Two-sided integrated-circuit PIR sensor package

Details Two-sided integrated-circuit PIR sensor package Two-sided integrated-circuit PIR sensor package

1994-01-28

1996-01-16

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503382, 2503383, G01J 500, H01L 2702

Patent

active

054850118

ABSTRACT:
A two-sided passive infrared integrated-circuit sensor package for use in infrared motion detectors as well as other infrared sensing applications. The integrated-circuit sensor package has a casing with viewing windows transmissive to infrared radiation on opposite sides. Infrared sensing elements are mounted within the integrated circuit package so that both sides of the sensing elements are able to receive infrared radiation through the viewing windows from the areas in front of and behind the integrated-circuit package. By this simple mechanical change in the package and sensing element mounting, the area of sensitivity of the sensor is effectively doubled with no change in the electronic design of the circuit and with no increase in the number or size of the infrared-sensitive sensing elements within the IC package.

REFERENCES:
patent: 3877308 (1975-04-01), Taylor
patent: 4336452 (1982-06-01), Baker
patent: 4437003 (1984-03-01), Doctor
patent: 5178464 (1993-01-01), Fraden

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