Layer store for recording HF signals

摘要

Film store. Consists of a support and an active storage film, for recording h.f. signals by colour change of spiropyranes when illuminated. The storage film contains in addition to spiropyranes a substance dissociated by the recording beam into radicals, and a film binder. A cover layer is provided on at least one side of the film which retards prevents the diffusion of HX molecules present in the film.