# US 9,518,716 B1 · Linear wide area lighting system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,518,716 B1 - Document ID: US9518716B1 - Status: Granted - Kind: B1 - Application number: 14/226,773 - Filed: 2014-03-26 - Granted: 2016-12-13 - Earliest claimed: 2013-03-26 - Assignees: Universal Lighting Technologies, Inc. - Applicants: Universal Lighting Technologies, Inc. - Inventors: John R. Householder - Web page: https://patentgrep.com/patent/US9518716B1 ## CPC - F21S 4/28: rigid, e.g. LED bars - F21S 8/00: Lighting devices intended for fixed installation (F21S9/00, F21S10/00 take precedence; using a string or strip of light sources F21S4/00) - F21V 5/043: {the lens having cylindrical faces, e.g. rod lenses, toric lenses} - F21V 7/005: {with an elongated shape to cooperate with linear light sources} - F21V 15/01: Housings, e.g. material or assembling of housing parts (F21V15/02 takes precedence {housings forming signs or letters G09F13/04}) - F21V 19/0045: {by tongue and groove connections, e.g. dovetail interlocking means fixed by sliding} - F21V 23/06: the elements being coupling devices {, e.g. connectors} - F21V 31/005: {Sealing arrangements therefor} - F21Y 2103/10: comprising a linear array of point-like light-generating elements - F21Y 2115/10: Light-emitting diodes [LED] - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract A linear wide area lighting system includes an elongated substrate having a linear light emitter array disposed on the substrate. The array includes a plurality of light emitters such as light emitting diodes or lamps. An elongated refractive lens is positioned over the substrate and linear light emitter array such that light emitted from the emitters is incident on the refractive lens and is refracted through the lens into a wide illumination area. The lens is extruded in some embodiments providing the lens with a substantially uniform extruded cross-sectional profile in some embodiments. The substrate is housed either between a base and the lens in some embodiments, or in an integrally formed bore in the lens body in other embodiments. One or more end caps are located on the longitudinal ends of the lens and base to fully enclose and seal the substrate and linear light emitter array. ## Claims ### Claim 1 A lighting apparatus, comprising: a substrate having first and second opposing sides, the substrate extending longitudinally in a first direction; a base defining a substrate channel shaped to receive the substrate, wherein the substrate is installed in the substrate channel of the base; a longitudinal mounting groove defined in the base; a longitudinal mounting flange disposed on the base, wherein the longitudinal mounting flange of the base is shaped to be received in a longitudinal mounting groove on a like base; at least one linear light emitter array disposed on at least one of the first and second opposing sides of the substrate, the array extending longitudinally in the first direction, the light emitter array comprising a plurality of light sources, each light source extending perpendicularly from the at least one of the first and second opposing sides of the substrate in a second direction, the second direction perpendicular to the first direction; an elongated refractive lens positioned over the substrate, the lens having a longitudinal axis extending in the first direction, the lens having a two-dimensional light refraction profile substantially transverse to the longitudinal axis, the lens including a longitudinal bore extending from a first end of the lens to a second end of the lens, the bore of the lens comprising a longitudinal recess facing the substrate, the plurality of light sources extending into the longitudinal bore; and a first mounting structure coupled to the substrate, the first mounting structure including at least a first longitudinal mounting slot, the first longitudinal mounting slot extending in the first direction parallel to the longitudinal axis, the first longitudinal mounting slot displaced away from the substrate in a third direction, the third direction perpendicular to the first direction and perpendicular to the second direction. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the substrate is a printed circuit board. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein the plurality of light sources of the light emitter array includes a plurality of light emitting diodes. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the longitudinal bore includes a longitudinal substrate channel shaped to receive the substrate in the bore. ### Claim 5 (depends on 4) The apparatus of claim 4, where in the substrate is disposed in the bore. ### Claim 6 (depends on 5) The apparatus of claim 5, wherein the substrate is housed entirely within the longitudinal bore in the lens, and a portion of the substrate is received in the substrate channel. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the base is extruded. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein the bore of the lens comprises a longitudinal recess facing the substrate. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein longitudinal mounting groove and longitudinal mounting flange each have a dovetail configuration. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the substrate is positioned directly against the base, and the base is operable as a heat sink to extract heat from the substrate. ### Claim 11 (depends on 10) The apparatus of claim 10, further comprising a first longitudinal seal between the lens and the base. ### Claim 12 (depends on 11) The apparatus of claim 11, further comprising a second longitudinal seal between the lens and the base substantially parallel to the first longitudinal seal. ### Claim 13 A lighting apparatus, comprising: an elongated lens body having a bore defined longitudinally through the lens body along a longitudinal axis extending in a first direction; a substrate positioned in the bore, the substrate extending longitudinally in the first direction, the substrate having a first side and a second side; a first linear light emitter array disposed on the first side of the substrate, the first linear light emitter array including a plurality of light emitters in longitudinally spaced relation to each other, the light emitters extending into the bore of the lens body in a second direction, the second direction perpendicular to the substrate; a first longitudinal refractive lens portion integrally formed on the lens body, the first longitudinal refractive lens portion positioned over the first linear light emitter array, the first longitudinal refractive lens portion having a two-dimensional refraction profile substantially transverse to the longitudinal axis; a second linear light emitter array disposed on the second side of the substrate; a second longitudinal refractive lens portion integrally formed on the lens body, the second longitudinal refractive portion positioned over the second linear light emitter array; and a first mounting structure coupled to the substrate, the first mounting structure including at least a first longitudinal mounting slot, the first longitudinal mounting slot extending in the first direction parallel to the longitudinal axis, the first longitudinal mounting slot displaced away from the substrate in a third direction, the third direction perpendicular to the first direction and perpendicular to the second direction. ### Claim 14 (depends on 13) The apparatus of claim 13, further comprising a substrate channel defined in the lens body along the bore, wherein a portion of the substrate is received in the substrate channel. ### Claim 15 (depends on 13) The apparatus of claim 13, wherein the second longitudinal refractive lens has a two-dimensional refraction profile substantially transverse to the longitudinal axis. ### Claim 16 (depends on 13) The apparatus of claim 13, wherein the lens body and the substrate are secured to a lens base, and wherein the first mounting structure that including the first longitudinal mounting slot is formed into the lens base. ### Claim 17 (depends on 13) The apparatus of claim 13, wherein the first mounting structure including the at least one longitudinal mounting slot is formed into the lens body. ### Claim 18 (depends on 13) The apparatus of claim 13, further including a second mounting structure and a second longitudinal mounting slot, the second longitudinal mounting slot extending parallel to the longitudinal axis, the second longitudinal mounting slot displaced away from the substrate in a fourth direction opposite the second direction, the fourth direction perpendicular to the first direction and perpendicular to the second direction. ### Claim 19 (depends on 1) The apparatus of claim 1, wherein the first mounting structure including the at least one longitudinal mounting slot is formed into the lens base. ### Claim 20 (depends on 1) The apparatus of claim 1, wherein the first mounting structure including the at least one longitudinal mounting slot is formed into the lens. ### Claim 21 (depends on 1) The apparatus of claim 1, further including a second mounting structure and a second longitudinal mounting slot, the second longitudinal mounting slot extending parallel to the longitudinal axis, the second longitudinal mounting slot displaced away from the substrate in a fourth direction opposite the second direction, the fourth direction perpendicular to the first direction and perpendicular to the second direction.