Intensification of the Latent (or Developable) Image

Abstract

IT was shown recently by Wightman, Trivelli, and Sheppard (of the Research Laboratory of the Eastman Kodak Company) that when single-layer plates were given a very short exposure to light and then treated with a very dilute solution of hydrogen peroxide, that the resulting developability was greater than the sum of the two separate effects. It was suggested that a part of the light-exposure effect was undevelopable, and that the peroxide, besides producing its own developable image, carried over the undevelopable part of the other into the developable condition. This is the phenomenon that is called the “intensification of the latent image.”