Lighting fixture with integral motion detector
First Claim
1. A lighting fixture actuated by an infra-red sensing motion detector, the lighting fixture having a decorative fixture body and comprising:
- a motion detector housing disposed to form an integral part of said decorative fixture body, said housing having a convexo-convex shape and comprising a generally convex bottom portion and a generally convex top portion defining said convexo-convex shape;
wherein said generally convex bottom portion has an azimuthally extending lens aperture formed therein, said lens aperture having at least a portion extending out of the vertical direction;
an infra-red sensor responsive to infra-red radiation mounted within said housing in view of said lens aperture;
a plastic lens member covering said lens aperture and formed to conform to the curvature of said generally convex bottom portion, said lens member having a plurality of Fresnel lenses formed thereon and disposed to direct infra-red radiation to said sensor;
wherein said motion detector bottom portion includes a frusto-conical wall portion defining said azimuthally extending lens aperture and said lens member is conically shaped to conform to said frusto-conical wall portion; and
wherein said motion detector housing is disposed such that no portion of said decorative fixture body obstructs the fields of view of said plurality of Fresnel lenses.
18 Assignments
0 Petitions
Accused Products
Abstract
A lighting fixture with infra-red responsive motion detector unit incorporated into the fixture design. The lighting fixture includes a motion detector housing forming an integral part of the lighting fixture body and having a generally convexo-convex shape fitting in with the decorative styling of the fixture body. The bottom portion of the housing has a bottom wall containing an azimuthally extending lens aperture. A plastic lens member is positioned in the lens aperture and is formed to conform to the convex bottom wall so that the lens member appears to form a continuous portion of the wall. The lens member defines a plurality of Fresnel lenses which are disposed to direct infra-red radiation from an object in their aggregate field of view to an infra-red sensor mounted within the housing. The housing is incorporated into the body of the lighting fixture itself, instead of being mounted on a separate mounting base, and is disposed on the lighting fixture such that no other portion of the lighting fixture obstructs the aggregate field of view of the plurality of Fresnel lenses.
30 Citations
6 Claims
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1. A lighting fixture actuated by an infra-red sensing motion detector, the lighting fixture having a decorative fixture body and comprising:
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a motion detector housing disposed to form an integral part of said decorative fixture body, said housing having a convexo-convex shape and comprising a generally convex bottom portion and a generally convex top portion defining said convexo-convex shape; wherein said generally convex bottom portion has an azimuthally extending lens aperture formed therein, said lens aperture having at least a portion extending out of the vertical direction; an infra-red sensor responsive to infra-red radiation mounted within said housing in view of said lens aperture; a plastic lens member covering said lens aperture and formed to conform to the curvature of said generally convex bottom portion, said lens member having a plurality of Fresnel lenses formed thereon and disposed to direct infra-red radiation to said sensor; wherein said motion detector bottom portion includes a frusto-conical wall portion defining said azimuthally extending lens aperture and said lens member is conically shaped to conform to said frusto-conical wall portion; and wherein said motion detector housing is disposed such that no portion of said decorative fixture body obstructs the fields of view of said plurality of Fresnel lenses. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification