Color controllable LED filament with a smooth transition

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United States of America Patent

PATENT NO 11774045
APP PUB NO 20220282840A1
SERIAL NO

17628430

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Abstract

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A LED filament (100) comprising an elongated substrate (110), a first region (120), a second region (130) and a third region (140) arranged between the first and second region. The first region comprises a plurality of LEDs (121) of a first LED type configured to emit light with a first CCT, arranged along at least one row on the substrate. The second region comprises a plurality of LEDs (131) of a second LED type configured to emit light with a second CCT, different from said first CCT, arranged along at least one row on the substrate. The third region (140) comprises at least one first LED (141) of the first LED type and at least one second LED (142) of the second LED type. A first LED of the at least one first LED of the third region is located next to a second LED of the second region. A second LED of the at least one second LED of the third region is located next to a first LED of the first region.

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Patent Owner(s)

Patent OwnerAddress
SIGNIFY HOLDING B VHIGH TECH CAMPUS 48 EINDHOVEN 5656AE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hikmet, Rifat Ata Mustafa Eindhoven, NL 354 1894
Van, Bommel Ties Horst, NL 277 997

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