Carpet back lighting system

• US 8,894,233 B2
• Filed: 02/08/2010
• Issued: 11/25/2014
• Est. Priority Date: 02/10/2009
• Status: Expired due to Fees

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Van Herpen, Maarten Marinus Johannes Wilhelmus, Dekker, Tim
• Primary Examiner(s): MAY, ROBERT J
• Application Number:
  US13/147,718
• Publication Number:
  US 20110292641A1
• Time in Patent Office: 1,751 Days
• Field of Search: 362/153
• US Class Current: 362/153
• CPC Class Codes: D06N 2209/08 having optical properties
• CPC Class Codes: D06N 7/0036 characterised by their backing, e.g. secondary backing, back-sizing
• CPC Class Codes: D06N 7/0071 characterised by their backing, e.g. pre-coat, back coating, secondary backing, cushion backing
• CPC Class Codes: F21S 8/032 the surface being a floor or like ground surface, e.g. pavement
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 33/0004 Personal or domestic articles
• CPC Class Codes: F21V 33/006 General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols

Abstract

The invention provides a carpet back lighting system comprising a carpet back lighting unit having a lighting unit front face and a unit back face, wherein the lighting unit front face comprises a light source, arranged to generate light, and accompanying optics. The carpet back lighting system is suitable as back lighting at a carpet unit back side of a light transmissive carpet unit selected from the group consisting a carpet and a carpet tile. Further, the optics are suitable to be arranged to guide light into the light transmissive carpet unit, and wherein the optics are suitable to be arranged to penetrate into at least part of the light transmissive carpet unit.

Claims

1. A carpet back lighting system suitable for use as back lighting at a carpet unit back side of a light transmissive carpet unit, comprising:

a carpet back lighting unit having a lighting unit front face comprising a plurality of light sources each arranged to generate light and at least one of said plurality of light sources comprising;

accompanying optics, wherein the optics are arranged to guide the light into the light transmissive carpet unit, said optics comprising at least one penetration member for facilitating the penetration of the optics into at least part of the light transmissive carpet unit, and

a heating element in proximity to the at least one penetration member for heating at least a portion of the light transmissive carpet unit.

2. The carpet back lighting system according to claim 1, wherein the optics comprise a material selected from the group consisting of organic and inorganic transmissive materials.

3. The carpet back lighting system according to claim 1, wherein the at least one penetration member is a pointed top face.

4. The carpet back lighting system according to claim 1, wherein the at least one penetration member has a shape selected from the group consisting of conical, pyramidal, cylindrical and cuboidal.

5. The carpet back lighting system according to claim 1, wherein the heating element is arranged at at least part of an external face of the optics.

6. The carpet back lighting system according to claim 1, wherein the light source comprises a light emitting diode.

7. The carpet back lighting system according to claim 1, comprising a substrate comprising the light source.

8. The carpet back lighting system according to claim 7, wherein the substrate has a maximum height (h1) of at maximum 1 mm, and wherein the lighting unit, including optional optics, has a total maximum height (h2) of at maximum 3 mm.

9. The carpet back lighting system according to claim 1, wherein the carpet back lighting system comprises a plurality of light sources.

12. A light transmissive carpet tile comprising one or more recesses, arranged to at least partly accommodate optics of a lighting unit of a carpet back lighting system according to claim 1.

10. A carpet structure comprising an arrangement of a carpet back lighting system for use as back lighting at a carpet unit back side of a light transmissive carpet unit, the carpet back lighting system comprising:

a carpet back lighting unit having a lighting unit front face comprising a light source arranged to generate light,

accompanying optics,

wherein the optics are arranged to guide the light into the light transmissive carpet unit, said optics comprising at least one penetration member for facilitating the penetration of the optics into at least part of the light transmissive carpet unit, and

a heating element in proximity to the at least one penetration member for heating at least a portion of the light transmissive carpet unit,

wherein a lighting unit front face of the lighting unit and a carpet unit back side of the light transmissive carpet unit are adjacent,

wherein the at least one penetration member penetrates at least part of the light transmissive carpet unit, and wherein the light transmissive carpet unit is arranged to transmit at least part of the light travelling in a direction from the carpet unit back side to the carpet unit front face.

11. The carpet structure according to claim 10, wherein the light transmissive carpet unit comprises a pre-shaped recess arranged to at least partly accommodate the optics.

13. A method for the installation of a carpet structure, comprising:

arranging a carpet back lighting system at a predetermined location for use as back lighting at a carpet unit back face of a carpet unit, said carpet back lighting system comprising;

a carpet back lighting unit having a lighting unit front face comprising a light source arranged to generate light, and

accompanying optics, wherein the optics are arranged to guide the light into the carpet unit, and to penetrate into at least part of the light transmissive carpet unit,

arranging the carpet unit back face of the carpet unit to the lighting unit front face of the carpet back lighting system and applying pressure to at least part of the carpet unit to facilitate penetration of at least one penetration member into at least part of the carpet unit, and

applying heat to the light transmissive carpet unit to further facilitate penetration of the at least one penetration member.

14. The method according to claim 13, wherein the step of applying heat is performed by a heating element arranged at at least part of an external face of the optics, and wherein while applying pressure, the heating element is heated.

15. The method according to claim 13, wherein the optics comprise a material selected from the group consisting of organic and inorganic transmissive materials.

16. The method according to claim 13, wherein the at east one penetration member is a pointed top face.

17. The method according to claim 13, wherein the at least one penetration member has a shape selected from the group consisting of conical, pyramidal cylindrical and cuboidal.

18. The method according to claim 13, wherein the light source comprises a light emitting diode.

19. The method according to claim 13, wherein the carpet back lighting system further comprises a plurality of light sources.

20. A method for the installation of a carpet structure, comprising:

arranging a carpet back lighting system at a predetermined location for use as back lighting at a carpet unit back face of a carpet unit, said carpet back lighting system comprising;

a carpet back lighting unit having a lighting unit front face comprising a light source arranged to generate light, and

accompanying optics, wherein the optics are arranged to guide the light into the carpet unit, and to penetrate into at least part of the light transmissive carpet unit, and

arranging the carpet unit back face of the carpet unit to the lighting unit front face of the carpet back lighting system and applying pressure to at least part of the carpet unit to facilitate penetration of the optics into at least part of the carpet unit, wherein the optics further comprise a heating element arranged at at least part of an external face of the optics, and wherein while applying pressure, the heating element is heated.