Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1987-02-06
1989-01-03
Howell, Janice A.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250332, 250349, G02B 528, G01J 506
Patent
active
047959070
ABSTRACT:
An infrared radiation (IR) detector includes a cold shield consisting of (a) a light shielding portion having a substrate made of an infrared transmissive material, an infrared absorbing layer formed on one surface of the substrate, a dielectric layer formed on the infrared absorbing layer and an infrared reflecting layer formed on the dielectric layer, and (b) an opening portion consisting of a substrate made of an infrared transmissive material and a dielectric layer formed on the one surface of the substrate. The substrate and the dielectric layer are connected and generally continuous between the light shielding portion and the opening portion. The IR detector also includes an infrared detector array having a detective area arranged just below the opening portion of the cold shield.
REFERENCES:
patent: 4420688 (1983-12-01), Le Bars
patent: 4446372 (1984-05-01), Gurnee
patent: 4643518 (1987-02-01), Taniguchi
patent: 4675525 (1987-06-01), Amingual et al.
Goto Junjiro
Kochi Tetsuya
Maekawa Tohru
Takigawa Hiroshi
Ueda Satoshi
Fujitsu Limited
Hannaher Constantine
Howell Janice A.
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