LIGHT STABILITY-TESTING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a light stability-testing apparatus that has a reliable signal transmission means that is stable for a long time and a signal transmission mechanism having a large degree of freedom of installation. SOLUTION: A photosensor 5 is rotatably provided at a sample stand 4 in a light stability-testing apparatus, and a signal from the photosensor 5 is transmitted to a control section by a conductor being mounted to the photosensor 5.