Industry Patents
Patent: 6011640
High Intensity Lighting Projectors
(Click image for PDF of full patent)
| Patent Number: |
6011640 |
| Title: |
High Intensity Lighting Projectors |
| Abstract: |
A high intensity light projector for stage, architectural and similar
applications includes a controllable image quality projection gate
providing advanced visual effects. The projection gate, capable of
selectively scattering or transmitting incident light, may be constructed
of an array of scattering liquid crystal material in combination with
infrared and ultraviolet reduction means which provide in the high
intensity beam, a stable thermal environment by minimizing the absorption
of light by the projection gate. Additional thermal efficiency is provided
by supplemental cooling means. Color control is also provided in the form
of dichroic filter wheels forming cooperating adjustable low, high and
band width filters including saturation control. A color measuring
feedback sensor is also provided. An intensity measuring feedback sensor
controls a spatially-modulated, variable-density, reflectively-coated
dimming wheel. A programmable gobo system has provisions for gobo
selection, orientation, and rotation.
|
| Country of Issue: |
US |
| First Named Inventor: |
Hutton |
| Assignee: |
Vari-Lite |
| Continuation or Divisional of: |
5829868 |
| International Classification: |
G02B 26/02 |
| US Classification: |
359/234 |
| Issue Date: |
01-04-2000 |
| Filing Date: |
12-22-1997 |
| Application : |
08995506 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
6011640 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6011640 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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