LIGHT COLLECTING SYSTEM HAVING HEAT RESISTANCE

摘要

PROBLEM TO BE SOLVED: To provide an optical measurement device and spectroscopic measurement device having a light collecting system that has heat resistance and allows adjustment of the optical axis.SOLUTION: All components of a light collecting system usable under a high temperature environment are made of heat resistant materials. In order to prevent deformation or the like at a high temperature, a heat resistant screw 6 for tilt adjustment, a heat resistant spring 8 for tilt adjustment, and a heat-resistant position adjustment mechanism are provided.