US 11,859,775 B2
Light-emitting diode filament arrangement comprising at least one bending unit
Ties Van Bommel, Horst (NL); and Rifat Ata Mustafa Hikmet, Eindhoven (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 17/761,560
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Sep. 17, 2020, PCT No. PCT/EP2020/075999
§ 371(c)(1), (2) Date Mar. 17, 2022,
PCT Pub. No. WO2021/053080, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 19198371 (EP), filed on Sep. 19, 2019.
Prior Publication US 2022/0221112 A1, Jul. 14, 2022
Int. Cl. F21K 9/232 (2016.01); F21Y 115/10 (2016.01); F21Y 107/70 (2016.01)
CPC F21K 9/232 (2016.08) [F21Y 2107/70 (2016.08); F21Y 2115/10 (2016.08)] 16 Claims
OG exemplary drawing
 
1. A light emitting diode, LED, filament arrangement, comprising:
an elongated, flexible LED filament having a plurality of LEDs arranged along the elongation of the LED filament; and
at least one bending unit having a body in which a channel is formed, said channel being at least partially curved;
wherein for each said bending unit, a portion of said LED filament is arranged within said channel of said bending unit, said bending unit being adapted to induce only a single bend in said LED filament, and to hold the LED filament in its bent form, and
wherein the length of the bending unit is 0.05 to 0.3 times the length of the LED filament.