Industry Patents
Patent: 7654693
Absolute Fixture Positioning
(Click image for PDF of full patent)
| Patent Number: |
7654693 |
| Title: |
Absolute Fixture Positioning |
| Abstract: |
A lighting fixture having at least one internal processor and at least one
fixed element to which controllable moving elements are rotatably
fastened, one moving element having at least one light source that
generates a beam of light. Information concerning positions of moving
components in a lighting fixture is automatically achieved. Correct
position indication at start up is obtained without moving the components
to their end stops for finding set points for step motors by the
provision of at least one absolute encoding device, which encoding device
indicates the angular movement of a first input axel in relation to the
encoding device, which absolute encoding device has a gearbox with a
second internal axel, which first input axle drives a first toothed
timing wheel, intermeshing with a second toothed timing wheel that
rotates the second axel with a angular velocity different from the
angular velocity of the first input axle.
|
| Country of Issue: |
US |
| First Named Inventor: |
Rasmussen, Rasmussen |
| Assignee: |
Martin Professional |
| Continuation or Divisional of: |
|
| International Classification: |
F21V 21/00 |
| US Classification: |
362/249.07 |
| Issue Date: |
02-02-2010 |
| Filing Date: |
04-23-2008 |
| Application : |
12/107826 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7654693 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7654693 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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