FR2344961B1 - - Google Patents
Info
- Publication number
- FR2344961B1 FR2344961B1 FR7707687A FR7707687A FR2344961B1 FR 2344961 B1 FR2344961 B1 FR 2344961B1 FR 7707687 A FR7707687 A FR 7707687A FR 7707687 A FR7707687 A FR 7707687A FR 2344961 B1 FR2344961 B1 FR 2344961B1
- 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
- H01J61/38—Devices for influencing the colour or wavelength of the light
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3019076A JPS52113580A (en) | 1976-03-19 | 1976-03-19 | High pressure metal vapor discharge apparatus |
| JP11342976A JPS5338176A (en) | 1976-09-20 | 1976-09-20 | High pressure metal vapor discharge apparatus |
| JP11343276A JPS5338179A (en) | 1976-09-20 | 1976-09-20 | High pressure metal vapor discharge apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2344961A1 FR2344961A1 (fr) | 1977-10-14 |
| FR2344961B1 true FR2344961B1 (US06573293-20030603-C00184.png) | 1981-05-08 |
Family
ID=27286872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7707687A Granted FR2344961A1 (fr) | 1976-03-19 | 1977-03-15 | Lampe a decharge a vapeur de sodium haute pression |
Country Status (5)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL179855C (nl) * | 1978-02-22 | 1986-11-17 | Philips Nv | Hogedruknatriumdampontladingslamp. |
| US4197480A (en) * | 1978-09-11 | 1980-04-08 | Westinghouse Electric Corp. | Reflector-type hid sodium vapor lamp unit with dichroic reflector |
| US4527097A (en) * | 1982-05-10 | 1985-07-02 | U.S. Philips Corporation | High-pressure sodium discharge lamp |
| US4580075A (en) * | 1982-11-26 | 1986-04-01 | General Electric Company | High pressure sodium lamp having improved coloring rendition |
| GB2145557B (en) * | 1983-08-13 | 1987-05-07 | Emi Plc Thorn | Improvements in discharge lamps |
| US5079473A (en) * | 1989-09-08 | 1992-01-07 | John F. Waymouth Intellectual Property And Education Trust | Optical light source device |
| JP2001110367A (ja) * | 1999-10-06 | 2001-04-20 | Ushio Inc | 白熱ランプ |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE518015C (de) * | 1929-07-12 | 1931-02-11 | Patra Patent Treuhand | Elektrische Leuchtroehre |
| BE631753A (US06573293-20030603-C00184.png) * | 1962-05-02 | |||
| DE1496658B2 (de) * | 1963-06-25 | 1971-12-09 | Saale-Glas GmbH, χ 6900 Jena | Waermeabsorbierendes witterungsbestaendiges phosphatglas |
| DE1260627B (de) * | 1965-11-13 | 1968-02-08 | Philips Nv | Natriumdampfentladungslampe |
| US3898504A (en) * | 1970-12-09 | 1975-08-05 | Matsushita Electronics Corp | High pressure metal vapor discharge lamp |
| JPS5034871B1 (US06573293-20030603-C00184.png) * | 1970-12-09 | 1975-11-12 | ||
| DD105937A1 (US06573293-20030603-C00184.png) * | 1973-09-06 | 1974-05-12 | ||
| US3931536A (en) * | 1974-07-15 | 1976-01-06 | Gte Sylvania Incorporated | Efficiency arc discharge lamp |
-
1977
- 1977-03-14 US US05/777,149 patent/US4109175A/en not_active Expired - Lifetime
- 1977-03-15 FR FR7707687A patent/FR2344961A1/fr active Granted
- 1977-03-17 GB GB11369/77A patent/GB1569366A/en not_active Expired
- 1977-03-17 DE DE2711733A patent/DE2711733C2/de not_active Expired
- 1977-03-18 CA CA274,268A patent/CA1064566A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2711733C2 (de) | 1985-08-08 |
| FR2344961A1 (fr) | 1977-10-14 |
| GB1569366A (en) | 1980-06-11 |
| US4109175A (en) | 1978-08-22 |
| CA1064566A (en) | 1979-10-16 |
| DE2711733A1 (de) | 1977-09-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| D6 | Patent endorsed licences of rights | ||
| ST | Notification of lapse |