Picture lighting master/museum frame providing near isotropic illumination of the artwork

摘要

A master/museum picture frame containing integral lighting and a light director (1) in accordance with Snell's law of Total Internal Reflection and Refraction By a Prism. Said lights, wired in series with a resistance wire parallel to the filament on the lights dumet, in accordance with the Shunt Theory, such that if one light burns out the remainder remain lighted, to present the artwork in the most favorable manner for the longest period of time when viewed in a depreciating environment. The master/museum frame is interchangeable, both forward and backward. with the capability of being used as a lighted frame or an unlighted frame by substituting a spacer in place of the light director and vice versa as shown in FIG. 3 and FIG. 4.