Light table
A light table is a viewing device that is used to review photographic film or artwork placed on top of it by providing an even illumination of the subject from underneath via a diffusing translucent cover placed over a fluorescent light. Some light tables are simply large light boxes placed atop some support, while others are large and complicated affairs, with stereoscopes integrated as a self-supporting unit, for example, those used by Tomcat TARPS squadrons for interpreting aerial photographs.