# US 11,112,083 B2 · Optic member for an LED light fixture > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,112,083 B2 - Document ID: US11112083B2 - Status: Granted - Kind: B2 - Application number: 16/557,420 - Filed: 2019-08-30 - Published: 2019-12-19 - Granted: 2021-09-07 - Earliest claimed: 2013-03-15 - Assignees: IDEAL Industries Lighting LLC - Applicants: IDEAL Industries Lighting LLC - Inventors: Craig Raleigh; Kurt S. Wilcox - Web page: https://patentgrep.com/patent/US11112083B2 ## CPC - F21V 5/007: {Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane (combination of two or more refractors F21V5/008)} - B29C 45/16: Making multilayered or multicoloured articles {(B29C45/0062 takes precedence; feeding colouring materials into the injection unit B29C45/1816)} - B29D 11/0074: {Production of other optical elements not provided for in B29D11/00009- B29D11/0073} - F21V 5/04: of lens shape - B29K 2083/005: {LSR, i.e. liquid silicone rubbers, or derivatives thereof} - B29K 2995/0031: Refractive - B29L 2011/0016: {Lenses} - F21Y 2105/10: comprising a two-dimensional [2D] array of point-like light-generating elements - F21Y 2115/10: Light-emitting diodes [LED] - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES - 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 lens for directing light from an LED light source. The lens is formed by a plurality of layers and has a light-receiving inner-surface defining a pair of cavities. A portion of the inner-surface which defines one of the cavities is at least partially formed by an innermost layer of the plurality of layers. At least a portion of another of the plurality of layers extends inwardly between the pair of cavities. Another aspect of this invention is an optic member including a plurality of the lenses for directing light received from a plurality of spaced apart LED light sources. ## Claims ### Claim 1 An optic member for directing light from a plurality of LED light sources in spaced relationship to one another on a board beneath the optic member, the optic member having a plurality of lenses each for directing light from one of the plurality of LED light sources, the optic member comprising: a first layer of material forming an outermost surface of each of the lenses and a non-lens portion extending from each outermost surface and interconnecting the plurality of lenses; and each of the lenses having a light-receiving inner-surface defining a pair of cavities with at least a portion of a second layer of material extending inwardly between the cavities, a third layer of material at least partially forming a portion of the light-receiving inner-surface which defines one of the cavities; wherein the third layer is an innermost layer. ### Claim 2 (depends on 1) The optic member of claim 1 wherein the first layer forms, at each lens, a pocket-space that comprises the second and third layer of each lens within, the second and third layers each being molded polymeric layers. ### Claim 3 (depends on 1) The optic member of claim 1 wherein the third layer is an LSR layer. ### Claim 4 (depends on 1) The optic member of claim 1 wherein at least two of the layers have different indices of refraction. ### Claim 5 An optic member for directing light from a plurality of LED light sources in spaced relationship to one another on a board beneath the optic member, the optic member having a plurality of lenses each for directing light from one of the plurality of LED light sources, the optic member comprising: a first layer of material forming an outermost surface of each of the lenses and a non-lens portion extending from each outermost surface and interconnecting the plurality of lenses; and each of the lenses having a light-receiving inner-surface defining a pair of cavities with at least a portion of a second layer of material extending inwardly between the cavities, a third layer of material at least partially forming a portion of the light-receiving inner-surface which defines one of the cavities; wherein the first and second layers are of different polymeric materials. ### Claim 6 (depends on 5) The optic member of claim 5 wherein the first layer is an acrylic layer and the third layer is an LSR layer. ### Claim 7 An LED light fixture comprising: a plurality of LED light sources spaced on a mounting surface; and an optic member over the plurality of LED light sources and comprising a plurality of lenses interconnected by a non-lens portion, each of the plurality of lenses having a light-receiving inner-surface which defines a pair of cavities with at least a portion of one optical layer extending inwardly between the cavities and another optical layer at least partially forming a portion of the light-receiving inner-surface which defines one of the cavities; wherein the another optical layer is an innermost layer, and the layers are of different polymeric materials. ### Claim 8 (depends on 7) The LED light fixture of claim 7 wherein the another optical layer is an LSR layer. ### Claim 9 (depends on 7) The LED light fixture of claim 7 wherein the non-lens portion of the optic member is formed by a layer forming, at each lens, a pocket-space that comprises the optical layer and the another optical layer of each lens within. ### Claim 10 (depends on 7) The LED light fixture of claim 7 wherein at least two of the non-lens portion, the optical layer, and the another optical layer have different indices of refraction. ### Claim 11 A lens for directing light from a light source, the lens being formed by a plurality of layers and comprising an inner surface defining a pair of cavities with at least a portion of one optical layer extending inwardly between the cavities and a portion of the inner surface which defines one of the cavities being at least partially formed by an innermost layer of the plurality of layers, wherein the innermost layer is an LSR layer. ### Claim 12 (depends on 11) The lens of claim 11 wherein at least two of the layers have different indices of refraction. ### Claim 13 An optic member for directing light received from a plurality of spaced apart LED light sources, the optic member comprising a plurality of lenses each formed by a plurality of polymeric layers, each of the plurality of lenses having an inner-surface defining a pair of cavities with at least a portion of one of the plurality of layers extending inwardly between the cavities and a portion of the inner surface which defines one of the cavities being at least partially formed by an innermost layer of the plurality of layers. ### Claim 14 (depends on 13) The optic member of claim 13 wherein the innermost layer is an LSR layer. ### Claim 15 (depends on 13) The optic member of claim 13 wherein each of the lenses comprises an outermost layer of an acrylic. ### Claim 16 (depends on 13) The optic member of claim 13 wherein at least two of the plurality of layers have different indices of refraction.