Both the apparent size and the apparent hue of a single spot of 6328 A laser light vary with with varying conditions, and with the particular observer. The apparent radius of a spot can vary from zero to several times the objectively-determined radius as the background lighting conditions are changed. The general features of this variation are predictable theoretically. The apparent hue of the center of a laser spot can shift as much as 340 A. Previous theory for the hue shift is shown to be inadequate, but no fully adequate theory is suggested.
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References
1.
BoyntonR. M.KandelG.OnleyJ. W.Rapid chromatic adaptation of normal and dichromatic observers.J. opt. Soc. Amer., 1959,49, 654
2.
GoldfisherL. I.Autocorrelation function and power spectral density of laser-produced speckle patterns.J. opt. Soc. Amer., 1965,55, 247
3.
JamesonD.HurvichL. M.Preserved color and its dependence on focal, surrounding, and preceding stimulus variables.J. opt. Soc. Amer., 1959,49, 890
4.
JuddD. B.Basic correlates of the visual stimulus. In StevensS. S. (Ed.), Handbook of experimental Psychology.New York: John Wiley & Sons, 1961. Chapter 22; pp 811–867
5.
LangmuirR. V.Scattering of laser light.Appl. Phys. Letters, 1963,2, 29
6.
OliverB. M.Sparkling spots and random diffraction.Proc. IEEE, 1963,51, 220
7.
RigdenJ. D.BloomA. (Discussion of paper by W. E. Bell, A. Bloom, and R. C. Rempel.) In GrivetP.BloembergenN. (Eds), Quantum electronics: III.New York: Columbia University Press, 1964. Volume 2, p. 1347
