Title:
A drive method and a projector of light equipment and an electric discharge lamp
Document Type and Number:
Japanese Patent JP6055170
Kind Code:
B2
Abstract:
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.
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Inventors:
Junichi Suzuki
Satoshi Kito
Satoshi Kito
Application Number:
JP2011133456A
Publication Date:
December 27, 2016
Filing Date:
June 15, 2011
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
H05B41/24; G03B21/14
Domestic Patent References:
| JP201123154A | ||||
| JP2010251038A | ||||
| JP60148084A | ||||
| JP2003133091A | ||||
| JP20113486A | ||||
| JP200926747A | ||||
| JP2010123478A |
Attorney, Agent or Firm:
Tatsuya Masuda
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