A Spectroscopic Study of the Emission　from the Solid　（Part 4） : Directional Spectral Emittances of the Paint Coated Smooth and Rough Surfaces

摘要

Up to the present, the authors have carried out an analysis and a measurement for the directional total emittance and the normal spectral emittance of the paint coated smooth and rough surfaces. 　 In this paper, a spectral dependency of the emittance is researched by measuring the spectral emission in each direction on the paint coated smooth and rough surfaces, and the directional monochromatic emittance obtained from it on each wavelength is compared with the calculated value. All emissive properties of the paint coated smooth and rough surfaces have been made clear by this investigation.