CAPTEUR AVERTISSEUR DE LASER

• Main Authors: THORSTEINN HALLDORSSON ET ERNST.-A. SEIFFARTH, HALLDORSSON THORSTEINN, SEIFFARTH ERNST-A
• Format: Patent
• Language: French
• Published: 17.10.1986
• Edition: 4
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

DISPOSITIF POUR DECELER UN RAYONNEMENT OPTIQUE, NOTAMMENT UN RAYONNEMENT LASER, ET EN DETECTER LA DIRECTION. CE DISPOSITIF PRESENTE PLUSIEURS DIRECTIONS D'OBSERVATION AVEC DES OPTIQUES D'ENTREE A CHACUNE DESQUELLES EST AFFECTE UN TRAJET OPTIQUE ALLANT A UNDETECTEUR 11 DONT LES SIGNAUX SONT TRAITES PAR UN CIRCUIT 12. DES MOYENS DE POLARISATION FIXENT, POUR CHAQUE TRAJET OPTIQUE, UNE DIRECTION DE POLARISATION P1, P2, PN SPECIFIQUE DIFFERANT DE CELLES PROPRES AUX AUTRES TRAJETS OPTIQUES. LE DETECTEUR 11 EST UN POLARIMETRE ET LE CIRCUIT 12 DETERMINE LA DIRECTION DU RAYONNEMENT LASER INCIDENT, EN FONCTION DE LA DIRECTION DE POLARISATION DEFINIE A L'AIDE DU POLARIMETRE 11. A device for the recognition and directional detection of optical radiation, especially laser radiation, i.e., a so-called laser warning sensor. The laser warning sensor comprises several optical input systems to which a light guide path leading to a detector is assigned. In the individual light guide paths, polarizing devices for the linear polarization of the incident optical radiation are provided which determine for each light guide path at its end facing the detector, a specific direction of polarization which is different from the direction of polarization of the other light guide paths. The radiation leaving the ends of the light guide paths combined in a bundle is conducted to a detector designed as a polarimeter. From the direction of polarization determined in the polarimeter, the direction of the incident laser radiation is determined in an evaluation circuit.