초록 ▼

A light fixture device comprises a reflector portion having a pair of parallel longitudinal boundary regions and a pair of parallel lateral boundary regions; the reflector portion being shaped according to a longitudinal focal line, a pair of housing portions, each for engaging a corresponding later

A light fixture device comprises a reflector portion having a pair of parallel longitudinal boundary regions and a pair of parallel lateral boundary regions; the reflector portion being shaped according to a longitudinal focal line, a pair of housing portions, each for engaging a corresponding lateral boundary region; at least one connector portion for coupling the housing portions together with the reflector portion.

대표청구항 ▼

The invention claimed is: 1. A far field lighting fixture, comprising one or more housing portions, a concave far field light reflector portion coupled with the housing portions, the housing portions and/or the far field light reflector defining an inner region and cooperating to form an outer fixt

The invention claimed is: 1. A far field lighting fixture, comprising one or more housing portions, a concave far field light reflector portion coupled with the housing portions, the housing portions and/or the far field light reflector defining an inner region and cooperating to form an outer fixture periphery, a lamp with a light emanating surface defining a light source boundary, the far field light reflector portion having a reference point located within the inner region, the lamp being arranged so that the light source boundary is in an offset position between the reference point and the reflector portion, the reflector portion including a plurality of reflector segments, each to receive incident light from the light source boundary, a plurality of radial segments, each separating a pair of neighboring reflector segments, each radial segment being co-linear with a radial path extending from the reference point, each radial segment facing away from the light source boundary, each reflector segment portion being positioned relative to a focal point to receive incident light from the light source boundary, each reflector segment being opposite a corresponding region on the outer boundary, each reflector segment to emit reflected light at an angle of reflectance sufficient to direct the reflected light past the outer periphery without being incident thereon. 2. A fixture as defined in claim 1, the reference point and the focal point being coincident. 3. A fixture as defined in claim 1, the focal point being between the reference point and the reflective portion. 4. A fixture as defined in claim 1, the light source boundary being in the shape of an elongate cylinder with an elongate axis, the reflector segments being planar and parallel to the elongate axis. 5. A fixture as defined in claim 4, each of the reflector segments being coextensive with one of a corresponding plurality of modeled curvilinear reference paths scaled about the focal point. 6. A fixture as defined in claim 4, each of the reflector segments being coextensive with one of a corresponding plurality of modeled parabolic reference paths scaled about the focal point. 7. A fixture as defined in claim 4, the far field reflector portion formed from an extruded section. 8. A fixture as defined in claim 4, the reflector portion including a pair of lateral sections symmetrically extending outwardly from the focal point. 9. A method of forming a far field lighting fixture, comprising the steps of: establishing a focal point; providing a concave primary reference path positioned relative to the focal point; configuring the reference path and the position of the focal point to form a theoretical reflector profile for a far field lighting fixture with a light source to be located in an offset position between the focal point and the reference path; providing a plurality of secondary reference paths which are concentric with the primary reference path and scaled about the focal point; providing a plurality of radial lines extending from the focal point, each radial line meeting each primary and secondary reference path to form a plurality of path segments, each between adjacent radial lines, and to form a plurality of line segments, each between adjacent path segments; forming a modeled reflector profile for a far field lighting fixture by forming a chain of adjacent groups of one or more path segments, joined by groups of one or more line segments; forming a far field light reflector based on the modeled reflector profile to provide a plurality of reflector path segments coextensive with the modeled path segments and a plurality of reflector line segments coextensive with the modeled line segments; locating the far field light reflector in a housing structure, the housing structure and/or the far field light reflector providing an outer periphery; locating the light source in the offset position beside the focal point and between the focal point and the far field light reflector; and, configuring the light source, the focal point and/or the far field reflector to confine the incident light emanating surfaces of the light source to land on the reflector path segments, with the light source so positioned to minimize incident light from the light source on the reflector line segments, and with each reflector path segment providing an angle of reflectance which is sufficient for substantially all light reflected from the far field light reflector to pass beyond the outer periphery without being incident thereon. 10. A method of forming a reflector portion for a far field lighting fixture, comprising the steps of: establishing a focal point; providing a concave primary reference path positioned relative to the focal point; configuring the reference path and the position of the focal point to form a theoretical reflector profile for a far field lighting fixture with a light source to be located in an offset position between the focal point and the reference path; providing a plurality of secondary reference paths which are concentric with the primary reference path and scaled about the focal point; providing a plurality of radial lines extending from the focal point, each radial line meeting each primary and secondary reference path to form a plurality of path segments, each between adjacent radial lines, and to form a plurality of line segments, each between adjacent path segments; forming a modeled reflector profile for a far field lighting fixture by forming a chain of adjacent groups of one or more path segments, joined by groups of one or more line segments; forming a far field light reflector based on the modeled reflector profile to provide a plurality of reflector path segments coextensive with the modeled path segments and a plurality of reflector line segments coextensive with the modeled line segments; and, locating the far field light reflector in a housing structure, the housing structure and/or the far field light reflector providing an outer periphery. 11. A method of forming a far field lighting fixture, comprising the steps of: establishing a focal point; establishing a reference point; providing a concave primary reference path positioned relative to the focal point; configuring the reference path and the position of the focal point to form a theoretical reflector profile for a far field lighting fixture with a light source to be located in an offset position between the reference point and the reference path; providing a plurality of secondary reference paths which are concentric with the primary reference path and scaled about the focal point; providing a plurality of radial lines extending from the reference point, each radial line meeting each primary and secondary reference path to form a plurality of path segments, each between adjacent radial lines, and to form a plurality of line segments, each between adjacent path segments; forming a modeled reflector profile for a far field lighting fixture by forming a chain of adjacent groups of one or more path segments, joined by groups of one or more line segments; forming a far field light reflector based on the modeled reflector profile to provide a plurality of reflector path segments coextensive with the modeled path segments and a plurality of reflector line segments coextensive with the modeled line segments; locating the far field light reflector in a housing structure, the housing structure and/or the far field light reflector providing an outer periphery; locating the light source in the offset position beside the reference point and between the reference point and the far field light reflector; and, configuring the light source, the focal point, the reference point and/or the far field reflector to confine the incident light emanating surfaces of the light source to land on the reflector path segments, with the light source so positioned to minimize incident light from the light source on the reflector line segments, and with each reflector path segment providing an angle of reflectance which is sufficient for substantially all light reflected from the far field light reflector to pass beyond the outer periphery without being incident thereon.