Herschel effect

Herschel effect

[′hər·shəl i‚fekt]
(graphic arts)
The reaction whereby a photographic image on silver chloride is destroyed by exposure to red light. Also known as visual Herschel effect.
The reaction whereby a latent photographic image in gelatin emulsion which is not dye-sensitized is destroyed by exposure to red light. Also known as latent Herschel effect.