INFRARED MULTISPECTRAL RADIATION DETECTOR Russian patent published in 2015 - IPC G08B17/12 

FIELD: physics.

SUBSTANCE: infrared multispectral radiation detector comprises multiple photosensitive elements with optical filters placed in front of said elements, wherein all photosensitive elements and optical filters have a single optical axis. The photosensitive elements are made of the same composition of semiconductor material in a single process cycle on a single substrate with a topology which represents a plurality of alternating photosensitive regions and current-conducting electrodes, in the form of concentric circles, and the optical filters are made on another substrate in the form of thin-film multilayer interference structures which are a plurality of concentric circles with a topology identical to that of the photosensitive elements.

EFFECT: high sensitivity of multispectral radiation detectors.

3 cl, 1 tbl, 1 dwg