A heat lamp is an electric heater consisting of a high-power incandescent lamp that emits infrared radiation. Heat lamps have a wide range of applications. Heat lamps are used on farms to keep young poultry or young pigs warm. Lights used for poultry are often called brooding lamps. Heat lamp assemblies arecombined with forced air systems for drying coated and printed materials. Infrared quartz tube heat lamps are evry efficient for drying the inks and coatings commonly used for printing, particularly high-quality, glossy printing work which involves relatively large amounts of ink and coatings and is done on paper which is generally not as absorbent as, for example, newsprint. Typical quartz tube heat lamp assemblies include reflectors which partially surround the quartz tubes and tube housings which include the electrical connections. In processing of integrated circuit devices, a long arc gas-discharge lamp is used for rapidly heating a semiconductor wafer. A heating lamp assembly for use with semiconductor reactors has a reflector assembly constructed of tubes joined together by heat conductive spacers to provide for water cooling of the reflector assembly.
