Emitter of infrared radiation in band III and composite allowing the emission of such radiation

摘要

The invention relates to an emitter of infrared radiation in band III as well as to a composite allowing the emission of such infrared radiation. The emitter includes an emission source having a composite on which a thin oxide layer is deposited. The oxide has an emissivity which is less than 0.2 for wavelengths of emitted radiation of less than 6 &mgr;m and greater than 0.8 for wavelengths of between 8 and 10 &mgr;m. The invention also includes a heating device which can heat the composite so that it emits infrared radiation in band III.