Abstract
The basic idea of photographic masking is discussed, and two new methods for producing such masks are described. The conditions necessary to justify application of modulation transfer theory to the process are specified, and the theory is applied to demonstrate that it is possible to obtain a modulation transfer function greater than unity for a band of spatial frequencies. Experimental verification is described.
© 1965 Optical Society of America
Full Article | PDF ArticleMore Like This
M. E. Rabedeau and A. D. Bates
Appl. Opt. 4(4) 439-443 (1965)
J. D. Armitage and A. W. Lohmann
Appl. Opt. 4(4) 461-467 (1965)
H. A. W. Schober and R. Hilz
J. Opt. Soc. Am. 55(9) 1086-1091 (1965)