Title:
HIGH LUMINANCE DISCHARGE LAMP LIGHTING DEVICE AND LIGHTING SYSTEM
Document Type and Number:
Japanese Patent JP3835534
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a high luminance discharge lamp lighting device for stably lighting a high luminance discharge lamp.
SOLUTION: Inductors L2 and L3 saturate when starting glow discharge of the high luminance discharge lamp 8. When starting arc discharge of the high luminance discharge lamp 8, the inductors L2 and L3 start by supplying current of about several hundred mA for about 2 seconds in non-saturation states. When the high luminance discharge lamp 8 becomes a normal lighting state, an inverter circuit 22 is operated with a constant frequency of 46 kHz which almost coincides with a resonance frequency of a main circuit 23 at the time of non-load.
More Like This:
| JPH08330090 | DISCHARGE LAMP LIGHTING DEVICE |
| JP2010097839 | DISCHARGE LAMP LIGHTING DEVICE AND ILLUMINATION FIXTURE |
| JP2001128461 | POWER SUPPLY |
Inventors:
Kazutoshi Mita
Hideo Kozuka
Hideo Kozuka
Application Number:
JP2001392786A
Publication Date:
October 18, 2006
Filing Date:
December 25, 2001
Export Citation:
Assignee:
Toshiba Lighting & Technology Corporation
International Classes:
H05B41/24; H02M7/48; H02M7/538; H05B41/288; H05B41/292; (IPC1-7): H05B41/24; H02M7/48; H02M7/538
Domestic Patent References:
| JP4272692A | ||||
| JP5082277A | ||||
| JP5013185A | ||||
| JP60150591A | ||||
| JP2000286086A | ||||
| JP2000243590A | ||||
| JP2000195691A |
Foreign References:
| WO1999014991A1 |
Attorney, Agent or Firm:
樺澤 襄
Satoshi Kabazawa
Tetsuya Yamada
Satoshi Kabazawa
Tetsuya Yamada