Light-handleable photographic materials

Claim 1

Ultraviolet radiation sensitive photographic film material comprising: 1. a base, 2. at least one layer adjacent to said base comprising a photographic silver halide emulsion, and 3. a yellow filter dye layer adjacent to and over said at least one emulsion layer, the silver halide in said silver halide emulsion comprising at least 50 mole % silver chloride and the remainder comprising silver bromide and silver iodide whereby the emulsion has a high natural sensitivity to ultra violet radiation and a low visible light sensitivity, said yellow filter dye layer having an optical density of no more than 0.3 between 250 and 380 nm, an optical density which increases from 380 to 420 nm to at least 1.0, and an optical density above 400 nm which proportionately does not decrease any faster with increasing wavelengths than does the log. sensitivity of said silver halide emulsion, and said film material having a sensitivity to radiation such that upon image-wise exposure to radiation of 460 to 520 nm and development for 21/2 minutes at 20° C. in a developer comprising: ______________________________________ methyl-p-aminophenol sulfate 2.2 g hydroquinone 8.8 g sodium carbonate 48.0 g sodium sulfite 72.0 g potassium bromide 4.0 g hexametaphosphate 2.2 g distilled water to 1000 ml ______________________________________ followed by conventional rinsing, fixing, and drying, gives an optical density of no more than 0.1 above chemical fog plus base, where said image-wise exposure is to 0.2 erg/mm 2 of an equienergy spectrum light restricted to a wavelength band of 460 to 520 nm.