Evaluation method of the spread material and the spread material, combination method of the particulate in the spread material and production method of the spread material

摘要

Change quantity x of the chromaticity where the entire scattering cross section S inside the spread material _total () it seeks the scattering cross section S of the individual particulate which is furthermore required from Mie theory vis-a-vis the wave length of incident light to the spread material which makes the particulate of the plural types disperse which have the refractive index differing in the basic material, concerning everything of the particulate of plural types () as a sum total, attenuation factor C () of strength of the light from now on in the spread material it seeks, incident light to the spread material calculates change quantity x of chromaticity of coming out light firing and y making use of this, is obtained and yIt is appraised with the evaluation method and this evaluation method of the spread material which appraises the diffusing power of the spread material of making use it offers the combination method of the particulate to the spread material in order to obtain the spread material and this kind of spread material which can eject the illumination light which does not have wave length unevenness and the production method of the spread material.