Invention Grant
- Patent Title: Homogeneous color LED lighting device with wavelength dependent modifier on output surface of lightguide
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Application No.: US17917635Application Date: 2021-04-08
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Publication No.: US11947151B2Publication Date: 2024-04-02
- Inventor: James Gourlay , Marius Jankauskas
- Applicant: DESIGN LED PRODUCTS LIMITED
- Applicant Address: GB Livingston
- Assignee: Design LED Products Limited
- Current Assignee: Design LED Products Limited
- Current Assignee Address: GB Livingston
- Agency: FisherBroyles, LLP
- Priority: GB 05328 2020.04.09
- International Application: PCT/GB2021/050858 2021.04.08
- International Announcement: WO2021/205168A 2021.10.14
- Date entered country: 2022-10-07
- Main IPC: F21V8/00
- IPC: F21V8/00 ; B60G3/00
Abstract:
A lighting device includes a light guide having a light output surface, one or more LED packages having two or more spatially separated LED chips, and two or more wavelength dependent modification features located on the output surface of the light guide. Each wavelength dependent modification features is configured to modify the intensity of light from one or more of the LED chips to provide homogeneous colored light.
Public/Granted literature
- US20230185012A1 HOMOGENEOUS COLOUR LIGHTING DEVICE Public/Granted day:2023-06-15
Information query
