PIR motion detector for a decorative lantern

Details PIR motion detector for a decorative lantern PIR motion detector for a decorative lantern

2005-09-13

2005-09-13

Hofsass, Jeffery (Department: 2636)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S541000, C340S552000, C340S565000, C362S276000, C362S257000, C362S802000, C250S338100, C250S342000

Reexamination Certificate

active

06943687

ABSTRACT:
A small-sized hidden motion detector that can be incorporated in a decorative manner into a decorative lantern. The motion detector can be incorporated into lighting fixture designs not previously amenable to a hidden motion detector in the body of the lighting fixture. A small decorative motion detector housing is provided defining a compact interior region with a PIR sensor mounted inside and providing a sufficient optical pathway for a practical motion detector of wide angular field of view that can nevertheless fit inside commonly found small-sized decorative lantern elements. In one embodiment the motion detector is hidden in a small generally cylindrical decorative element of the sort that is found in a number of traditional decorative lantern designs and that has not previously been amenable to a hidden motion detector. Another embodiment includes a mechanism for mechanically adjusting the range and responsiveness of the motion detector notwithstanding the small size of the space available for housing the detector.

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