ROLLING BLACKOUT ADJUSTABLE COLOR LED ILLUMINATION SOURCE

A system and method for producing white light in an adjustable light emitting diode (LED) illumination device is provided. The system and method varies the "off time for one of multiple sets of light emitting diodes (LEDs) or channels in succession in order to compensate for and stabilize the c...

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Main Authors KUENZLER, GLENN, ROBERTS, BRUCE
Format Patent
LanguageEnglish
French
Published 15.05.2018
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Abstract A system and method for producing white light in an adjustable light emitting diode (LED) illumination device is provided. The system and method varies the "off time for one of multiple sets of light emitting diodes (LEDs) or channels in succession in order to compensate for and stabilize the color-shifting or degradation that gradually occurs in LEDs. Each channel corresponds to a different color. By varying the "off time of only one channel at a time, the system efficiently utilizes the majority of the LEDs, thereby enabling the production of a more stable white light with fewer LEDs. L'invention concerne un système et un procédé de production de lumière blanche dans un dispositif d'éclairage à diode électroluminescente (DEL) ajustable. Le système et le procédé font varier le temps de coupure pour l'un de multiples ensembles de diodes électroluminescentes ou de canaux en succession afin de compenser et de stabiliser le décalage de couleur ou la dégradation qui se produit progressivement dans des DEL. Chaque canal correspond à une couleur différente. En faisant varier le temps de coupure d'un seul canal à la fois, le système utilise efficacement la majorité des DEL, ce qui permet la production d'une lumière blanche plus stable avec moins de DEL.
AbstractList A system and method for producing white light in an adjustable light emitting diode (LED) illumination device is provided. The system and method varies the "off time for one of multiple sets of light emitting diodes (LEDs) or channels in succession in order to compensate for and stabilize the color-shifting or degradation that gradually occurs in LEDs. Each channel corresponds to a different color. By varying the "off time of only one channel at a time, the system efficiently utilizes the majority of the LEDs, thereby enabling the production of a more stable white light with fewer LEDs. L'invention concerne un système et un procédé de production de lumière blanche dans un dispositif d'éclairage à diode électroluminescente (DEL) ajustable. Le système et le procédé font varier le temps de coupure pour l'un de multiples ensembles de diodes électroluminescentes ou de canaux en succession afin de compenser et de stabiliser le décalage de couleur ou la dégradation qui se produit progressivement dans des DEL. Chaque canal correspond à une couleur différente. En faisant varier le temps de coupure d'un seul canal à la fois, le système utilise efficacement la majorité des DEL, ce qui permet la production d'une lumière blanche plus stable avec moins de DEL.
Author KUENZLER, GLENN
ROBERTS, BRUCE
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Snippet A system and method for producing white light in an adjustable light emitting diode (LED) illumination device is provided. The system and method varies the...
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SourceType Open Access Repository
SubjectTerms ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
Title ROLLING BLACKOUT ADJUSTABLE COLOR LED ILLUMINATION SOURCE
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