Industry Patents
Patent: 4338655
Luminaire Apparatus Including Expansible Reflector Means and Method of Reflecting Radiant Energy to Provide a Spot to Flood Configuration
(Click image for PDF of full patent)
| Patent Number: |
4338655 |
| Title: |
Luminaire Apparatus Including Expansible Reflector Means and Method of Reflecting Radiant Energy to Provide a Spot to Flood Configuration |
| Abstract: |
A luminaire apparatus includes a housing having a source of radiant energy
mounted therein, a rotatable light transmitting member supported at one
side of the housing and reflector means. The reflector means consists of a
stationary reflector body and expansible reflector means for controlling
the configuration of radiation energy projected through the light
transmitting member located between the stationary reflector body and the
light transmitting member. In one desirable form the stationary reflector
body is provided with a specular surface which projects reflected light in
a spot configuration while the expansible reflector means is provided with
light diffusing surfaces which are operable to progressively modify the
spot configuration to provide a flood configuration. In another desirable
form the specular and diffusing surfaces may be interchanged so that the
stationary reflector body produces a flood configuration and the
expansible reflector means is operable to modify the flood configuration
to spot configuration. The expansible reflector means is engageable with the rotatable light
transmitting member and comprises a plurality of reflector surfaces which
are connected to one another.
|
| Country of Issue: |
US |
| First Named Inventor: |
Gulliksen, Hamilton |
| Assignee: |
Koehler Manufacturing |
| Continuation or Divisional of: |
|
| International Classification: |
F21V 7/16 |
| US Classification: |
362/281 |
| Issue Date: |
07-06-1982 |
| Filing Date: |
10-20-1980 |
| Application : |
198660 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
4338655 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
4338655 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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