LED color changing luminaire and track light system

• US 20050169015A1
• Filed: 09/20/2004
• Published: 08/04/2005
• Est. Priority Date: 09/18/2003
• Status: Abandoned Application

• Current Assignee: Altman Stage Lighting Company Incorporated
• Original Assignee: Altman Stage Lighting Company Incorporated
• Inventors: Tyler, Thomas P., Luk, John F., Ryan, John T., Reiter, Dean J.
• Application Number:
  US10/945,743
• Publication Number:
  US 20050169015A1
• Time in Patent Office: Days
• US Class Current: 362/648
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21V 21/35 with direct electrical contact between the supporting element and electric conductors running along the guiding element
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21W 2131/406 for theatres, stages or film studios
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01R 25/14 Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length supporting elements for lighting devices, displaceable along guiding elements and making electrical contact with conductors running along the guiding elements F21V21/35
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/357 specially adapted for retrofit LED light sources
• CPC Class Codes: H05B 47/18 via data-bus transmission

Abstract

A LED luminaire track lighting system includes an elongate track, having a number of longitudinal guideways, for attachment to a support surface, as well as a number of current conductors arranged within at least some of the guideways. The first of these conductors are power conductors and the second conductors are data conductors, the conductors being electrically isolated from each other. The lighting system further contains a first adapter for connection to a source of electrical power for the power conductors, and a second adapter for connection to a source of control data for application of data to the data conductors. There is at least one LED color-changing luminaire present in the system, and this luminaire contains a number of LEDs, each of which, when energized, generates a single color out of a discrete plurality of colors. A data converter converts data along the data lines to control the currents in the individual groups of color LEDs so that they create a desired composite color. Further, at least electrically, the LED color-changing luminaire is at least electrically connected to the power conductors and data conductors in the track.

Claims

1. A LED luminaire track lighting system comprising:

an elongate track suitable for attachment to a support surface, said track including a plurality of longitudinal guideways;

a plurality of current conductors arranged in at least some of said longitudinal guideways, at least a first number of conductors being power conductors and a second number of conductors being data conductors, said conductors being electrically isolated from each other;

adapter means connected to a source of power for applying electrical power to said power conductors and connected to a source of control data for applying power to said data conductors;

at least one LED color changing luminaire including a plurality of LEDs, each generating one of a discrete plurality of colors when energized;

data converter means for converting data on said data lines to control currents for each individual group of color LEDs to create a desired composite color; and

connecting means for at least electrically connecting at least one LED color-changing luminaire to said power conductors and data conductors within said track.