Advances in IR technology at Paris Observatory

The most recent projects in which the space research department of the Paris Observatory has participated are summarized. These include the Common User Near-Infrared CIRCUS (Camera Infrared Rouge Courtes longueurs d'onde pour Utilisation au Sol) camera, the adaptive optics COME-ON system, the High-Resolution Near-IR Camera for VLT, and the on-board IR 2D array camera of the ISO satellite, called ISOCAM. Technical characteristics and performance data for these instruments are listed.