IP Library Granted Patent US 11,168,862
Granted Patent B2
US 11,168,862 · App. 16/393,605 · Granted Nov 9, 2021

Flexible LED lighting strip with slanted LEDs

Inventors: Floris Maria Hermansz Crompvoets (Bunde, NL); Christian Kleijnen (Ell, NL)
Assignee: LUMILEDS LLC
F21S43/15F21S4/24F21S43/14F21S43/195F21Y2103/10F21Y2103/30F21Y2107/50F21Y2115/10
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Quick Facts
Patent No.
US 11,168,862
App. No.
16/393,605
Granted
Nov 9, 2021
Kind
B2
Abstract

The invention describes a flexible lighting strip for use in a vehicle signaling light. The flexible lighting strip comprises a multitude of light-emitting diodes. The flexible lighting strip is arranged to be bended around at least two, more preferably three linear independent axes. Light-emitting diodes of at least a first group of the light-emitting diodes are inclined with respect to a longitudinal extension of the flexible lighting strip such that surface normals of light exit surfaces of the first group of the light-emitting diodes enclose a first angle of more than 0° with corresponding surface normals of a light emission surface of the flexible lighting strip. The invention further relates to a light assembly comprising such a flexible lighting strip. The invention finally relates to a vehicle signaling light comprising such a vehicle light assembly.

Claims (16)

1. A flexible lighting strip for use in a vehicle signaling light comprising:

a carrier structure including a surface having a plurality of connecting sections and plurality of mounting sections, the plurality of mounting sections being inclined relative to the plurality of connecting sections with an angle of the incline being more than 0° and increasing with increasing curvature of the surface of the carrier structure; and

a plurality of light emitting diodes (LEDs) mounted on the mounting sections of the carrier structure, the plurality of LEDs including a first group of the plurality of LEDs having a light emission angle based on the angle of the incline.

2. The flexible lighting strip according to claim 1 , further comprising a second group of the plurality of LEDs mounted on the surface of the carrier structure, the second group of the plurality of LEDs corresponding to a second group of mounting sections at a second angle of the surface and having a light emission angle based on the angle of the incline and wherein the second angle is different than the angle.

3. The flexible lighting strip according claim 2 , further comprising a third group of the plurality of LEDs mounted on the surface of the carrier structure, the third group of the plurality of LEDs corresponding to a third group of mounting sections at different angles of the surface and having a light emission angle based on the angle of the incline, and the different angles change along a longitudinal extension of the flexible lighting strip.

4. The flexible lighting strip according to claim 1 ,

the carrier structure further comprising carrier elements and connection elements in an alternating arrangement, and the carrier elements are inclined with respect to the connection elements.

5. The flexible lighting strip according to claim 4 , wherein the carrier elements and the connection elements are arranged in a saw tooth arrangement.

6. The flexible lighting strip according to claim 1 , the carrier structure further comprising an anode track and a cathode track for supplying electrical power to the plurality of light-emitting diodes.

7. The flexible lighting strip according to claim 1 , wherein the light-emitting diodes are embedded in a flexible translucent material.

8. The flexible lighting strip according to claim 7 , wherein the translucent material is comprised by a light guiding structure, and wherein the light guiding structure is framed by a frame structure such that light emitted by the light-emitting diodes during operation of the flexible lighting strip leaves the light guiding structure via an opening of the frame structure.

9. The flexible lighting strip according to claim 1 , further comprising a diffusor, wherein the diffusor is arranged to change a light distribution of light emitted by the light-emitting diodes during operation of the flexible lighting strip.

10. The flexible lighting strip according to claim 9 , wherein the diffusor is arranged such that light outcoupling of light emitted by the light-emitting diodes is weighted in a direction perpendicular to the surface normal of the light emission surface of the flexible lighting strip.

11. The flexible lighting strip according to claim 1 , wherein the carrier structure is capable of bending in at least two linear independent axes.

12. The flexible lighting strip according to claim 1 , wherein the carrier structure is capable of bending in at least three linear independent axes.

13. The flexible lighting strip according to claim 1 , wherein the surface of the carrier structure comprises a flexible base structure.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2025
From: LUMILEDS LLC
To: LUMILEDS SINGAPORE PTE. LTD.
Reel/Frame 071888/0086 →
RELEASE OF SECURITY INTEREST Recorded Jan 29, 2025
From: SOUND POINT AGENCY LLC
To: LUMILEDS LLC; LUMILEDS HOLDING B.V.
Reel/Frame 070046/0001 →
SECURITY INTEREST Recorded Jan 5, 2023
From: LUMILEDS LLC; LUMILEDS HOLDING B.V.
To: SOUND POINT AGENCY LLC
Reel/Frame 062299/0338 →
PATENT SECURITY AGREEMENT Recorded Dec 9, 2022
From: LUMILEDS, LLC
To: DEUTSCHE BANK AG NEW YORK BRANCH
Reel/Frame 062114/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2021
From: LUMILEDS HOLDING B.V.
To: LUMILEDS LLC
Reel/Frame 056932/0105 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 24, 2019
From: CROMPVOETS, FLORIS MARIA HERMANSZ; KLEIJNEN, CHRISTIAN
To: LUMILEDS HOLDING B.V.
Reel/Frame 049279/0525 →