Invention Grant
- Patent Title: LED filament lamp comprising a control unit
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Application No.: US16975371Application Date: 2019-02-19
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Publication No.: US11293597B2Publication Date: 2022-04-05
- Inventor: Ties Van Bommel , Robert Jacob Pet , Rifat Ata Mustafa Hikmet
- Applicant: SIGNIFY HOLDING B.V.
- Applicant Address: NL Eindhoven
- Assignee: SIGNIFY HOLDING B.V.
- Current Assignee: SIGNIFY HOLDING B.V.
- Current Assignee Address: NL Eindhoven
- Agent Daniel J. Piotrowski
- Priority: EP18158870 20180227
- International Application: PCT/EP2019/054046 WO 20190219
- International Announcement: WO2019/166273 WO 20190906
- Main IPC: F21K9/232
- IPC: F21K9/232 ; H05B45/3577 ; H05B45/18 ; H05B45/20 ; F21Y113/10 ; F21Y115/10

Abstract:
A light emitting diode, LED, filament lamp (100), comprising a light emitting diode light source (110), comprising at least one first filament (120a), arranged to emit light having a first color temperature, at least one second filament (120b), arranged to emit light having a second color temperature, different from the first color temperature, wherein each of the first and second filaments comprises a substrate (130a, 130b) of elongated shape, wherein at least one light emitting diode (140a, 140b) is arranged on the substrate. The LED filament lamp further comprises a control unit (150) configured to control a first intensity of the light emitted from the first filament(s) and to control a second intensity of the light emitted from the second filament(s) according to at least one predetermined setting, in order to control the total color temperature of the light emitted from the LED filament lamp as a function of the predetermined setting(s).
Public/Granted literature
- US20210033247A1 LED FILAMENT LAMP COMPRISING A CONTROL UNIT Public/Granted day:2021-02-04
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