IR DETECTOR Russian patent published in 2005 - IPC

FIELD: photosensitive devices for detection of electromagnetic radiation.

SUBSTANCE: IR detector has cryostat inside which the chip with photosensitive detector and multiplexer are disposed onto cooled holder. Multiplexer has control, supply and processing outputs connected control, supply and processing units disposed outside the cryostat. Multiplexer is provided with photoconverters which have control outputs connected. The outputs are made in form of fiber light-guides which are connected to light-guides mounted inside control unit. Light-guide can be also only single. Ends of light-guide are provided with optical multiplexer being connected with light-guides. Optical de-multiplexer of light-guide is connected with photoconverters. Wall of cryostat is provided with window at the plane where it crosses light-guides. The window can be made in form of optical joint.

EFFECT: improved reliability of operation; reduced heat generation; reduced noise.

3 cl, 2 dwg