GB8813736D0 - High intensity discharge lamp - Google Patents
High intensity discharge lampInfo
- Publication number
- GB8813736D0 GB8813736D0 GB888813736A GB8813736A GB8813736D0 GB 8813736 D0 GB8813736 D0 GB 8813736D0 GB 888813736 A GB888813736 A GB 888813736A GB 8813736 A GB8813736 A GB 8813736A GB 8813736 D0 GB8813736 D0 GB 8813736D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge lamp
- high intensity
- intensity discharge
- lamp
- intensity
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
- H01J61/827—Metal halide arc lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62144053A JP2526065B2 (en) | 1987-06-11 | 1987-06-11 | Discharge lamp |
JP62243956A JPH0787092B2 (en) | 1987-09-30 | 1987-09-30 | Metal halide lamp |
JP63042253A JPH01220361A (en) | 1988-02-26 | 1988-02-26 | Metal vapor discharge lamp |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8813736D0 true GB8813736D0 (en) | 1988-07-13 |
GB2206992A GB2206992A (en) | 1989-01-18 |
GB2206992B GB2206992B (en) | 1992-01-08 |
Family
ID=27291137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8813736A Expired - Lifetime GB2206992B (en) | 1987-06-11 | 1988-06-10 | High intensity discharge lamp of the one side sealed type capable of compensating for the change of luminous efficiency caused by its different lighting angl |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU604126B2 (en) |
CA (1) | CA1305996C (en) |
FR (1) | FR2616588A1 (en) |
GB (1) | GB2206992B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0762993B2 (en) * | 1987-09-21 | 1995-07-05 | 東芝ライテック株式会社 | Metal halide lamp |
US4998036A (en) * | 1987-12-17 | 1991-03-05 | Kabushiki Kaisha Toshiba | Metal vapor discharge lamp containing an arc tube with particular bulb structure |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB506824A (en) * | 1900-01-01 | |||
GB383165A (en) * | 1931-05-07 | 1932-11-10 | Gen Electric Co Ltd | Improvements in electric lamps |
GB639536A (en) * | 1946-04-17 | 1950-06-28 | Gen Electric Co Ltd | Improvements in and relating to mercury vapour lamps |
US3621322A (en) * | 1968-09-12 | 1971-11-16 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | High-pressure compact arc lamp with electrodes containing tantalum carbide |
NL178107C (en) * | 1977-12-23 | 1986-01-16 | Philips Nv | HIGH PRESSURE DISCHARGE LAMP. |
JPS563962A (en) * | 1979-06-22 | 1981-01-16 | Mitsubishi Electric Corp | High-pressure metal vapor discharge lamp |
US4342937A (en) * | 1980-02-12 | 1982-08-03 | Egyesult Izzolampa Es Villamossagi Rt. | Metal halogen vapor lamp provided with a heat reflecting layer |
US4321504A (en) * | 1980-03-24 | 1982-03-23 | Gte Products Corporation | Low wattage metal halide arc discharge lamp |
US4320322A (en) * | 1980-03-24 | 1982-03-16 | Gte Products Corporation | Electrode geometry to improve arc stability |
GB2103872A (en) * | 1981-07-22 | 1983-02-23 | Gen Electric Co Plc | Electric discharge lamp seals |
DE3232207A1 (en) * | 1982-08-30 | 1984-03-08 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | HIGH PRESSURE DISCHARGE LAMP WITH LOW POWER |
US4557700A (en) * | 1983-06-09 | 1985-12-10 | Gte Products Corporation | Metal halide discharge lamp gas fill process to provide minimal color separation |
DE3537872A1 (en) * | 1985-10-24 | 1987-04-30 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | HIGH PRESSURE DISCHARGE LAMP |
DE8623905U1 (en) * | 1986-09-05 | 1988-02-25 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München | High pressure discharge lamp |
JPH0762993B2 (en) * | 1987-09-21 | 1995-07-05 | 東芝ライテック株式会社 | Metal halide lamp |
-
1988
- 1988-06-09 AU AU17524/88A patent/AU604126B2/en not_active Ceased
- 1988-06-10 CA CA000569220A patent/CA1305996C/en not_active Expired - Lifetime
- 1988-06-10 FR FR8807814A patent/FR2616588A1/en not_active Withdrawn
- 1988-06-10 GB GB8813736A patent/GB2206992B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU604126B2 (en) | 1990-12-06 |
GB2206992B (en) | 1992-01-08 |
GB2206992A (en) | 1989-01-18 |
CA1305996C (en) | 1992-08-04 |
AU1752488A (en) | 1989-01-19 |
FR2616588A1 (en) | 1988-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940610 |