Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1993-02-17
1994-10-04
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
G01J 510
Patent
active
053528956
ABSTRACT:
A pyroelectric device includes a pyroelectric member for detecting infrared radiation, a transistor whose gate electrode is connected to one of the terminals of the pyroelectric member, a drain terminal connected to a drain electrode of the transistor, a source terminal connected to a source electrode of the transistor, a grounding terminal connected to the other terminal of the pyroelectric member, and a gate resistor connected between the terminals of the pyroelectric member. The gate resistor used in a pyroelectric device for a fire detection has a resistance ranging from 5 to 50 gigaohms, and the gate resistor used in a pyroelectric device for an intrusion detection has a resistance equal to or less than 30 gigaohms.
REFERENCES:
patent: 3769096 (1973-10-01), Ashkin et al.
patent: 4258259 (1981-03-01), Obara et al.
patent: 4542294 (1985-09-01), Tamura et al.
patent: 4626687 (1986-12-01), Nara et al.
patent: 4851682 (1989-07-01), Moriyama et al.
Hannaher Constantine
Nohmi Bosai Ltd.
LandOfFree
Pyroelectric device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pyroelectric device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pyroelectric device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-583193