Apparatus for the Study of Spectral Response of Photoelectric Surface

概要

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An optical instrument was designed which measures the photoelectricity for the visible wavelength region rapidly and accurately. The output from a monochromator is kept constant for a long time. The monochromatic beam emerging from it is split into two beams, One of which is brought to focus on a thermocouple alternately with The other white beams coming from a reference ljght source of wellstabilized brightness. Difference in intensity between these monochromatic and white beanls generates ac signal which drives the optical attenuator in front of the entrance slit of the monochromator until their intensities are brought into balance. The other monochromatic beam is fallen upon a photoelectric surface, spectral response of which is recorded automatically.
社団法人日本物理学会の論文
1956-03-05