Calentador electrico que incluye un conector electrico, un elemento calefactor, al menos un reflector adyacente al elemento calefactor y adaptado para reflejar la radiacion electromagnetica emitida, una cubierta adyacente al elemento calefactor, en donde la cubierta se encuentra colocada de manera que el elemento calefactor se encuentra dispuesto entre el primer lado y al menos un reflector; metodo.

摘要

An electric heater (10) includes at least one heater element (12) which is adapted to emit electromagnetic radiation (30) having a first wavelength. A reflector (16) adjacent the heater element reflects radiation from the element, the reflected radiation (32) also having the first wavelength. A portion of the emitted and reflected radiation intersects a heater cover (26), which re-emits that radiation such that the re-emitted radiation (36) has a second wavelength different to the first wavelength. The cover has a plurality of apertures (28) which allow passage of another portion of the incident electromagnetic radiation through the cover, that portion having the first wavelength.