Title:
LIGHT SOURCE DEVICE AND STERILIZATION DEODORIZER
Document Type and Number:
WIPO Patent Application WO/2022/054799
Kind Code:
A1
Abstract:
Provided is a new light source device using an excimer lamp, in particular, a light source device for sterilization and deodorization. The light source device comprises: an excimer lamp (1); and a flyback-type lighting device which supplies power to the excimer lamp. The lighting device includes a transformer (2), a switching element (4), and a control circuit (5) which supplies a drive signal to the switching element (4). The control circuit (5) controls the switching element (4) to be on and off such that a switching frequency (FS) for the switching element (4) at the start of lighting is lower than a switching frequency (FO) at the time of steady lighting, and the on-duty (TS) for the switching element (4) at the start of lighting becomes a smaller value than the on-duty (TO) at the time of steady lighting.
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Inventors:
ODA KOJI (JP)
ASAYAMA JUNYA (JP)
ASAYAMA JUNYA (JP)
Application Number:
PCT/JP2021/032868
Publication Date:
March 17, 2022
Filing Date:
September 07, 2021
Export Citation:
Assignee:
USHIO ELECTRIC INC (JP)
International Classes:
H05B41/24; A61L9/20; B01J19/12; H01J61/30; H01J65/00; H01J65/04
Foreign References:
| JP2020047527A | 2020-03-26 | |||
| JP2001257093A | 2001-09-21 | |||
| JP2020011856A | 2020-01-23 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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