Emergency egress illuminator and marker light strip
First Claim
1. An emergency egress lighting strip for illuminating an emergency egress path on a passageway floor during conditions of reduced visibility, comprising an elongated transparent housing mounted on a passageway wall and an elongated string of narrow cone angle L.E.D.s mounted within the housing with their beam axes angled outwardly from the wall, each L.E.D. being an intense point source of light which emits light along its beam axis at a narrow cone angle not greater than 45°
- to provide discrete projected point sources of light to mark the path on the passageway floor.
2 Assignments
0 Petitions
Accused Products
Abstract
An emergency lighting strip provides for illumination of the floor of an emergency egress passageway during clear air conditions and also marks an escape path during conditions of limited visibility. The strip mounts two strings of narrow cone L.E.D.s in a transparent tubular housing which is mounted on the passageway wall. The marker string mounts L.E.D.s at half-inch intervals with their beam axes aimed at the middle of the passageway floor. The illuminator string mounts L.E.D.s at four-inch intervals with their beam axes angled above horizontal. A strip of the half-inch spaced L.E.D.s, with the L.E.D. beam axes perpendicular to the wall is mounted to frame and mark an exit doorway.
66 Citations
31 Claims
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1. An emergency egress lighting strip for illuminating an emergency egress path on a passageway floor during conditions of reduced visibility, comprising an elongated transparent housing mounted on a passageway wall and an elongated string of narrow cone angle L.E.D.s mounted within the housing with their beam axes angled outwardly from the wall, each L.E.D. being an intense point source of light which emits light along its beam axis at a narrow cone angle not greater than 45°
- to provide discrete projected point sources of light to mark the path on the passageway floor.
- View Dependent Claims (2, 3, 4, 5, 11, 12, 13, 14, 15)
- 6. An emergency egress lighting strip for marking an illuminating an egress path in a passageway, comprising an elongated transparent housing mounted on a passageway wall, a first elongated string of narrow cone angle L.E.D.s mounted within the housing with their beam axes angled upwardly from horizontal, and a second string of narrow cone angle L.E.D.s mounted within the housing with their beam axes angled downward from horizontal.
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16. An emergency egress lighting strip for marking an emergency egress path along a passageway for occupants of a structure during conditions of reduced visibility, comprising
an elongated transparent housing mounted on a passageway wall, a string of L.E.D.s mounted within the housing, each of which emit light along its beam axis at a narrow cone angle not greater than 45° - , the axes of the L.E.D.s being angled upward from the horizontal,
whereby the strip provides a series of discrete point sources of light which are projected outwardly of the wall to mark an egress path for said occupants along the passageway in conditions of reduced visibility. - View Dependent Claims (17, 18, 19, 20)
- , the axes of the L.E.D.s being angled upward from the horizontal,
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21. An emergency egress lighting strip for illuminating a passageway during clear air conditions and for marking an egress path along the passageway during conditions of reduced visibility, comprising
an elongated transparent housing mounted on a passageway wall above the floor, a first string of light emitting elements mounted within the housing, each being an intense point source of light which emit light along its beam axis at a narrow cone angle, the axes of the elements being angled downward from the horizontal to illuminate a passageway, a second string of light emitting elements mounted within the housing, each being an intense point source of light which emit light along its beam axis at a narrow cone angle, the axes of the elements being angled upward from the horizontal, whereby the first string provides illumination at the center of the passageway floor of at least 0.2 lux under emergency clear air conditions, and the second string provides a series of discrete point sources of light to mark an egress path for said occupants along the passageway in conditions of reduced visibility.
Specification