Title:
LIGHT SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/049882
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a light source device that is configured from a lighting circuit and an ultraviolet radiation lamp which emits light via dielectric barrier discharge, and that has a novel structure. 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 arc tube (11) in which light emission gas including at least halogen gas is sealed, and a pair of electrodes (12, 13) which are disposed inside the arc tube (11) such that discharge plasma (14) is generated in the direction in which the arc tube (11) extends; and the lighting circuit (S) constitutes a flyback circuit and controls the width (W) of pulse voltage applied to the electrodes to be not more than 1000 ns.
Inventors:
FUKUDA MINORU (JP)
Application Number:
PCT/JP2021/025129
Publication Date:
March 10, 2022
Filing Date:
July 02, 2021
Export Citation:
Assignee:
USHIO ELECTRIC INC (JP)
International Classes:
H01J65/00; H01J61/16; H01J61/40; H05B41/34
Foreign References:
| JP2020099524A | 2020-07-02 | |||
| JP2000243591A | 2000-09-08 | |||
| JP2009195825A | 2009-09-03 | |||
| JP2007242363A | 2007-09-20 | |||
| JP6025756B2 | 2016-11-16 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
Download PDF:
Previous Patent: LIQUID LEVEL DETECTION UNIT FOR DRAINAGE EQUIPMENT
Next Patent: BONDING DEVICE, REPAIRING DEVICE AND REPAIRING METHOD
Next Patent: BONDING DEVICE, REPAIRING DEVICE AND REPAIRING METHOD