LED light fixture and unitary optic member therefor
First Claim
1. A unitary 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 molded polymeric layer forming (a) a non-lens portion of the optic member, the non-lens portion surrounding each of the plurality of lenses and interconnecting them, and (b) an outermost layer of each of the lenses integral with and continuing from the surrounding non-lens portion; and
each of the lenses having an asymmetric light-receiving inner-surface defining a pair of cavities with at least a portion of a second molded polymeric layer extending inwardly between the cavities and being in layer-to-layer interface bonding with the outermost layer of each of the lenses, a portion of the asymmetric light-receiving inner-surface which defines one of the cavities is at least partially formed by a third polymeric layer in layer-to-layer interface bonding with the second polymeric layer.
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Accused Products
Abstract
A unitary optic member for directing light from a plurality of LED light sources on a board beneath the optic member which has a plurality of lens portions surrounded by and interconnected by a non-lens portion. The optic member being formed by a plurality of layers with layer-to-layer interface bonding between adjacent layers and comprising an asymmetric 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 extending inwardly between the pair of cavities and being bonded to the innermost layer.
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Citations
37 Claims
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1. A unitary 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:
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a first molded polymeric layer forming (a) a non-lens portion of the optic member, the non-lens portion surrounding each of the plurality of lenses and interconnecting them, and (b) an outermost layer of each of the lenses integral with and continuing from the surrounding non-lens portion; and each of the lenses having an asymmetric light-receiving inner-surface defining a pair of cavities with at least a portion of a second molded polymeric layer extending inwardly between the cavities and being in layer-to-layer interface bonding with the outermost layer of each of the lenses, a portion of the asymmetric light-receiving inner-surface which defines one of the cavities is at least partially formed by a third polymeric layer in layer-to-layer interface bonding with the second polymeric layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An LED light fixture comprising:
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a heat-sink structure having a mounting surface; a circuit board on the mounting surface, the circuit board having a plurality of LED light sources spaced thereon; and a unitary optic member over the circuit board, the unitary optic member comprising a first polymeric layer forming a non-lens portion of the optic member interconnecting a plurality of lenses each of which is integral with and continuing from the surrounding non-lens portion, each of the plurality of lenses having an asymmetric light-receiving inner-surface defining a pair of cavities with at least a portion of a second polymeric layer extending inwardly between the cavities and being overmolded onto the first layer, a portion of the asymmetric light-receiving inner-surface which defines one of the cavities is at least partially formed by a third layer with layer-to-layer interface bonding with the second polymeric layer. - View Dependent Claims (11, 12, 13, 14, 15)
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- 16. A lens for directing light from an LED light source, the lens being formed by a plurality of layers with layer-to-layer interface bonding between adjacent layers and comprising an asymmetric 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 extending inwardly between the pair of cavities and being bonded to the innermost layer.
- 20. A unitary polymeric optic member for directing light received from a plurality of spaced apart LED light sources, the unitary optic member comprising a plurality of lenses each formed by a plurality of polymeric layers with layer-to-layer interface bonding between adjacent layers, each of the plurality of lenses having an asymmetric 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 extending inwardly between the cavities and being bonded to the innermost layer.
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30. A unitary 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 comprising a plurality of lenses each for directing light from one of the plurality of LED light sources and each formed by a plurality of polymeric layers,
each of the plurality of lenses having an asymmetric light-receiving inner-surface defining a pair of cavities, a portion of the asymmetric inner-surface which defines one of the cavities being at least partially formed by an inner polymeric layer in layer-to-layer interface bonding with at least a portion of another polymeric layer which extends inwardly between the cavities.
Specification