公开(公告)号：US20250022993A1

公开(公告)日：2025-01-16

申请号：US18897893

申请日：2024-09-26

Applicant: CREE LIGHTING USA LLC

Inventor： Eric Tarsa ,  Kurt Wilcox ,  Bin Hou ,  Ted Lowes

IPC: H01L33/58 ,  F21V5/00 ,  F21V5/04 ,  F21V7/00 ,  F21Y115/10 ,  G02B19/00 ,  H01L25/075

Abstract: A lens for distribution of light predominantly toward a preferential side from a light emitter having an emitter axis. The lens has a faceted output region, a smooth output surface and at least one reflective surface which reflects light through total-internal-reflection (TIR) toward the faceted output region. The faceted output region is formed by pairs of transverse surfaces each surface of which redirects the received light to provide a composite illuminance pattern. The lens may further have faceted input surfaces at least partially defining a light-input cavity about the emitter axis. The faceted input region are formed by pairs of transverse surfaces each surface of which redirects the received light.

公开(公告)号：US12209729B2

公开(公告)日：2025-01-28

申请号：US18498467

申请日：2023-10-31

Applicant: CREE LIGHTING USA LLC

Inventor： Randall Levy Bernard ,  Kurt S. Wilcox ,  Kurt Schreib ,  Bin Hou ,  Jeremy Richard Sorenson ,  Anthony T. Schauf ,  Scott Fisher

IPC: F21S8/02 ,  F21V5/04 ,  F21V14/00 ,  F21V29/74 ,  F21Y115/10

Abstract: An optic for a light-emitting diode (LED) array comprises an arrangement of optical structures for providing down lighting distribution from the LED array and a waveguide edge for providing up-lighting distribution from the LED array. Luminaires are described comprising an LED array and the optic. An overhead light fixture includes a driver assembly and a light-emitting assembly. The light-emitting assembly is operably connected to the driver and configured for downward emission of light from a light source of the light-emitting assembly. The light fixture is configured to be mounted to a canopy sheet of an overhead canopy, with the driver assembly disposed above the canopy sheet and the light-emitting assembly disposed below the canopy sheet. A bezel is optionally disposed around a lens of the light-emitting assembly, for aesthetic reasons and/or for controlling a degree of lateral emission of light from the light fixture.

公开(公告)号：US12136689B2

公开(公告)日：2024-11-05

申请号：US17715441

申请日：2022-04-07

Applicant: CREE LIGHTING USA LLC

Inventor： Eric Tarsa ,  Kurt Wilcox ,  Bin Hou ,  Ted Lowes

IPC: H01L33/58 ,  F21V5/00 ,  F21V5/04 ,  F21V7/00 ,  F21Y115/10 ,  G02B19/00 ,  H01L25/075

Abstract: A lens for distribution of light predominantly toward a preferential side from a light emitter having an emitter axis. The lens has a faceted output region, a smooth output surface and at least one reflective surface which reflects light through total-internal-reflection (TIR) toward the faceted output region. The faceted output region is formed by pairs of transverse surfaces each surface of which redirects the received light to provide a composite illuminance pattern. The lens may further have faceted input surfaces at least partially defining a light-input cavity about the emitter axis. The faceted input region are formed by pairs of transverse surfaces each surface of which redirects the received light.