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1. (WO2018138821) PHOTOIRRADIATION DEVICE, PHOTOIRRADIATION SYSTEM, ENDOSCOPE SYSTEM, AND MICROSCOPE

Pub. No.:    WO/2018/138821    International Application No.:    PCT/JP2017/002686
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Fri Jan 27 00:59:59 CET 2017
IPC: G02B 7/00
G02B 21/00
G02B 23/24
H01S 5/022
Applicants: OLYMPUS CORPORATION
オリンパス株式会社
Inventors: ASAOKA, Nobuyoshi
浅岡 延好
Title: PHOTOIRRADIATION DEVICE, PHOTOIRRADIATION SYSTEM, ENDOSCOPE SYSTEM, AND MICROSCOPE
Abstract:
A photoirradiation device (10) has: an optical element (20) for exhibiting desired optical performance on the basis of incident light incident in a desired position, the optical element (20) being retained in the desired position by a retaining unit (30); and a detection unit (50) for detecting the amount of positional offset of the optical element with respect to the desired position. The photoirradiation device (10) has a discrimination unit (71) for discriminating whether the photoirradiation device (10) is in a normal state in which the optical element (20) is disposed in the desired position and the desired optical performance is thereby exhibited, and an abnormal state in which the optical element (20) is disposed in a position offset from the desired position.