Radiation suppression film, and radiation transmission suppression filter and imaging device using the radiation transmission suppression film

摘要

PROBLEM TO BE SOLVED: To provide a radiation transmission suppressing film capable of protecting a photographing device from radiation without adversely affecting the photographing performance of the photographing device. SOLUTION: The polyvinyl alcohol-based resin film 10 containing boric acid is contained, and the product of the boric acid content (% by weight) in the polyvinyl alcohol-based resin film 10 and the thickness (μm) of the polyvinyl alcohol-based resin film 10 is , 500 or more, radiation transmission suppressing film 100. [Selection diagram] Fig. 1