Abstract

The nonlinearities of photographic film are such that saturation effects at high exposure levels can be compensated for by increased differential area effective exposure. This can be achieved by a properly formulated spatial distribution of exposing illumination, on a differential area basis. A balance between film saturation and spatial modulation permits the synthesis of specified differential area transmission characteristics, as a function of the amplitude of the exposing light. The average differential area transmission function synthesis problem is posed in integral equation form, and an approximate solution technique is presented. Restrictions by actual film properties on the function to be synthesized are presented in the form of easily applied estimates.

© 1978 Optical Society of America

Control of film characteristics by modulating intensity and space

George W. Batten and Robert L. Everett
J. Opt. Soc. Am. 68(8) 1118-1124 (1978)

Two-pupil synthesis of optical transfer functions

A. W. Lohmann and W. T. Rhodes
Appl. Opt. 17(7) 1141-1151 (1978)

Use of Fourier coefficients in multilayer synthesis computations

J. P. Borgogno and E. Pelletier
J. Opt. Soc. Am. 68(7) 964-972 (1978)

Evaporated films of arsenic trisulfide: Dependence of optical properties on light exposure and heat cycling*

Scott A. Keneman, Joseph Bordogna, and Jay N. Zemel
J. Opt. Soc. Am. 68(1) 32-38 (1978)

Investigations of errors in sample autocovariance functions and their corresponding power spectra*

S. A. Armstrong and P. T. Gough
J. Opt. Soc. Am. 68(5) 568-572 (1978)