Infrared radiation detector with flanged semiconductor window

Details Infrared radiation detector with flanged semiconductor window Infrared radiation detector with flanged semiconductor window

1987-09-25

1989-02-07

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503381, 250353, G01J 508

Patent

active

048033600

ABSTRACT:
An infrared radiation detector comprises a pyroelectric detector element in a hermetically sealed housing. The housing comprises a base and a cover. The cover has an aperture surrounded by an inwardly directed flange. A self-locating window capable of transmitting infrared radiation is fastened to the flange with adhesive to close the aperture. The window comprises a first portion which is adapted to fit within and which is located within the aperture. A second wider portion forms a peripheral shoulder which bears against the cover's flange. The second portion of the window is present outside the cover, giving a wide field of view.

REFERENCES:
patent: 3281606 (1966-10-01), Lueck
patent: 4425504 (1984-01-01), Turnbull et al.
patent: 4437002 (1984-03-01), Taniguchi et al.
patent: 4616136 (1986-10-01), Ball et al.

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