The ITO powder has a minimum value of a diffused reflection functional logarithm, logf, at {TAIL ~ a light wavelength} of 470 nm or lower, which logarithm is measured on the basis of the following equation, f=2/2Rd=α/S (Rd: a relative reflectance to a standard sample, α: an absorption coefficient, S: a scattering coefficient, formulated for a diffused reflection light, and the minimum value of {HEAD ~ −0.1} or less 
The ITO powder has a minimum value of a diffused reflection functional logarithm , logf , at { TAIL ~ a light wavelength } of 470 nm or lower , which logarithm is measured on the basis of the following equation , f=2/2Rd = α / S ( Rd : a relative reflectance to a standard sample , α : an absorption coefficient , S : a scattering coefficient , formulated for a diffused reflection light , and the minimum value of { HEAD ~ −0.1 } or less
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH