(under subclass 407) Subject matter wherein the radiant heater includes means for producing intense electromagnetic radiation in a converging pattern to a limited or well-defined area of an object, e.g., point or line, etc.
SEE OR SEARCH CLASS
126, Stoves and Furnaces,
683, and 684+ for concentrating reflector; subclasses 683 and 698+ for concentrating lens; and subclasses 680+ for energy concentrator with support for material heated.
607, Surgery: Light, Thermal, and Electrical Application,