Patent ID: 9063050
Filing Date: 2015-06-23
Classification: G01N

Abstract:
1. A weathering test instrument, comprising: a light source section including a plurality of solid-state light-emitting elements, the solid-state light-emitting elements being different in kind from one another, and being configured to emit light beams having respective wavelength regions that are different from one another; a light receptor including a plurality of light-receiving sensors configured to receive the light beams radiated from the light source section individually for the respective wavelength regions, each of the light-receiving sensors corresponding to a respective one of the solid-state light-emitting elements; and a controller configured to control radiant intensities of the respective solid-state light-emitting elements individually, based on received light amounts for the respective wavelength regions derived from the light receptor to maintain a spectral irradiance distribution set in the light source section using feedback control based on the received light amounts to generate corresponding control signals for each of the solid-state light-emitting elements, and thereby control irradiance at a sample surface for each of the wavelength regions to allow an accelerated test of a sample to be performed.