Invention Grant
- Patent Title: Luminaires utilizing optical waveguide
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Application No.: US16392978Application Date: 2019-04-24
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Publication No.: US11408572B2Publication Date: 2022-08-09
- Inventor: Jin Hong Lim , Curt Progl , Kurt Wilcox , 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: Withrow & Terranova, P.L.L.C.
- Main IPC: G02B6/24
- IPC: G02B6/24 ; F21S8/08 ; F21V21/116 ; F21V8/00 ; G02B6/26 ; G02B6/30 ; G02B6/32 ; G02B6/34 ; F21V5/00 ; F21V29/51 ; F21Y113/13 ; F21Y115/10 ; F21W131/103

Abstract:
A lighting device comprises a body of optically transmissive material exhibiting a total internal reflection characteristic, the body further comprising a light input surface for receiving light, a light extraction portion spaced from the light input surface, a light transmission portion disposed between the light input surface and the light extraction portion, and at least one light deflection surface for deflecting light toward the light extraction portion. Further in accordance with this aspect the light extraction portion comprises a first extraction surface for extracting light deflected by the at least one light deflection surface out of the body and a second extraction surface for extracting light other than light deflected by the at least one light deflection surface out of the body.
Public/Granted literature
- US20190250324A1 LUMINAIRES UTILIZING OPTICAL WAVEGUIDE Public/Granted day:2019-08-15
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