Multi-range infrared detector

Details Multi-range infrared detector Multi-range infrared detector

1989-11-27

1991-03-12

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

250342, 250349, G08B 1318

Patent

active

049996100

ABSTRACT:
An infrared detection system having a detector which includes elements of different sizes which are electrically selectable to change the operational range of the system without any change in the associated optical assembly. The detector elements can be of two or more element sizes, and various detector configurations can be employed such as single or dual detector configurations. To provide a constant signal amplitude for the different selected ranges, the gain of the detector circuitry can be adjusted accordingly to provide uniform signal amplitude irrespective of range setting.

REFERENCES:
patent: 3928843 (1975-12-01), Sprout et al.
patent: 4542295 (1985-09-01), Mattson et al.
patent: 4618854 (1986-10-01), Miyake et al.
patent: 4906976 (1990-03-01), Guscott

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