Absolute Photopic Sensitivity of the Eye in the Ultra-violet and in the Visible Spectrum


IN a paper published in 19411, measurements of photopic and scotopic sensitivity were given; nine observers were used, after one hour adaptation to the dark, according to the method of colour appearance. These measurements were made in the range between the mercury lines 709 and 302 mμ. In this paper I am considering the question of absolute photopic sensitivity, as the inverse of the illumination of the retina Pλ = 1/Jλ.

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  1. 1

    Pinegin, N. I., C.R. Acad. Sci. URSS., 30, 3 (1941).

  2. 2

    Goodeve, C. F., Lythgoe, R. J., and Schneider, E. E., Proc. Roy. Soc., B, 130, 392 (1942).

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