Abstract
IN his recent communication1, Hopkinson suggests that the relationship between M, the magnitude of brightness sensations, and L, the corresponding physical luminance, is M = kL 0.3 for dark-adaptation conditions; and M = kL for light-adaptation conditions.
Similar content being viewed by others
Article PDF
References
Hopkinson, R. G., Nature, 178, 1065 (1956).
Hunt, R. W. G., J. Photogr. Sci., 1, 149 (1953).
Craik, K. J. W., J. Physiol., 92, 406 (1938).
Craik, K. J. W., Proc. Roy. Soc., B, 128, 232 (1940).
Priest, I. G., Gibson, K. S., and McNicholas, H. J., U.S. Nat. Bur. Stand. Tech. Paper, 167, T 167 (1920).
Judd, D. B., “Colour in Business, Science, and Industry” (Wiley, New York, 1952).
Ladd, J. H., and Pinney, J. E., Proc. Inst. Rad. Eng., 43, 1137 (1955).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
HUNT, R. Light Energy and Brightness Sensation. Nature 179, 1026 (1957). https://doi.org/10.1038/1791026a0
Issue Date:
DOI: https://doi.org/10.1038/1791026a0
