The Equation of the Characteristic Curve of Photographic Emulsions
- 1 February 1953
- journal article
- research article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 7 (1) , 24-34
- https://doi.org/10.1366/000370253774634946
Abstract
A general equation has been derived for the characteristic curve for the spectrographic level of illumination. This equation is relatively simple, fits the experimental curve very well, and although applied to only three types of emulsions so far, is believed to be applicable to most emulsions. This equation is log10D8/D= (I10/I)n (t10/t)q where D and D8 are density and saturation density, respectively; I and t are intensity and time, respectively; I10, t10, n and q are constants. D8, I10, n and q are all parameters of emulsion, wavelength and development.Keywords
This publication has 4 references indexed in Scilit:
- Quantum Theory of Exposure Tested Extensively on Photographic Emulsions*Journal of the Optical Society of America, 1945
- Uniform Representation of the Characteristic Curves of Pure Silver Bromide Emulsions, Unsensitized and Sensitized†Journal of the Optical Society of America, 1942
- Graphical Analysis of Photographic Exposure and a New Theoretical Formulation of the H and D Curve*Journal of the Optical Society of America, 1939
- Law of the geometric mean as a sensitometric functionJournal of the Franklin Institute, 1934