초록 ▼

A radiation source for infrared radiation includes an area radiator and a resistance layer which are arranged on a support substrate. The heat capacity of the radiation source is to be reduced to the extent that a modulation of the intensity of the radiation source with sufficiently high frequencies

A radiation source for infrared radiation includes an area radiator and a resistance layer which are arranged on a support substrate. The heat capacity of the radiation source is to be reduced to the extent that a modulation of the intensity of the radiation source with sufficiently high frequencies is made possible. To this end it is provided that the resistance layer is disposed in a thinned region of the support substrate.

대표청구항 ▼

A radiation source for infrared radiation comprising a support substrate made of material of high thermal conductivity and having top and bottom surfaces, said support substrate having a recess in at least one of said top and bottom surfaces forming a thin bridge region spanning said recess, an insu

A radiation source for infrared radiation comprising a support substrate made of material of high thermal conductivity and having top and bottom surfaces, said support substrate having a recess in at least one of said top and bottom surfaces forming a thin bridge region spanning said recess, an insulating layer on one of said top and bottom surfaces of said substrate, said insulating layer extending over said bridge region, and an electrically conductive track disposed on said insulating layer and extending over said bridge region, said track having opposite terminal contacts which are connectible to a source of pulsed current for heating said track to emit infrared radiation, said track being relatively easily heatable due to the relatively easily heatable thin bridge region compared to a remainder of said substrate.