CPC Subgroup
G01J 1/58 using luminescence generated by light
Full Title
Photometry, e.g. photographic exposure meter (spectrophotometry G01J3/00; specially adapted for radiation pyrometry G01J5/00 ) > using luminescence generated by light
G01J 1/58 Photometry, e.g. photographic exposure meter (spectrophotometry G01J3/00; specially adapted for radiation pyrometry G01J5/00 ) > using luminescence generated by light