Industry Patents
Patent: 7423387
Apparatus and Method for Controlling Colour and Colour Temperature of Light Generated by a Digitally Controlled Luminaire
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| Patent Number: |
7423387 |
| Title: |
Apparatus and Method for Controlling Colour and Colour Temperature of Light Generated by a Digitally Controlled Luminaire |
| Abstract: |
The present invention provides a method and apparatus for controlling the
correlated colour temperature (CCT) or colour of light produced by an
array of light-emitting elements by providing multiple selectable paths
for the flow of drive current. The apparatus includes a primary path
comprising primary light-emitting elements, and one or more secondary
paths comprising secondary light-emitting elements that are used for
compensation or correction of the colour of light emitted by the primary
light-emitting elements. A plurality of control means, for example
switches are used to direct current through particular paths. During
operation, the drive current primarily flows through the primary
light-emitting elements and is redirected, periodically for example, to a
secondary path comprising light-emitting elements of a particular colour
that is desired in addition to the colour produced by the primary
light-emitting elements.
|
| Country of Issue: |
US |
| First Named Inventor: |
Robinson, Jungwirth |
| Assignee: |
TIR Technology |
| Continuation or Divisional of: |
|
| International Classification: |
B60Q 1/00 |
| US Classification: |
315/291 |
| Issue Date: |
09-09-2008 |
| Filing Date: |
11-23-2005 |
| Application : |
11/285980 |
| Notes: |
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| Link to Patent at freepatentsonline.com: |
7423387 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7423387 at Google Patents |
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