Flexible elongated lighting system
First Claim
1. A non-land vehicles lightweight emergency lighting system, comprising:
- an extruded, elongated, approximately tubular, flexible waterproof housing member having a hollow interior with an upper light transmission portion of a cross-sectional variable thickness, the optical refraction characteristics of the upper light transmission portion providing a directional transmission of light towards a predetermined field angle extending traversely to a longitudinal axis of the housing member that is substantially less than 360°
, and a lower mounting portion of a different configuration, the upper and lower portions extending substantially along the entire length of the housing member;
a plurality of light-emitting diodes positioned within the hollow interior of the housing member on a plane intersecting the housing member longitudinal axis and the middle of the upper light transmission portion and spaced along the longitudinal axis of the housing member;
an approximately flat bus strip mounting the light-emitting diodes along one edge and providing common electrical connections to each diode, the bus strip being laterally flexible perpendicular to the plane, the lower portion of the housing member supporting the bus strip so that the light-emitting surfaces of the diodes are operatively positioned adjacent the upper portion of the housing member to primarily distribute the light emitted from the diodes within the predetermined field angle, andmeans for providing a pulsed electrical power to illuminate the light-emitting diodes and providing a perceptively constant brightness to prolong the life of the power during an emergency.
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Accused Products
Abstract
A lightweight emergency lighting system capable of arrangement into various subjective configurations is provided. A housing member supports a plurality of individual lighting elements mounted on a common semi-rigid bus bar. The upper configuration of the housing members is capable of a directional transmission of light towards a predetermined field angle, while the lower configuration is adaptable for mounting the lighting elements. The upper housing member can have an interior surface of a prismatic configuration to provide a refraction and reflection of light in combination with the exterior surface. The lighting elements, such as L.E.D.'"'"'s, can be excited through a pulsing circuit to maximize the light output while conserving power from an auxiliary battery source.
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Citations
17 Claims
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1. A non-land vehicles lightweight emergency lighting system, comprising:
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an extruded, elongated, approximately tubular, flexible waterproof housing member having a hollow interior with an upper light transmission portion of a cross-sectional variable thickness, the optical refraction characteristics of the upper light transmission portion providing a directional transmission of light towards a predetermined field angle extending traversely to a longitudinal axis of the housing member that is substantially less than 360°
, and a lower mounting portion of a different configuration, the upper and lower portions extending substantially along the entire length of the housing member;a plurality of light-emitting diodes positioned within the hollow interior of the housing member on a plane intersecting the housing member longitudinal axis and the middle of the upper light transmission portion and spaced along the longitudinal axis of the housing member; an approximately flat bus strip mounting the light-emitting diodes along one edge and providing common electrical connections to each diode, the bus strip being laterally flexible perpendicular to the plane, the lower portion of the housing member supporting the bus strip so that the light-emitting surfaces of the diodes are operatively positioned adjacent the upper portion of the housing member to primarily distribute the light emitted from the diodes within the predetermined field angle, and means for providing a pulsed electrical power to illuminate the light-emitting diodes and providing a perceptively constant brightness to prolong the life of the power during an emergency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification