公开(公告)号：US20180216791A1

公开(公告)日：2018-08-02

申请号：US15419538

申请日：2017-01-30

Applicant: CREE, INC.

Inventor： Michael LEUNG ,  Ben JACOBSON ,  Eric TARSA ,  James IBBETSON ,  Claudio GIROTTO ,  Bernd KELLER

IPC: F21S8/00 ,  F21V14/02 ,  F21S8/02 ,  F21V7/04 ,  H05B33/08 ,  F21K9/61

Abstract: A light fixture, e.g., as an artificial skylight, in which light within a region defined by x, y color coordinates (0.37, 0.34), (0.35, 0.38), (0.15, 0.20), and (0.20, 0.14) exits a first light engine, and light within a region defined by coordinates (0.29, 0.32), (0.32, 0.29), (0.41, 0.36), (0.48, 0.39), (0.48, 0.43), (0.40, 0.41), and (0.35, 0.38) exits a second light engine. Also, light fixtures in which a second light engine comprises a sidewall, and light exiting a first light engine passes through space defined by the sidewall; light fixtures in which first and second light engines are able to output light providing different CS values at a luminance; light fixtures in which light incident on a surface of the fixture and cumulative light exiting the fixture have different color points; light fixtures in which light distribution characteristics of light engines differ; and/or other features. Also, methods.

公开(公告)号：US20170363795A1

公开(公告)日：2017-12-21

申请号：US15186222

申请日：2016-06-17

Applicant: Cree, Inc.

Inventor： Claudio GIROTTO ,  Theodore LOWES ,  Chandan BHAT ,  Mark YOUMANS

IPC: F21V8/00

Abstract: In view of delamination and other failure mechanisms, bonded assemblies are described herein comprising one or more reinforcement members reducing deflection of the assemblies under applied flexural loads, wherein the reinforcement members do not materially interfere with the functionality of the bonded assemblies. In one aspect, waveguide assemblies are provided. A waveguide assembly, in some embodiments, comprises a waveguide body and light extraction elements bonded to the waveguide body, wherein at least one reinforcement member is coupled to the waveguide assembly at one or more locations to reduce deflection of the waveguide assembly under an applied flexural load.