BE890021A - Lampe a decharge dans la vapeur de sodium a haute pression - Google Patents
Lampe a decharge dans la vapeur de sodium a haute pressionInfo
- Publication number
- BE890021A BE890021A BE0/205719A BE205719A BE890021A BE 890021 A BE890021 A BE 890021A BE 0/205719 A BE0/205719 A BE 0/205719A BE 205719 A BE205719 A BE 205719A BE 890021 A BE890021 A BE 890021A
- Authority
- BE
- Belgium
- Prior art keywords
- high pressure
- discharge lamp
- vapor discharge
- pressure sodium
- sodium vapor
- Prior art date
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 (1)
Publication Number | Publication Date |
---|---|
BE890021A true BE890021A (fr) | 1982-02-19 |
Family
ID=19835764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE0/205719A BE890021A (fr) | 1980-08-21 | 1981-08-19 | Lampe a decharge dans la vapeur de sodium a haute pression |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5755056A (fr) |
BE (1) | BE890021A (fr) |
DE (1) | DE3131990A1 (fr) |
FR (1) | FR2489039A1 (fr) |
GB (1) | GB2082382B (fr) |
NL (1) | NL185480C (fr) |
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 |
WO2003030212A1 (fr) * | 2001-10-02 | 2003-04-10 | Gem Lighting Llc | Lampe a decharge a haute intensite a enveloppe en saphir monocristallin |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7204638A (fr) * | 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 |
---|---|
GB2082382B (en) | 1984-03-28 |
FR2489039A1 (fr) | 1982-02-26 |
NL185480B (nl) | 1989-11-16 |
DE3131990A1 (de) | 1982-04-22 |
FR2489039B1 (fr) | 1984-10-19 |
GB2082382A (en) | 1982-03-03 |
JPS5755056A (en) | 1982-04-01 |
DE3131990C2 (fr) | 1992-07-02 |
NL185480C (nl) | 1991-01-16 |
NL8004726A (nl) | 1982-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: N.V. PHILIPS' GLOEILAMPENFABRIEKEN Effective date: 19930831 |