Prism structure for flash illumination devices

Prismatic lighting panel

Prismatic reflector and prismatic lens

Prismatic structures having shaped surfaces

Process for the production of reflective elements of a light and

Projection illumination system for tricolor projectors

Projector attachment for ellipsoidal lamp

Projector light source and projection type image display...

Projector light source and projection type image display...

Protective overhead light fixture kit

Protective shield for ultraviolet lamps

Protective shutter system for energy source

Quadrilateral symmetrical light source

Quick engaging device for connecting lamp shade to...

Radar transparent materials

Radiation-pattern-matched light-diffusing pattern for light...

Rainbow creating device

Rainbow projection light

Rapid assembly and disassembly lamp shade structure

Readily assemblable lampshade, or the like