Industry Patents
Patent: 4697227
Control System for Variable Parameter Fixtures
(Click image for PDF of full patent)
| Patent Number: |
4697227 |
| Title: |
Control System for Variable Parameter Fixtures |
| Abstract: |
The application discloses an improved system for the control of a plurality
of light projectors each generating a beam suitable for entertainment
lighting and each provided with means to vary a plurality of parameters of
the beam and with means to conform capable of cooperating to produce a
desired adjustment of the beam when provided with a corresponding desired
parameter value. The improved system disclosed employs a plurality of
local control systems, each with its own local short-term memory, and
means are provided for entering desired parameter values, and for storing
said values for each of a plurality of desired lighting effects in the
short-term memory of the local control system, such that they are each
associated with at least one second value which identifies the desired
lighting effect. Each of the local control systems has at least one input,
and will output a stored parameter value to the means to conform when the
second value with which that stored parameter value is associated is
provided at said input. A means for selecting, which is capable of
producing a plurality of such second values identifying a desired lighting
effect to be reproduced, is coupled to said inputs of a plurality of local
control systems, preferably by means of a serial data link. Preferably one
such local control system is provided for each controlled fixture or
device.
|
| Country of Issue: |
US |
| First Named Inventor: |
Callahan |
| Assignee: |
|
| Continuation or Divisional of: |
4527198 |
| International Classification: |
F21V 21/00 |
| US Classification: |
362/233 |
| Issue Date: |
09-29-1987 |
| Filing Date: |
07-01-1985 |
| Application : |
750873 |
| Notes: |
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| Link to Patent at freepatentsonline.com: |
4697227 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
4697227 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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