Patent ID: 7943904

Claim:
A bispectral detector of an electromagnetic radiation, particularly of an infrared radiation and a visible radiation, comprising: an enclosure with a face for receiving said electromagnetic radiation; a bispectral detection device placed within the enclosure, and comprising a monolithic substrate, an array of bolometric micro-bridges sensitive to infrared radiation, the bolometric micro-bridges being suspended over a first face of the substrate by support and connection arms, and an array of photoelectric elements formed in the substrate, and sensitive to visible radiation, wherein the bolometric micro-bridges and the photoelectric elements are stacked, wherein a substrate portion between the array of photoelectric elements and a second face of the substrate, opposite to the first face thereof, is thinned so that the photoelectric elements can detect a visible radiation incident on the second face, and wherein said device is arranged so that at least some of a radiation incident on said face of the enclosure is incident on one of said array of bolometric micro-bridges and said array of photoelectric elements; and optical means arranged in the enclosure and capable of directing and focusing on the other one of said array of bolometric micro-bridges and said array of photoelectric elements at least some of said radiation incident on said face of the enclosure only along an optical path that does not pass through said device.