Abstract

Kodak High-Speed Infrared Film Type 2481 HIE 421 was found to be less sensitive to photons in ruby-laser pulses (of duration 19–75 ns) than to photons from a conventional red light source. The ratio of the sensitivities varied smoothly with the optical density of the developed frame, ranging from about 1/3 at a density of 0.2 to about 1/30 at an optical density of 2.2. The data indicate that the photochemical law of reciprocity is not obeyed by this film over this range of exposure times.

© 1975 Optical Society of America

Attenuation of giant laser pulses by absorbing filters

Rory O. Rice and James D. Macomber
Appl. Opt. 14(9) 2203-2206 (1975)

Effect of nonuniform irradiance, and irradiance fluctuations, upon the response of photographic film

C. T. Chang and J. L. Bjorkstam
J. Opt. Soc. Am. 65(12) 1495-1501 (1975)

High-Intensity Reciprocity Failure in Kodak 649-F Plates at 6943 Å*

Michael Hercher and Bruce Ruff
J. Opt. Soc. Am. 57(1) 103-105 (1967)

Reciprocity Law Failure in Desensitized Emulsions*

Simpei Tutihasi
J. Opt. Soc. Am. 45(1) 15-18 (1955)

Large refractive-index change in PbI₂ films by photolysis at 150–180 °C*

A. B. Buckman, N. H. Hong, and D. Wilson
J. Opt. Soc. Am. 65(8) 914-918 (1975)