| 20110262116 | INFRARED FILTER OF A LIGHT SOURCE FOR HEATING AN OBJECT - Infrared filler of a light source for healing an object The invention relates to an optical interface for transmitting at least some infrared rays emitted from at least one light source so as to heat an object above a threshold temperature, wherein the object stops to transmit and absorbs from an infrared wavelength threshold, the optical interface comprising: a substrate; an interference filter on the substrate having an infrared spectral transmission T exhibiting: a first portion in the near infrared with high T, a second portion in the far infrared with low T, and an intermediary portion between first and second portions, comprising a spectral transition between high T and low T, having T=50% at a wavelength λ | 10-27-2011 |
