Patent ID: 8197095

Claim:
A radiation filter device comprising: a first planar radiation filter part, defining a plane extending in a first direction, and reflecting incoming radiation in a second direction that is based on said first direction; a second planar radiation filter part, defining a plane extending in a third direction different than said first or second directions, and reflecting radiation in a different direction than either said third direction or said second direction, said second planar radiation part coupled to said first radiation part, and forming an integral structure therewith, where each of the first and second planar radiation filter parts have ultra-violet and infra-red filtering characteristics, and where both of said first and second planar radiation parts have identical amounts of said ultra-violet and infra-red filtering characteristics, and allowing ultra-violet and infra-red filtered light to pass through said filter parts; a lamp emitting light, and inner surfaces defining a hole at an apex of the wedge, where said apex faces said lamp to be illuminated by said lamp in a way that light from said lamp passes through said apex, and said hole is at an area of a shadow created by said lamp in a direction of facing.