Industry Patents
Patent: 7319294
Metal Halide High Pressure Discharge Lamp
(Click image for PDF of full patent)
| Patent Number: |
7319294 |
| Title: |
Metal Halide High Pressure Discharge Lamp |
| Abstract: |
In the metal halide high-pressure discharge lamp for stage, film and
television lighting systems and for projection technology and effect
lighting, the discharge vessel contains dysprosium and cesium as fill
metals for the metal halides. Optimum results for dimmability, arc
instability and color rendering are achieved if the fill additionally
includes 0.12 to 3.8 .mu.mol of vanadium and if appropriate 0.05 to 1.0
.mu.mol of zirconium per ml of vessel volume. These metals achieve
improved color rendering, in particular red rendering, with an Ra of from
70 to 95 and an R.sub.9 of from 45 to 90.
|
| Country of Issue: |
US |
| First Named Inventor: |
Golling |
| Assignee: |
Patent-Treuhand-Gesellschaft |
| Continuation or Divisional of: |
|
| International Classification: |
H01J 61/16 |
| US Classification: |
313/637 |
| Issue Date: |
01-15-2008 |
| Filing Date: |
06-06-2006 |
| Application : |
11/447149 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7319294 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7319294 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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