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1. (WO2017038171) OPTICAL MEMBER AND OPTICAL IRRADIATION DEVICE

Pub. No.:    WO/2017/038171    International Application No.:    PCT/JP2016/065592
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri May 27 01:59:59 CEST 2016
IPC: G02B 7/02
F21S 2/00
F21V 17/00
G02B 7/00
F21Y 115/10
Applicants: USHIO DENKI KABUSHIKI KAISHA
ウシオ電機株式会社
Inventors: MATSUSHIMA Takeo
松島 竹夫
OUCHI Yasuhiro
大内 保宏
Title: OPTICAL MEMBER AND OPTICAL IRRADIATION DEVICE
Abstract:
[Problem] To provide a structure such that the shearing of a bonding agent due to the difference between the linear expansion coefficients of a holder made of a metal material and an optical element can be prevented for an optical member in which the optical element is fixed to the holder with the bonding agent, while suitably maintaining the relative positional relationship between the optical element and the holder. [Solution] The bonding agent is filled in recesses formed in the flat surface of the holder onto which the optical element is mounted, and the bonding agent fixes the optical element to the holder.