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US 10,704,762 B2Granted
Faceted lamp post lens
AssigneeCorLed Systems, LLC
InventorsDerek Mallory, Brian Wells, John Kahl, Dianna Stadtherr
Life of this patent
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Abstract
A decorative optical element that has an appearance of a glass optical element includes an optically transparent body having a faceted globular portion defined by a solid volume of polymeric material. A luminaire, such as for a street light, employs the decorative optical element and an LED circuit board mounted to the circuit board.
Claims16
An optical element, comprising:
- an optically transparent body having a faceted globular portion,
- wherein the globular portion is defined by a solid volume of polydimethylsiloxane elastomer, and
- wherein the globular portion includes a plurality of faceted bands circumscribing the globular portion of the body, each of the faceted bands separated by a circumferential groove.
An optical element, comprising:
- an optically transparent body having a faceted globular portion,
- wherein the globular portion is defined by a solid volume of polydimethylsiloxane elastomer, and wherein the optically transparent body includes at least five faceted bands and at least four circumferential grooves.
A luminaire comprising:
- at least one light-emitting diode mounted on a circuit substrate;
- and
- an optical element coupled to the circuit substrate to allow light from the at least one light emitting diode to enter the optical element and be refracted within the optical element before exiting the optical element, wherein the optical element includes an optically transparent body having a faceted globular portion defined by a solid volume comprised of a polydimethylsiloxane elastomer, and wherein the globular portion includes a plurality of faceted bands circumscribing the globular portion, each of the faceted bands separated by a circumferential groove.
A process for making an optical element of polydimethylsiloxane, comprising:
- providing four identical mold sections;
- providing a base section;
- assembling the four identical mold sections and base section to define a casting mold having a hollow volume corresponding to the shape of a desired casting;
- filling the hollow volume with a curable liquid polydimethylsiloxane composition;
- and
- curing the liquid composition to form the casting an optical element.
3 more elements
Dependencies are inferred from the claim text.