DISPOSITIF ET PROCEDE DE NUMERISATION POUR DETECTEURS PHOTOSENSIBLES ET PROCEDE DE LECTURE D'UNE MATRICE DE DETECTEURS PHOTONIQUES

摘要

The device includes an array of elementary points (PEL(i,j)) which allow the signal delivered by each photodetector to be read. The value processed is the charge and each elementary point performs pre-integration of a current delivered by the corresponding detector. An information processing chain includes a signal shaping device which reads the charge quantity and generates a pulse of current. The signals issued by the processing chain are multiplexed to at least one digital output. The photon detectors used in the device are selected from a group including quantum detectors and thermal detectors. They may be formed on a substrate which is separate from the reading substrate, or on the same substrate in a matrix of rows and columns.