Patent ID: 8592780
Filing Date: 2013-11-26
Classification: G01N

Abstract:
1. A quantum-yield measurement device for measuring a quantum yield of a sample by irradiating a sample container of a sample cell for containing the sample with pumping light and detecting light to be measured emitted from at least one of the sample and sample container, the device comprising: a dark box configured to arrange therein the sample container; a light generation unit, having a light exit part connected to the dark box, configured to generate the pumping light; a light detection unit, having a light entrance part connected to the dark box, configured to detect the light to be measured; an integrating sphere, arranged within the dark box, having a light entrance opening for the pumping light to enter and a light exit opening for the light to be measured to exit; and a movement mechanism configured to move the integrating sphere such that the sample container attains each of a first state of being located inside of the integrating sphere and a second state of being located outside of the integrating sphere, and to cause the light entrance opening to oppose the light exit part and causing the light exit opening to oppose the light entrance part, in the first state.