Title:
LIGHT SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/162346
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a light source device that has a novel structure and that is configured from a lighting circuit and an ultraviolet radiation lamp which emits light via dielectric barrier discharge. The present invention is configured from an ultraviolet radiation lamp (1) and a lighting circuit (S). The present invention is characterized in that: the lamp (1) has a substantially rod-shaped light emission tube (11) in which light emission gas including at least a halogen gas is sealed, and a pair of electrodes (12, 13) disposed inside the light emission tube (11) such that discharge plasma (14) is generated in the direction in which the light emission tube (11) extends; and the lighting circuit (S) constitutes a flyback circuit and controls the width of pulse voltage applied to the electrodes to be 450-1000 ns.
Inventors:
FUKUDA MINORU (JP)
Application Number:
PCT/JP2022/040587
Publication Date:
August 31, 2023
Filing Date:
October 31, 2022
Export Citation:
Assignee:
USHIO ELECTRIC INC (JP)
International Classes:
H05B41/30; A61L2/10; H01J61/10; H01J61/16; H01J61/40; H01J65/00
Domestic Patent References:
| WO2007049595A1 | 2007-05-03 |
Foreign References:
| JP2015072881A | 2015-04-16 | |||
| JP2020099524A | 2020-07-02 |
Attorney, Agent or Firm:
KIMURA Masayoshi (JP)
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