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1. WO2022046504 - LINEAR LIGHTING WITH SELECTABLE LIGHT OUTPUT

Publication Number WO/2022/046504
Publication Date 03.03.2022
International Application No. PCT/US2021/046636
International Filing Date 19.08.2021
IPC
F21S 4/20 2016.1
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
F21Y 103/10 2016.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V124
103Elongate light sources, e.g. fluorescent tubes
10comprising a linear array of point-like light-generating elements
F21Y 115/10 2016.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V124
115Light-generating elements of semiconductor light sources
10Light-emitting diodes
H05B 45/325 2020.1
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes
30Driver circuits
32Pulse-control circuits
325Pulse-width modulation
CPC
F21S 4/20
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
F21Y 2103/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
2103Elongate light sources, e.g. fluorescent tubes
10comprising a linear array of point-like light-generating elements
F21Y 2115/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
2115Light-generating elements of semiconductor light sources
10Light-emitting diodes [LED]
H05B 45/325
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes [LED]
30Driver circuits
32Pulse-control circuits
325Pulse-width modulation [PWM]
Applicants
  • ELEMENTAL LED, INC. [US]/[US]
Inventors
  • IRONS, Travis
Agents
  • MCALEAVEY, Andrew
  • HOLLM, Jonathan
  • KATO, Natsuko
  • MIYAGAWA, Yoshio
Priority Data
63/069,87525.08.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) LINEAR LIGHTING WITH SELECTABLE LIGHT OUTPUT
(FR) ÉCLAIRAGE LINÉAIRE AVEC SORTIE DE LUMIÈRE SÉLECTIONNABLE
Abstract
(EN) Linear lighting for which the light output is selectable among two or more predetermined options using onboard circuitry is disclosed. In this linear lighting, the onboard input-side power circuit for the linear lighting has multiple branches. One branch of the input-side power circuit directs all power applied to its solder pad directly to the LED light engines. The other branches of the input-side power circuit have components in them that moderate or control the effective light output of the LED light engines. For example, each circuit branch that offers a reduced light output may include a pulse-width modulation (PWM) oscillator circuit that reduces the duty cycle of the LED light engines. A working embodiment may have, e.g., one circuit branch that produces 100% of rated light output, one circuit branch that produces 50% of rated light output, and one circuit branch that produces 25% of rated light output.
(FR) L'invention divulgue un éclairage linéaire pour lequel la sortie de lumière peut être sélectionnée, parmi au moins deux options prédéterminées, à l'aide de circuits embarqués. Dans cet éclairage linéaire, le circuit de puissance côté entrée embarqué pour l'éclairage linéaire a de multiples branches. Une branche du circuit de puissance côté entrée dirige toute la puissance appliquée à son plot de soudure directement aux moteurs de lumière à DEL. Les autres branches du circuit de puissance côté entrée ont des composants internes qui modèrent ou commandent la sortie de lumière efficace des moteurs de lumière à DEL. Par exemple, chaque branche de circuit qui offre une sortie de lumière réduite peut comprendre un circuit oscillateur à modulation de largeur d'impulsions (PWM) qui réduit le rapport cyclique des moteurs de lumière à DEL. Un mode de réalisation de travail peut avoir, par exemple, une branche de circuit qui produit 100 % de sortie de lumière nominale, une branche de circuit qui produit 50 % de sortie de lumière nominale et une branche de circuit qui produit 25 % de sortie de lumière nominale.
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