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    Tunable LED filament
    1.
    发明授权
    Tunable LED filament 有权

    公开(公告)号：US12104753B2

    公开(公告)日：2024-10-01

    申请号：US18222696

    申请日：2023-07-17

    申请人： SIGNIFY HOLDING B.V.

    发明人： Ties Van Bommel ,  Rifat Ata Mustafa Hikmet ,  Johannes Petrus Maria Ansems

    IPC分类号： F21K9/232 ,  F21K9/68 ,  F21Y103/10 ,  F21Y113/13 ,  F21Y115/10

    CPC分类号： F21K9/232 ,  F21K9/68 ,  F21Y2103/10 ,  F21Y2113/13 ,  F21Y2115/10

    摘要： The present invention relates to a color tunable and/or color temperature tunable LED filament (20, 22, 24), said LED filament comprising an elongated carrier (220), said elongated carrier comprising a first major surface (222) and a second major surface (224) arranged opposite to said first major surface, a plurality of LEDs (210) arranged in at least one linear array on said first surface of said elongated carrier, wherein the plurality of LEDs includes LEDs of different colors and/or different color temperatures, a first elongated transparent or substantially transparent layer (230) covering the plurality of LEDs on the first major surface and also at least partly covering said first major surface, and a first elongated light scattering layer (240), arranged to at least partially cover said first transparent or substantially transparent layer.

    LED FILAMENT
    2.
    发明公开
    LED FILAMENT 审中-公开

    公开(公告)号：US20240318791A1

    公开(公告)日：2024-09-26

    申请号：US18269779

    申请日：2021-12-21

    申请人： SIGNIFY HOLDING B.V.

    发明人： TIES VAN BOMMEL ,  RIFAT ATA MUSTAFA HIKMET

    IPC分类号： F21K9/232 ,  F21K9/64 ,  F21Y103/30 ,  F21Y113/17 ,  F21Y115/10

    CPC分类号： F21K9/232 ,  F21K9/64 ,  F21Y2103/30 ,  F21Y2113/17 ,  F21Y2115/10

    摘要： A light emitting diode, LED, filament (100, 310), comprising a plurality of light emitting diodes (110, 150, 155, 250, 255), LEDs, wherein the LED filament comprises a center axis, A, and elongates in a meandering shape in a first plane, P, wherein a first portion (120, 220) of the LED filament, which elongates along the center axis, A, comprises an array of the plurality of LEDs and an encapsulant (210) at least partially enclosing the array of the plurality of LEDs, and a second portion (140, 240) of the LED filament, which elongates along the center axis, A, comprises a distribution of LEDs (150, 155) of the plurality of LEDs, and wherein the first portion and the second portion of the LED filament are arranged on opposite sides with respect to the first plane, P.

    LED FILAMENT
    7.
    发明公开
    LED FILAMENT 审中-公开

    公开(公告)号：US20240218987A1

    公开(公告)日：2024-07-04

    申请号：US18562939

    申请日：2022-05-17

    申请人： SIGNIFY HOLDING B.V.

    发明人： TIES VAN BOMMEL

    IPC分类号： F21K9/232 ,  F21K9/68 ,  F21Y113/17 ,  F21Y115/10 ,  H01L25/075

    CPC分类号： F21K9/232 ,  F21K9/68 ,  H01L25/0753 ,  F21Y2113/17 ,  F21Y2115/10

    摘要： A light emitting diode, LED, filament (100) arranged to emit LED filament light is provided. The LED filament comprises a LED filament (110), elongating along an axis, A, comprising array (s) (120) of a plurality of LEDs (130) arranged to emit LED light (140), and an encapsulant (150) enclosing the array(s) of the LEDs, wherein the encapsulant comprises a light-transmissive material. The LED filament further comprises an elongated reflector (160) having a first reflectivity, R1, arranged to reflect the LED light, wherein the reflector, by partially enclosing a cross-section, CB, perpendicular to the axis, A, of the LED filament in a radial direction, R, partially encloses the encapsulant along the LED filament, whereby the reflector defines at least one opening (180) along the LED filament, wherein the encapsulant is not covered by the reflector along the at least one opening.

    Dimmable helix LED filament arrangement and lamp
    8.
    发明授权
    Dimmable helix LED filament arrangement and lamp 有权

    公开(公告)号：US11985738B2

    公开(公告)日：2024-05-14

    申请号：US17908491

    申请日：2021-02-22

    申请人： SIGNIFY HOLDING B.V.

    发明人： Ties Van Bommel ,  Rifat Ata Mustafa Hikmet

    IPC分类号： H05B45/10 ,  F21K9/232 ,  F21Y115/10

    CPC分类号： H05B45/10 ,  F21K9/232 ,  F21Y2115/10

    摘要： The present disclosure relates to a LED filament system (100) comprising a LED filament arrangement (105) and a controller (120). The LED filament arrangement comprises a plurality of LED filaments (110a-c). The LED filaments are interwound around a common central axis (A) such that each LED filament has a spiral-shape. In the LED filament arrangement, two neighboring LED filaments differ by a translation pitch (t) along the central axis. The controller is configured to control power supply to the LED filaments such that at least one of the plurality of LED filaments is individually controllable. The controller is further configured to control the power supply to the LED filaments in a first mode, in which all of the LED filaments are in an on-state and the controller provides power supply above a first power level to the LED filaments. The controller is further configured to control the power supply to the LED filaments in a second mode in which at least one of the LED filaments is in an off-state.