ON THE VISIBILITY OF RADIATION AT THE HUMAN FOVEA
Open Access
- 20 September 1950
- journal article
- review article
- Published by Rockefeller University Press in The Journal of general physiology
- Vol. 34 (1), 87-136
- https://doi.org/10.1085/jgp.34.1.87
Abstract
1. Seeing-frequency functions (ψ[S]) determined uniocularly for small (1.6'), brief images at the thoroughly dark-adapted human central fovea take the form of log-Gaussian integrals, for intensity or for exposure-time as the independent variable. They cannot be of Poisson type, since mean (τ') and standard deviation (σ) are quite independently modifiable.Keywords
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