Invention Grant
- Patent Title: Lighting devices having optical waveguides for controlled light distribution
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Application No.: US17672510Application Date: 2022-02-15
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Publication No.: US11655950B2Publication Date: 2023-05-23
- Inventor: Kurt Wilcox , Jin Hong Lim , Curt Progl , Steve Wilcenski , Zongjie Yuan
- Applicant: IDEAL INDUSTRIES LIGHTING LLC
- Applicant Address: US WI Racine
- Assignee: IDEAL INDUSTRIES LIGHTING LLC
- Current Assignee: IDEAL INDUSTRIES LIGHTING LLC
- Current Assignee Address: US WI Racine
- Agency: Nexsen Pruet, PLLC
- Agent J Clinton Wimbish
- The original application number of the division: US15192979 2016.06.24
- Main IPC: F21S8/08
- IPC: F21S8/08 ; F21V21/116 ; F21V8/00 ; G02B6/24 ; G02B6/26 ; G02B6/30 ; G02B6/32 ; G02B6/34 ; F21V5/00 ; F21V29/51 ; F21Y113/13 ; F21Y115/10 ; F21W131/103

Abstract:
Lighting devices having optical waveguides for controlled light distribution are provided. A lighting device includes a housing, a light emitter disposed in the housing, and a waveguide at least partially disposed in an opening of the housing. The waveguide includes a light input surface defining coupling features, wherein the light emitter is disposed adjacent the light input surface and emits light into the coupling features. The waveguide further includes a light transmission portion disposed between the light input surface and a light extraction portion, wherein light from the light emitter received at the light input surface propagates through the light transmission portion toward the light extraction portion. The waveguide further includes the light extraction portion, which comprises at least one light redirection feature and at least one light extraction feature that cooperate to generate a controlled light pattern exiting the lighting device.
Public/Granted literature
- US20220170603A1 Lighting Devices Having Optical Waveguides for Controlled Light Distribution Public/Granted day:2022-06-02
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