An introduction to the study of colour vision (1915)
Parsons, John Herbert, Sir, 1868-1957 · Cambridge [Eng.] University Press; New York, G. P. Putnam's Sons · leaf 76
ciatedwith a diminution in saturation. Those red rays which have little(620—670jUjLt) or no (beyond QTO/jl/jl) scotopic stimulus value, show nochange. The eftect of Purkinjes phenomenon is seen graphically in Fig. 18,where the abscissae represent intensities of red lights (670/x^) andthe ordinates… … 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Fig. 18. Curve of equivalent luminosities of red (670 /xfj.) and blue (450 fxfx) lights at difiFerentintensities (slit-widths). (Konig.) Although different colours alter their appearance on diminution oftheir intensity it might be thought that…
Color vision
Internet Archive · Biodiversity Heritage Library · Public Domain Mark 1.0. Free to use for anything.
