JPS4939980A - - Google Patents
Info
- Publication number
- JPS4939980A JPS4939980A JP47085030A JP8503072A JPS4939980A JP S4939980 A JPS4939980 A JP S4939980A JP 47085030 A JP47085030 A JP 47085030A JP 8503072 A JP8503072 A JP 8503072A JP S4939980 A JPS4939980 A JP S4939980A
- Authority
- JP
- Japan
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/16—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch
- H05B41/23—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
- H05B41/232—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8503072A JPS555674B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-08-25 | 1972-08-25 | |
| US00310131A US3781597A (en) | 1972-08-25 | 1972-11-28 | Lighting device for a discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8503072A JPS555674B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-08-25 | 1972-08-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4939980A true JPS4939980A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-04-15 |
| JPS555674B2 JPS555674B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-02-08 |
Family
ID=13847298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8503072A Expired JPS555674B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-08-25 | 1972-08-25 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3781597A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
| JP (1) | JPS555674B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58117684A (ja) * | 1981-12-29 | 1983-07-13 | 松下電工株式会社 | 放電灯点灯回路 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7402779A (nl) * | 1974-03-01 | 1975-09-03 | Philips Nv | Inrichting voorzien van een gas- en/of damp- ontladingslamp. |
| GB1528910A (en) * | 1974-12-11 | 1978-10-18 | Thorn Electrical Ind Ltd | Discharge lamp ballast circuits |
| US4642526A (en) * | 1984-09-14 | 1987-02-10 | Angstrom Robotics & Technologies, Inc. | Fluorescent object recognition system having self-modulated light source |
-
1972
- 1972-08-25 JP JP8503072A patent/JPS555674B2/ja not_active Expired
- 1972-11-28 US US00310131A patent/US3781597A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58117684A (ja) * | 1981-12-29 | 1983-07-13 | 松下電工株式会社 | 放電灯点灯回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| US3781597A (en) | 1973-12-25 |
| JPS555674B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-02-08 |