The invention describes an article of manufacture that comprises an
optimized phosphorescent laminate structure that produces much brighter
light than previously disclosed phosphorescent laminates or coatings by
enabling and capturing multiple emissions and reflections of light
emitted by phosphorescent particles that are distributed through the
thickness of a transparent layer. These multiple emissions are enabled by
providing a transparent carrier layer that is many times as thick as the
phosphorescent powder particle size. That layer is loaded with an amount
of phosphorescent powder that is low enough to allow light emitted by the
deeper layers of powder to escape, but high enough to provide a very
large amount of emitting powder. This structure may be protected by
surface films and backed by a reflective layer for efficient
unidirectional light absorption and emission.