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US 5,130,909 AGranted
Emergency lighting strip
AssigneeWickes Manufacturing Company
InventorH. Gerald Gross
Life of this patent
Estimating the term…
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AssigneeWickes Manufacturing Company
InventorH. Gerald Gross
Estimating the term…
An emergency aid, in the form of a lighting strip arranged along the floor of a predetermined escape route, is provided for guiding the escape of occupants from a confined area during conditions of severely reduced visibility. The strip comprises a plurality of spaced light-emitting elements, each being an L.E.D. emitting a beam having an axial intensity of at least 0.12 candela and a full cone angle no greater than 24 degrees. Each element includes an exernal reflector, in the form of a spaced prism or a metal reflector mounted on the element, located along its beam axis and angled with respect thereto for deflecting the emitted light at a predetermined angle. In one embodiment the elements are arranged in pairs facing each other with their beam axes parallel to the axis of the strip and their reflectors between them. The reflectors are arranged to emit light in two predetermined directions relative to the axis, preferably along the floor to illuminate it, and vertically to mark the path to escaping occupants. In another embodiment the elements are arranged in a single direction and can have metal reflectors mounted on the elements. If the strip is mounted at the juncture of a wall and the floor, the reflectors angle alternate beams horizontally and outward at a 45.degree. angle.
An emergency lighting strip comprising a plurality of light-emitting elements spaced along the strip axis, each being an intense point source of light emitting a beam along its beam axis having an axial intensity of at least 0.12 candela and a full cone angle no greater than 24 degrees.
An emergency lighting strip comprising a plurality of light-emitting elements, spaced along the strip axis, each being an intense point source of light emitting light along a beam axis and within a predetermined cone angle, and an external reflector located along the beam axis of each element and angled with respect thereto for deflecting the emitted light at a predetermined angle.
An emergency aid for guiding the escape of occupants from a confined area during conditions of severely reduced visibility, comprising a lighting strip arranged along a predetermined escape route and having a plurality of L.E.D. elements spaced along the strip axis, wherein each element is an intense point source of light emitting a beam having an axial intensity of at least 0.12 candela and a full cone angle no greater than 24 degrees, and includes an external reflector located along its beam axis and angled with respect thereto for deflecting the emitted light at a predetermined angle.
A lighting element for use in an emergency lighting aid for guiding the escape of occupants from a confined area during conditions of severely reduced visibility, comprising a body, a lens, a point source of light within the body for emitting a beam through the lens along a beam axis within a predetermined cone angle, and a reflector carried by the body for deflecting the emitted beam at a predetermined angle to the beam axis.
Dependencies are inferred from the claim text.