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1. WO2020092717 - LIGHT GUIDE PANEL WITH ONBOARD DRIVER

Publication Number WO/2020/092717
Publication Date 07.05.2020
International Application No. PCT/US2019/059081
International Filing Date 31.10.2019
IPC
F21V 23/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
23Arrangement of electric circuit elements in or on lighting devices
02the elements being transformers or impedances
F21V 23/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
23Arrangement of electric circuit elements in or on lighting devices
04the elements being switches
F21K 9/61 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
9Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes or lasers
60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
61using light guides
H05B 45/3725 2020.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes
30Driver circuits
37Converter circuits
3725Switched mode power supply
H05B 45/20 2020.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes
20Controlling the colour of the light
F21S 4/28 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
4Lighting devices or systems using a string or strip of light sources
20with light sources held by or within elongate supports
28rigid, e.g. LED bars
Applicants
  • ELEMENTAL LED, INC. [US]/[US]
Inventors
  • LE BLANC, Christopher
  • MCALEAVEY, Andrew
Agents
  • MCALEAVEY, Andrew
  • KATO, Natsuko
Priority Data
16/356,49318.03.2019US
62/753,32231.10.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LIGHT GUIDE PANEL WITH ONBOARD DRIVER
(FR) PANNEAU DE GUIDAGE DE LUMIÈRE COMPRENANT UN CIRCUIT D'ATTAQUE EMBARQUÉ
Abstract
(EN)
LED-based light guide panels (LGPs) with an onboard driver are disclosed. The driver accepts power in a first form and convert it to a second form suitable for driving LED light engines. The driver may be a switched-mode power supply or a simpler driver architecture that is particularly adapted for LGP applications. In some embodiments, the driver may comprise a DC/DC converter. The driver may be placed in the frame of the LGP, or in a driver layer that lies beneath the light guide. In some embodiments, control elements may also be embedded within the frame. For example, the LGP may include a motion or occupancy sensor that changes the state of the LGP or turns it off when the area around the LGP is unoccupied. The LGP may also include an internal network interface that allows it to be controlled by an external system.
(FR)
L'invention concerne des panneaux de guidage de lumière basés sur des DEL (LGP) comprenant un circuit d'attaque embarqué. Le circuit d'attaque reçoit de l'énergie sous une première forme et la convertit en une seconde forme appropriée pour entraîner des moteurs à lumière à DEL. Le circuit d'attaque peut être une alimentation en mode commuté ou une architecture de circuit d'attaque plus simple qui est particulièrement adaptée à des applications LGP. Dans certains modes de réalisation, le circuit d'attaque peut comprendre un convertisseur CC/CC. Le circuit d'attaque peut être placé dans le cadre du LGP, ou dans une couche de circuit d'attaque située sous le guide de lumière. Dans certains modes de réalisation, des éléments de commande peuvent également être intégrés à l'intérieur du cadre. Par exemple, le LGP peut comprendre un capteur de mouvement ou d'occupation qui change l'état du LGP ou l'éteint lorsque la zone autour du LGP est inoccupée. Le LGP peut également comprendre une interface de réseau interne qui lui permet d'être commandé par un système externe.
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