Lighting system, track and lighting module therefore

Patent metadata

Field	Value
Publication number	US-9822940-B2
Application number	US-201414772571-A
Country	US
Kind code	B2
Filing date	Mar 5, 2014
Priority date	Mar 7, 2013
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

A lighting system comprising a track having a first and a second rail, mutually extending equidistantly. Said first and second rail comprise a first respectively a second electrically conductive strip, mutually electrically isolated. A lighting module comprising a first and second electrical contact, which lighting module in mounted position rests by gravitational force on the first and second rail. When mounted the first and second electrical contact are in electrical contact with a respective one of the first and second electrically conductive strip. The lighting module is dismountable from the track by a single displacement of the lighting module in a direction against the direction of the gravitational force.

First claim

The invention claimed is:

1. A lighting system accommodating a light source and further comprising:
a track comprising at least a first and a second rail mutually extending equidistantly along an axis, said first and second rail are spaced apart by an opening defining a plane P and the first rail comprises a first electrically conductive strip and the second rails comprises a second electrically conductive strip, said strips are mutually electrically isolated,
at least one lighting module comprising a first and second electrical contact configured to make electrical contact with a respective one of the first and second electrically conductive strip when supported by a respective carrier side of both the first and the second rail, and comprising a base having a mutually opposing first and second side,
the lighting module being dismountable from the track by a displacement of the lighting module in a direction essentially perpendicular to plane P,
wherein the lighting module comprises the light source and wherein the lighting module is a lamp and in that the lighting module has a first light emission window in a first side and has a second light emission window in the second side of the lighting module for issuing light beams of mutually different characteristics during operation of the lighting system,
wherein the first and second light emission window each comprise a respective optical element which have mutually different optical characteristics.

2. The lighting system as claimed in claim 1 , said different optical characteristics are at least one of the group consisting of size, shape, total internal reflection, refractive and coloring properties.

3. The Lighting system as claimed in claim 1 , wherein the lighting module comprises at least two light sources and that each of the first and second light emission window is associated with a respective one of the light sources.

4. The Lighting system as claimed in claim 1 , wherein at least one light emission window is tilted with respect to the side in which it is present.

5. The Lighting system as claimed in claim 1 , wherein a spacing is present in between the rails and the electrical contacts to enable capacitive power transfer, preferably in a range of 50 kHz to 500 kHz, more preferably 100 kHz.

6. The Lighting system as claimed in claim 1 , wherein at least one, preferably all, of the lighting modules comprises a soft start circuit.

7. The Lighting system as claimed in claim 1 , wherein light characteristics of the light issued by the light sources are controllable with respect to intensity, spectral composition and/or distribution.

8. The Lighting system as claimed in claim 7 , wherein the controllable light sources have a receiver to receive input for setting a control level and have an activator to control the light characteristics of at least one neighboring light source.

9. The Lighting system as claimed in claim 1 , wherein the lighting module is passable through plane P via said opening.

10. The Lighting system as claimed in claim 1 , wherein the track has an elongated shape along the axis, the lighting module being freely shiftable over said track along the length axis.

11. The Lighting system as claimed in claim 1 , wherein the rails are embodied as heat sinks to dissipate heat generated by the lighting module.

12. Lighting system as claimed in claim 1 , wherein the lighting module has curved side walls or a combination of the first and second track has a wedge-shape, in mounted position said lighting module rests with its curved side walls on the rail and being tiltable around the axis while staying electrically connected.

13. The Lighting system as claimed in claim 1 , wherein the lighting module is provided with grooves that, in mounted position, grip around at least a part of a respective rail, optionally the grooves are present on both the first and second side of the lighting module to enable to flip the lighting module.

14. A Lighting module for use in the lighting system as claimed in claim 1 , the lighting module comprising a first and second electrical contact configured to make electrical contact with a respective one of the first and second electrically conductive strip when supported by a respective carrier side of both the first and second rail, and comprising a base having a mutually opposing first and second side and wherein the lighting module and wherein the lighting module is a lamp and in that the lighting module has a first light emission window in a first side and has a second light emission window in the second side of the lighting module for issuing light beams of mutually different characteristics during operation of the lighting system,
wherein the first and second light emission window each comprise a respective optical element which have mutually different optical characteristics.

Assignees

• Philips Lighting Holding Bv
• Philips Lighting Holding Bv

Inventors

• Bergman Anthonie Hendrik
• Dekker Tim
• Knaapen Bram
• Van Den Biggelaar Theodorus Johannes Petrus

Classifications

• G02B6/0011

  the light guides being planar or of plate-like form · CPC title

• F21S8/061

  with a non-rigid pendant, i.e. a cable, wire or chain · CPC title

• H01R25/147

  Low voltage devices, i.e. safe to touch live conductors · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21Y2105/00

  Planar light sources · CPC title