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1. (WO2018221082) SPECTROPHOTOMETER

Pub. No.:    WO/2018/221082    International Application No.:    PCT/JP2018/016602
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed Apr 25 01:59:59 CEST 2018
IPC: G01J 3/10
G01N 21/27
Applicants: KONICA MINOLTA, INC.
コニカミノルタ株式会社
Inventors: KAWASAKI Takashi
川崎 貴志
FUJII Hidehiko
藤井 秀彦
TSURUTANI Katsutoshi
▲鶴▼谷 克敏
Title: SPECTROPHOTOMETER
Abstract:
The present invention allows a measurement position to be irradiated with observation light and allows the measurement position to be known easily, without providing a large space in a spectrophotometer. In this spectrophotometer, a slit is disposed at a position that is optically conjugated with the measurement position. Light from an object to be measured passes through the slit, advances in a measurement optical path, and undergoes wavelength dispersion by a wavelength dispersion element. At the time of measurement of an optical spectrum, an observation light source is retreated out of the measurement optical path. At the time of observation of the measurement position, the observation light source is inserted in the measurement optical path and emits observation light toward the slit. Alternately, light from the object to be measured passes through the slit and is diffracted by a diffraction grating. The observation light source is disposed on an optical path of the zeroth-order light. At the time of observation of the measurement position, the observation light source emits the observation light toward the diffraction grating.