Industry Patents
Patent: 6220731
Cyclorama Light
(Click image for PDF of full patent)
| Patent Number: |
6220731 |
| Title: |
Cyclorama Light |
| Abstract: |
A cyclorama light includes a housing having generally opaque rear, bottom
and side walls and an open front wall defining a window that extends from
a region proximate to the upper end of the rear wall and a region
proximate to the front end of the bottom wall and generally extending
between the side walls. The housing defines a housing axis generally
parallel to the rear and bottom walls and normal to the side walls. An
elongate reflector essentially extends between the side walls and is
mounted for rotary movements about the housing axis. An elongate lamp
having a lamp axis is mounted on the reflector to maintain the lamp axis
substantially coextensively with the housing axis, the reflector being
configured to direct light generated by the elongate lamp with a
predetermined intensity distribution through the window formed in the open
front wall in a direction which is a function of the rotational position
of the reflector about the housing axis. A filter is provided for covering
the window with a color filter material, as well as an adjustment means
for selectively adjusting the rotational position of the reflector about
the housing axis. The direction of projection of the light emitted from
the housing can thus be modified substantially independently of the
specific orientation of the housing.
|
| Country of Issue: |
US |
| First Named Inventor: |
Ryan |
| Assignee: |
Altman Stage Lighting |
| Continuation or Divisional of: |
|
| International Classification: |
F21V 21/26 |
| US Classification: |
362/373 |
| Issue Date: |
04-24-2001 |
| Filing Date: |
11-10-1998 |
| Application : |
09/189477 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
6220731 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6220731 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.
Disclaimer: This web site is not intended to offer comprehensive or sufficient
information to enable a full legal analysis of a patent or potential
infringement. The information provided on this web site is intended
as general information only, and is not intended to serve as legal
opinion, legal advice or as a substitute for legal counsel. If you
have a question about a specific factual situation, you should
contact an attorney directly
|
