| 发明名称 |
LIGHT SOURCE APPARATUS, DISCHARGE LAMP DRIVING METHOD, AND PROJECTOR |
| 摘要 |
In at least one embodiment, a light source apparatus includes a discharge lamp with a pair of electrodes and a driving unit that supplies a driving current to the pair of electrodes. The driving unit includes an AC supplier that supplies an alternating current to the pair of electrodes and a DC supplier that supplies a direct current to the pair of electrodes. The AC supplier is configured to alternately repeat an AC supply section in which the alternating current is supplied and an AC stop section in which the supply of the alternating current is stopped. The DC supplier is configured to supply the direct current during a period corresponding to the AC stop section. A frequency of the direct current is not lower than 10 Hz and not higher than 1 kHz. |
| 申请公布号 |
US2014226135(A1) |
申请公布日期 |
2014.08.14 |
| 申请号 |
US201414257427 |
申请日期 |
2014.04.21 |
| 申请人 |
Seiko Epson Corporation |
发明人 |
Suzuki Junichi;Kito Satoshi |
| 分类号 |
H05B41/36;G03B21/20 |
主分类号 |
H05B41/36 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A light source apparatus comprising:
a discharge lamp including a pair of electrodes; and a driving unit that supplies a driving current to the pair of electrodes, wherein the driving unit includes an AC supplier that supplies an alternating current to the pair of electrodes and a DC supplier that supplies a direct current to the pair of electrodes, the AC supplier is configured so as to alternately repeat an AC supply section in which the alternating current is supplied and an AC stop section in which the supply of the alternating current is stopped, the DC supplier is configured so as to supply the direct current during a period corresponding to the AC stop section, and a frequency of the direct current is not lower than 10 Hz and not higher than 1 kHz. |
| 地址 |
Tokyo JP |
