Motion detector with non-diverging insensitive zones

Details Motion detector with non-diverging insensitive zones Motion detector with non-diverging insensitive zones

1998-03-05

2000-03-14

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

340565, 340567, G01J 502, G08B 13193, G08B 1318

Patent

active

060375949

ABSTRACT:
A passive infrared motion detector that creates a detection pattern with non-diverging insensitive zones. The sensing elements are of alternating polarity and each has a width w. An optical collection system directs infrared radiation onto the sensing elements. The sensing elements are separated by a distance equal to an integer multiple of width w, with the integer being at least two. The optical centers of the optical collection system are separated by an integer multiple of width w, with the integer being at least two. The arrangement of the optical centers and the sensing elements results in a detection pattern with non-diverging insensitive zones, with the insensitive zones having a negligible width.

REFERENCES:
patent: 2931912 (1960-04-01), Long, Jr.
patent: 3703718 (1972-11-01), Berman
patent: 3886360 (1975-05-01), Reiss et al.
patent: 3928843 (1975-12-01), Sprout et al.
patent: 3958118 (1976-05-01), Schwarz
patent: 4225786 (1980-09-01), Perlman
patent: 4268752 (1981-05-01), Herwig et al.
patent: 4271359 (1981-06-01), Herwig et al.
patent: 4339748 (1982-07-01), Guscott et al.
patent: 4364030 (1982-12-01), Rossin
patent: 4375034 (1983-02-01), Guscott
patent: 4379971 (1983-04-01), Smith et al.
patent: 4429224 (1984-01-01), Wagli et al.
patent: 4442359 (1984-04-01), Lederer
patent: 4523095 (1985-06-01), Keller-Steinbach
patent: 4614938 (1986-09-01), Weitman
patent: 4617463 (1986-10-01), Muirhead
patent: 4644147 (1987-02-01), Zublin
patent: 4672206 (1987-06-01), Suzuki et al.
patent: 4703171 (1987-10-01), Kahl et al.
patent: 4757204 (1988-07-01), Baldwin et al.
patent: 4769545 (1988-09-01), Fraden
patent: 4772797 (1988-09-01), Kahl
patent: 4778996 (1988-10-01), Baldwin et al.
patent: 4841284 (1989-06-01), Biersdorff
patent: 4876445 (1989-10-01), McMaster
patent: 4920268 (1990-04-01), Walters et al.
patent: 4930864 (1990-06-01), Kuster et al.
patent: 5103346 (1992-04-01), Chang
patent: 5187360 (1993-02-01), Pasco
patent: 5442178 (1995-08-01), Baldwin
Heimann, Technical Publication, Designing Passiv-Infrared Detectors.
Heimann, Technical Publication, Pyroelectric Detectors, possibly published Feb. 2, 1987.
Amperex Electric Corporation, Technical Publication, 213, Passive Infrared (PIR) Intruder Alarms, pp. 1-7, Apr. 1986.
Amperex Electric Corporation, Movement Sensing Using a Multi-Element Fresnel Lens, Apr. 1986, pp. 1-9, Apr. 1986.

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