公开(公告)号：US20180128961A1

公开(公告)日：2018-05-10

申请号：US15625546

申请日：2017-06-16

Applicant: Cree, Inc.

Inventor： Jin Hong LIM ,  Kurt WILCOX ,  Boris KARPICHEV ,  Donald WALKER

IPC: F21V8/00 ,  F21V29/83 ,  F21V23/00

CPC classification number: G02B6/0055 ,  F21V23/007 ,  F21V29/83 ,  F21Y2115/10 ,  G02B6/002 ,  G02B6/0031 ,  G02B6/0036 ,  G02B6/0045 ,  G02B6/0068 ,  G02B6/0083 ,  G02B6/0085

Abstract: In one aspect, optic assemblies and waveguide fixtures comprising the same are described herein. In an exemplary embodiment, an optic assembly includes an optic housing, an optical insert positioned in the optic housing, and a waveguide optic positioned in the optical insert. The waveguide optic includes a light extraction face and at least two sets of light extraction elements provided on the light extraction face. The at least two sets of light extraction elements are disposed on opposing sides of an axis of symmetry for extracting a symmetric lighting distribution.

公开(公告)号：US20180252899A1

公开(公告)日：2018-09-06

申请号：US15449126

申请日：2017-03-03

Applicant: Cree, Inc.

Inventor： Jin Hong LIM ,  John ROBERTS ,  Steve WILCENSKI

IPC: G02B13/18 ,  H04N5/225 ,  G02B13/08 ,  G03B15/06

CPC classification number: G02B13/18 ,  G02B13/08 ,  G03B15/03 ,  G03B2215/0592 ,  H04N5/2256

Abstract: Asymmetrical lenses are provided having design to mitigate or eliminate field of view mismatch between image sensor modules and luminaires incorporating the image sensor modules. Briefly, an asymmetrical lens comprises an optical axis and a front surface comprising a first set of normal axes (x, y) in a plane normal to the optical axis and a negative radius of curvature or positive radius of curvature along each of the normal axes (x, y). The asymmetrical lens also comprises a back surface comprising a second set of normal axes (x′, y′) in the plane normal to the optical axis and a negative radius of curvature or positive radius of curvature along each of the normal axes (x′, y′), wherein the asymmetrical lens has negative refractive power or positive refractive power in each of an x-axis and y-axis of an image plane of the asymmetrical lens.

公开(公告)号：US20180128960A1

公开(公告)日：2018-05-10

申请号：US15347413

申请日：2016-11-09

Applicant: Cree, Inc.

Inventor： Jin Hong LIM ,  Corey Goldstein ,  Kurt Wilcox ,  Mark Dixon ,  Scott Fisher

IPC: F21V8/00

CPC classification number: G02B6/0055 ,  G02B6/0031 ,  G02B6/0068 ,  G02B6/0088

Abstract: In one aspect, lighting devices are described herein. A lighting device comprises an optic housing, a waveguide optic and an optical insert positioned in the housing, the optical insert comprising one or more reflective sidewalls for redirecting light emitted from the waveguide optic. The waveguide optic comprises sidewalls and a light extraction face including extraction elements, wherein the reflective sidewalls of the optical insert cover at least a portion of the sidewalls of the waveguide optic.