Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-09-15
2000-07-11
Mullen, Thomas
Communications: electrical
Condition responsive indicating system
Specific condition
250342, 250353, 250DIG1, 340539, 3406936, 3406938, 34069312, G08B 1318
Patent
active
060879386
ABSTRACT:
An intrusion detection assembly including an intrusion detector including an inner housing, a detector disposed within the inner housing and a lens for focusing light from outside the inner housing onto the detector, and an outer housing which is generally sealed from the outside and defines a window which is generally transparent to light which is detected by the detector, wherein the intrusion detector is spaced from the window so as to define a region of high sensitivity between the lens and the window which is sealed from the outside environment.
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Gitelis Assaf
Gitelis Meir
Mullen Thomas
Nachshol Electronics Ltd.
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