| 发明名称 |
DISCHARGE LAMP LIGHTING DEVICE, DISCHARGE LAMP LIGHTING METHOD, AND PROJECTOR |
| 摘要 |
A discharge lamp lighting device according to an aspect of the invention includes a resonance circuit unit connected to a discharge lamp, a power converting unit configured to convert direct-current power into alternating-current power and supply the alternating-current power to the discharge lamp via the resonance circuit unit, and a control unit configured to supply the alternating-current power having a first frequency for causing resonance of the resonance circuit unit and a second frequency different from the first frequency, to the discharge lamp in a lighting start period from a start of lighting of the discharge lamp to a steady lighting state of the discharge. The second frequency is equal to or higher than 100 kHz. |
| 申请公布号 |
US2015192846(A1) |
申请公布日期 |
2015.07.09 |
| 申请号 |
US201414511722 |
申请日期 |
2014.10.10 |
| 申请人 |
SEIKO EPSON CORPORATION |
发明人 |
TERASHIMA Tetsuo;SAITO Osamu;NAKAJIMA Takeshi |
| 分类号 |
G03B21/20;H05B41/38;H05B41/28 |
主分类号 |
G03B21/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A discharge lamp lighting device comprising:
a resonance circuit unit connected to a discharge lamp; a power converting unit configured to convert direct-current power into alternating-current power and supply the alternating-current power to the discharge lamp via the resonance circuit unit; and a control unit configured to supply the alternating-current power having a first frequency for causing resonance of the resonance circuit unit and a second frequency different from the first frequency, to the discharge lamp in a lighting start period from a start of lighting of the discharge lamp to a steady lighting state of the discharge, wherein the second frequency is equal to or higher than 100 kHz. |
| 地址 |
Tokyo JP |
