FR2489039B1 - - Google Patents
Info
- Publication number
- FR2489039B1 FR2489039B1 FR8115824A FR8115824A FR2489039B1 FR 2489039 B1 FR2489039 B1 FR 2489039B1 FR 8115824 A FR8115824 A FR 8115824A FR 8115824 A FR8115824 A FR 8115824A FR 2489039 B1 FR2489039 B1 FR 2489039B1
- Authority
- FR
- France
- 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 (nl) | 1980-08-21 | 1980-08-21 | Hogedruknatriumdampontladingslamp. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2489039A1 FR2489039A1 (fr) | 1982-02-26 |
| FR2489039B1 true FR2489039B1 (ja) | 1984-10-19 |
Family
ID=19835764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8115824A Granted FR2489039A1 (fr) | 1980-08-21 | 1981-08-17 | Lampe a decharge dans la vapeur de sodium a haute pression |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5755056A (ja) |
| BE (1) | BE890021A (ja) |
| DE (1) | DE3131990A1 (ja) |
| FR (1) | FR2489039A1 (ja) |
| GB (1) | GB2082382B (ja) |
| NL (1) | NL185480C (ja) |
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 |
| JP2005527935A (ja) * | 2002-01-28 | 2005-09-15 | ジェム ライティング エルエルシー | 単結晶サファイア外殻を用いた高輝度放電ランプ |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7204638A (ja) * | 1972-04-07 | 1973-10-09 | ||
| US3906272A (en) * | 1974-04-01 | 1975-09-16 | Gen Electric | Low wattage high pressure sodium vapor lamps |
| NL177058C (nl) * | 1977-04-15 | 1985-07-16 | Philips Nv | Hogedruknatriumdampontladingslamp. |
| 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/xx not_active IP Right Cessation
-
1981
- 1981-08-13 DE DE19813131990 patent/DE3131990A1/de active Granted
- 1981-08-17 GB GB8125034A patent/GB2082382B/en not_active Expired
- 1981-08-17 FR FR8115824A patent/FR2489039A1/fr active Granted
- 1981-08-18 JP JP12830581A patent/JPS5755056A/ja active Pending
- 1981-08-19 BE BE0/205719A patent/BE890021A/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2489039A1 (fr) | 1982-02-26 |
| DE3131990A1 (de) | 1982-04-22 |
| GB2082382A (en) | 1982-03-03 |
| NL8004726A (nl) | 1982-03-16 |
| GB2082382B (en) | 1984-03-28 |
| NL185480B (nl) | 1989-11-16 |
| JPS5755056A (en) | 1982-04-01 |
| NL185480C (nl) | 1991-01-16 |
| DE3131990C2 (ja) | 1992-07-02 |
| BE890021A (fr) | 1982-02-19 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |