Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 93
e. In the case of theselenium Pfund has shown that therelative sensitiveness throughout thespectrum is utterly different in a weaklight from what it is in a strong illumina-tion—in this respect bearing a curiousresemblance to the Purkinje effect in thecase of the human eye. This is shownin the… … ERYTH ROSIN ETHYL REDPINACHROM DICYANIM Fiti. 3. — Showing differing sensitivenessthroughout the spectrum of various photo-graphic materials (Ives). tiveness identical with that of the eyewould present difficulties. Moreover,])hotography, although having certainai)plications, is in general a…
Lighting
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