Industry Patents
Patent: 6982529
Method of Lamp Replacement Warning For Image Projection Lighting Devices
(Click image for PDF of full patent)
| Patent Number: |
6982529 |
| Title: |
Method of Lamp Replacement Warning For Image Projection Lighting Devices |
| Abstract: |
An apparatus is provided including an image projection lighting device.
The image projection lighting device may be comprised of a base housing,
a yoke, and a lamp housing. The lamp housing may be comprised of a lamp
and a first light valve. The image projection lighting device may be
further comprised of a communications port, a processing system, and a
memory. A cutoff value representing an amount of accumulated operating
time at which the lamp may begin to operate improperly may be stored in
the memory. An accumulated value representing an actual accumulated
amount of operating time of the lamp may also be stored in the memory.
The processing system may prevent the lamp from operating when the
accumulated value is within a limit of the cutoff value, unless the
processing system grants a request for a variance.
|
| Country of Issue: |
US |
| First Named Inventor: |
Belliveau |
| Assignee: |
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| Continuation or Divisional of: |
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| International Classification: |
F21V 33/00 |
| US Classification: |
315/316 |
| Issue Date: |
01-03-2006 |
| Filing Date: |
12-31-2003 |
| Application : |
10/750398 |
| Notes: |
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| Link to Patent at freepatentsonline.com: |
6982529 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6982529 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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