Lighting system, track and lighting module therefore

Patent metadata

Field	Value
Publication number	US-2016018092-A1
Application number	US-201414772494-A
Country	US
Kind code	A1
Filing date	Mar 5, 2014
Priority date	Mar 7, 2013
Publication date	Jan 21, 2016
Grant date	—

Abstract

A lighting system comprising a track having a first and a second rail ( 5, 7 ), mutually extending equidistantly. Said first and second rail comprise a first respectively a second electrically conductive strip, mutually electrically isolated. A lighting module ( 17 ) 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

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 adapted 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 and track being free from mutual overhang to enable to dismount the lighting module from the track by a displacement in a direction essentially perpendicular to plane P, wherein the track comprises the light source, preferably the lighting module has a light incoupling surface facing towards the light source and light outcoupling surface at its first side.

2 . The Lighting system as claimed in claim 1 , at least one of the rails comprises at least one PCB on which at least one LED is mounted.

3 . The Lighting system as claimed in claim 1 , wherein the lighting module is an optic plate, preferably made from PMMA.

4 . The Lighting system as claimed in claim 1 , wherein the optic plate is provided with light outcoupling pattern at at least one of its first and second side.

5 . The Lighting system as claimed in claim 4 , wherein the lighting module has its electrical contacts at end parts that contact the strips, in mounted position of the lighting module on the rails said electrical contacts at a first and a second contact point connect to respectively an anode and to a cathode contact strip provided in the rails, to enable ignition of the light sources located in between said first and second contact point.

6 . The Lighting system as claimed in claim 1 , wherein the anode is located in the first rail and the cathode is located in the second rail, and that the lighting module on transverse side faces bridging the gap between the first and second rail and extending between the first and second side, is provided with connector strips to close an electrical circuit and to enable ignition of the light sources that are comprised in said electrical circuit.

7 . The Lighting system as claimed in claim 1 , wherein the light incoupling surface is the side face extending from the first side towards the second side and that facing towards said side face LEDs as the light sources are located on the rail at a respective rail wall extending from the carrier side normal to plane P along the axis.

8 . The Lighting system as claimed in claim 1 , wherein at least one of the rails comprises at least one reed and/or direct contact switch.

9 . The Lighting system as claimed in claim 1 , wherein the lighting system is AC driven and that LEDs as the light sources are grouped in pairs and electrically connected anti-parallel to a capacitor.

10 . The Lighting system as claimed in claim 1 , wherein the lighting system comprises at least one sensor.

11 . Lighting system as claimed in claim 1 , wherein the lighting system comprises a sensor and a detectable material, and that a combination of sensor and material is selected from:
Reflective material+optical reflection sensor; Magnetic strip+magnetic sensor, for example Hall sensor or Reed switch; Electrical conductive strip+connectors, for example pins that connect galvanic; Conductive strip+capacitive sensor; RF tag/transmitter in the module and detectors/receivers in the LED/rail.

12 . The Lighting system as claimed in claim 1 , wherein the lighting system comprises at least one LED provided with a light sensor.

13 . The Lighting system as claimed in claim 1 , wherein the lighting system comprises an automatic tuning circuit.

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

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

16 . A Track for use in the lighting system as claimed in claim 1 , 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 both the first and second comprises a first, continuously extending, electrically conductive strip and a second continuously extending, electrically conductive strip, said strips are mutually electrically isolated, wherein the track comprises a light source and comprises at least one of a sensor and an additional detectable material.

17 . A Lighting module for use in the lighting system as claimed in claim 1 , having two pairs of a first and second electrical contact at two corners of each end of the lighting module only and adapted to make electrical contact with a first electrically conductive strip and a series of light sources at a corner and with a second electrically conductive strip and the series of light sources at the other corner of each end 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 comprises at least one of a sensor and an additional detectable material extending over a first and/or second side face.

Assignees

• Koninkl Philips Nv

Inventors

• Knaapen Bram
• Bergman Anthonie Hendrik
• Dekker Tim

Classifications

• F21Y2113/00

  Combination of light sources · CPC title

• F21V23/06

  the elements being coupling devices {, e.g. connectors} · CPC title

• F21V29/70

  characterised by passive heat-dissipating elements, e.g. heat-sinks · CPC title

• F21V21/35 Primary

  with direct electrical contact between the supporting element and electric conductors running along the guiding element · CPC title

• F21V23/04

  the elements being switches (safety devices F21V25/00) · CPC title