Infrared detector array assembly with attached optical microphon

Details Infrared detector array assembly with attached optical microphon Infrared detector array assembly with attached optical microphon

1979-05-08

1981-02-24

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250352, G01J 100

Patent

active

042530229

ABSTRACT:
An infrared detector assembly comprising a substrate of suitable material such as sapphire, an infrared detector array attached to the substrate, a cold shield attached to the detector array, and an optical microphonics filter attached to the cold shield is disclosed. The optical microphonics filter includes a substrate of material having its major surfaces coated with layers of thin film coatings for passing a preselected frequency band, and a metalization for reflecting spurious energy impinging thereon thereby shielding the filter's substrate and coatings therefrom.

REFERENCES:
patent: 3103585 (1963-09-01), Johnson et al.
patent: 3614188 (1971-10-01), Seeley et al.
patent: 3963926 (1976-06-01), Borrello

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