| 摘要 |
PROBLEM TO BE SOLVED: To provide a reflecting mirror for light source device which can ensure insulating property against a voltage applied to a light source by solving the problem in a case in which a light source device using a reflecting mirror having a multilayer reflecting film formed on a concave surface of a glass substrate as a reflecting film becomes conductive due to deterioration of insulating property of the multilayer film of the reflecting mirror. SOLUTION: In this reflecting mirror for light source device which reflects light emitted by a light source and has an opening end portion which abuts on a metallic frame of the light source device, the reflecting film is formed so as not to adhere to the opening end part of the reflecting mirror which abuts on the metallic frame of the light source device. According to this, when the metallic frame of the light source device is allowed to abut on the reflecting mirror, the metallic frame is electrically insulated from the reflecting film formed on the concave reflecting surface. COPYRIGHT: (C)2007,JPO&INPIT
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