Patent ID: 7742155
Filing Date: 2010-06-22
Classification: G01N,G02B

Abstract:
1. A diffusion material comprising: a matrix having a refractive index; and multiple kinds of fine particles, each kind of which has another refractive index different from said refractive index of said matrix, dispersed in said matrix in accordance with blending amounts, said blending amounts of said multiple kinds of fine particles being determined by determining a light intensity attenuating rate C(λ) in said diffusion material so that chromaticity variations Δx and Δy of emitted light outgoing from said diffusion material with respect to incident light entering said diffusion material satisfy the following expression (9), respectively, determining a total cross-sectional area of scattering S determining said blending amounts of said multiple kinds of fine particles dispersed in said matrix so that said total cross-sectional area of scattering S