真伪币可见荧光检验照相中胶片的选择

荧光照相是用来鉴别真币和假币的一种直接而快速的有效方法。在实际工作中,往往较为重视照明用的光源及用于分离和突出激发后发射的荧光的滤色片,而忽视了对胶片的选择。本文阐明了选择合适胶片的重要性,并总结了应遵循的原则。

Choice of photographic film for fluorographic inspection of true and counterfeit bank notes

Fluorography is a direct and quick method very efficient for the distinction of true and counterfeit bank notes. In practical work, people generally attached more importance to the light for illumination and filters for separating and stressing the emitted fluorescent radiation,but neglected the choice of photographic film. This paper points out the importance of choosing the proper type of photographic film used,and in light of practice,outlines the general rules to abide by.