Title:
放電ランプ装置
Document Type and Number:
Japanese Patent JP4396752
Kind Code:
B2
Abstract:
Provided is a discharge lamp device, which is sufficiently to be used to generate a high power with high temperature output and sufficiently to compensate for electrode wear. The present invention is to provide the means to dispose a pair of electrodes (2, 3) on the opposite of the inner surface of the discharge lamp inner 10, and includes a measuring means 30 for monitoring the lighting status of the discharge lamp inner 10 which is characterized in that the electrode wear of the lamp inner 10 can be to detected the light that exposes the heat induction M from the inside.
Inventors:
Yoshinori Aiura
Yuro Kagebayashi
Go Yamada
Yuro Kagebayashi
Go Yamada
Application Number:
JP2007254074A
Publication Date:
January 13, 2010
Filing Date:
September 28, 2007
Export Citation:
Assignee:
Ushio, Inc.
International Classes:
F21V23/00; G03F7/20; H01J61/073; H01L21/027; F21Y101/00
Domestic Patent References:
| JP2001075177A | ||||
| JP2004006246A |