CPC Subgroup
G01J 3/50 using electric radiation detectors
Full Title
Spectrometry; Spectrophotometry; Monochromators; Measuring colours > Measurement of colour; Colour measuring devices, e.g. colorimeters (measuring colour temperature G01J5/60) > using electric radiation detectors
9 direct subcodes
Child Classifications
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- G01J 3/51 using colour filters