Flexible substrate lighting fixtures

Patent metadata

Field	Value
Publication number	US-9618167-B2
Application number	US-201615170189-A
Country	US
Kind code	B2
Filing date	Jun 1, 2016
Priority date	Mar 6, 2013
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A lighting fixture can comprise a flexible substrate and an array of light emitting diodes (LEDs) coupled to the flexible substrate. In various embodiments, the array of LEDs can be disposed at one region of the flexible substrate, with another area of the flexible substrate free from LEDs. Light emitted from the LED array can be incident upon the area that is free from LEDs, and that area can manage the incident light to achieve a desired effect. Accordingly, the flexible substrate can filter, diffuse, refract, transmit, diffract, imprint information upon, or otherwise purposely manipulate light generated by associated LEDs The flexible substrate may be manipulated into different forms for different lighting fixtures styles and models and for different applications.

First claim

What is claimed is:

1. A lighting system, comprising:
a substrate comprising an array area and an optic area; and
an array of light emitting diodes (LEDs) mounted to the substrate in the array area,
wherein the substrate has sufficient flexibility and the array area and the optic area are disposed with respect to one another such that the substrate can be manipulated to position the optic area in front of the array of light emitting diodes to receive light emitted by the array of light emitting diodes.

2. The lighting system of claim 1 , wherein the optic area is configured to transmit the received light and produce illumination from the received light.

3. The lighting system of claim 1 , wherein the optic area comprises a scattering agent for diffusing the received light.

4. The lighting system of claim 1 , wherein the optic area comprises a color filter.

5. The lighting system of claim 1 , wherein the optic area comprises optical features for refracting the received light.

6. The lighting system of claim 1 , wherein manipulating the substrate comprises curling the substrate.

7. The lighting system of claim 1 , further comprising semi-conductive material printed or sputtered onto the substrate.

8. The lighting system of claim 1 , further comprising electrically conductive material printed or sputtered onto the substrate.

9. The lighting system of claim 1 , wherein the optic area comprises text or an image for conveying information when illuminated by the array of light emitting diodes.

10. The lighting system of claim 1 , wherein array of light emitting diodes comprises a first light emitting diode that emits light of a first color and a second light emitting diode that emits light of a second color that is different than the first color.

11. The lighting system of claim 1 , wherein the array of light emitting diodes comprises multiple types of light emitting diodes that emit different colors of light.

12. A light source comprising:
a continuous flexible substrate, the continuous flexible substrate comprising:
an array of light emitting diodes (LEDs) coupled to the continuous flexible substrate; and
an optic area,

wherein the continuous flexible substrate is formable such that when formed, light emitted from the array of LEDs passes through the optic area and exits the light source.

13. The light source of claim 12 , wherein the optic area comprises features that diffuse the light emitted from the array of LEDs.

14. The light source of claim 12 , wherein the optic area comprises text or an image printed on a surface of the optic area.

15. The light source of claim 12 , wherein the continuous flexible substrate has a thickness within a range from 0.1 mm to 1.5 mm.

16. The light source of claim 12 , wherein when formed, the continuous flexible substrate comprises a radius of curvature within a range from one-quarter of an inch to three-quarters of an inch.

17. The light source of claim 12 , wherein the optic area is colored with a pigment or dye.

18. A lighting system comprising:
a continuous flexible substrate that is formable into a cylindrical shape and that comprises an optic area and an array area; and
an array of light emitting diodes mounted to the array area of the continuous flexible substrate,
wherein the optic area comprises optical features for diffusing light emitted by the array of light emitting diodes via refraction.

19. The lighting system of claim 18 , wherein the optic area comprises a printed marking for imprinting information on light received from the array of light emitting diodes.

20. The lighting system of claim 18 , further comprising electrical components other than light emitting diodes attached to the continuous flexible substrate.

Assignees

• Cooper Technologies Co

Inventors

• Bohler Christopher Lee

Classifications

• F21V5/00

  Refractors for light sources (characterised by cooling arrangements F21V29/504) · CPC title

• H10W90/00

  Package configurations · CPC title

• F21Y2105/10

  comprising a two-dimensional [2D] array of point-like light-generating elements · CPC title

• F21K9/60

  Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title