Infra-red radiation detector

Details Infra-red radiation detector Infra-red radiation detector

G - Physics

01

J

340/155.2

G01J 5/34 (2006.01) H01L 37/02 (2006.01)

Patent

CA 1255374

6 PHB 33118 ABSTRACT Pyroelectric Infra-Red Detector. An infra-red radiation detector comprises a pyroelectric detector element (1) in an hermetically sealed housing (9,20). The housing comprises a base (9) and a cover (20) with an aperture (10) surrounded by an inwardly directed flange (17). A self-locating window (18) capable of transmitting infra-red radiation which closes the aperture is fastened to the flange with adhesive. The window comprises a first portion (18a) which is adapted to fit and which is located within the aperture, and a second wider portion (18b) presenting a peripheral shoulder (18c) which bears against the flange. The second portion of the window may be present inside or outside the cover, but the field of view of the detector is greater in the latter case.

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