-08-19 BE BE0/205719A patent/BE890021A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3131990C2 (en) | 1992-07-02 |
JPS5755056A (en) | 1982-04-01 |
NL8004726A (en) | 1982-03-16 |
NL185480B (en) | 1989-11-16 |
NL185480C (en) | 1991-01-16 |
FR2489039B1 (en) | 1984-10-19 |
GB2082382A (en) | 1982-03-03 |
BE890021A (en) | 1982-02-19 |
DE3131990A1 (en) | 1982-04-22 |
FR2489039A1 (en) | 1982-02-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930817 |