Motion detector with side-pivoting light fixture

Details Motion detector with side-pivoting light fixture Motion detector with side-pivoting light fixture

1995-08-11

1997-07-22

Husar, Stephen F.

Illumination

Light source and modifier

Condition responsive

362394, 362421, 362802, F21S 114

Patent

active

056497610

ABSTRACT:
A light fixture controlled by a passive infrared motion detector including a base, one or more lamp holders attached to the base, and a detector housing also attached to the base and containing the motion detector. The lamp holders each comprise a socket housing for receiving a floodlight bulb or the like and a shade or reflector at the front of the socket housing. The lamp holder assembly is connected to the base by a support arm that is pivotably connected to a side wall of the socket housing offset from the end of the socket housing instead of being connected at the end of the socket housing as is conventional. The pivoting side mounting of the lamp holder permits the lamp holder to pivot with a moment arm that is significantly shorter than the overall length of the lamp holder. The shortened moment arm permits the motion detector housing to be mounted closer to the supporting base while leaving sufficient space for the lamp holders to swing through a wide range of movement without the risk of inducing false activations through interference with the movable motion detector housing.

REFERENCES:
patent: D361148 (1995-08-01), Wedell
patent: 4281370 (1981-07-01), Masenheimer et al.
patent: 5086379 (1992-02-01), Denison et al.
patent: 5258899 (1993-11-01), Chen
patent: 5335159 (1994-08-01), Chen et al.
patent: 5381323 (1995-01-01), Osteen et al.
"Introducing the New Generation of Motion Detector Lighting," Intelectron promotional literature, 1994.

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