High-type transmission test

ProductDescription:Measuringthespectraltransmittanceofvariousmaterials,spectralreflectance,colorcoordinates,color,hue,white,yellowandsoon.ProductConfi

Fast-type projection test

ProductDescription:Measuringthespectraltransmittanceofvariousmaterials,spectralreflectance,colorcoordinates,color,hue,white,yellowandsoon.ProductConfi