Mees, C. E. Kenneth (Charles Edward Kenneth), 1882-1960, Newton, A. J · Croydon, Wratten & Wainwright · leaf 29
Cotoured Eight of the Eye AND OF Photographic Prates WE have seen that the eye distinguishes light of different wave lengths by the production of an appearance of colour, i.e. a ray of light containing waves of a length of 4600 of our units would be called violet, and would be said to be of a… … ^,000 5,000 GOOO XOOO Fig. 9 ceive at all waves below 4000 units, i.e. what is known as ultra-violet light ; neither can it perceive rays which are above 7000 units, so that to these we must regard the eye as insensitive. The eye is very little sensitive to the extreme violet rays between 4000 and…
Photography · Color photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
