Industry Patents

Patent: 6621239

Method and Apparatus for Controlling the Temperature of a Multiparameter Light

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Patent Number: 6621239 
Title: Method and Apparatus for Controlling the Temperature of a Multiparameter Light 
Abstract: A multi-parameter light is a type of theater light that includes a lamp in combination with one or more optical components such as reflectors, lenses, filters, iris diaphragms, shutters, and so forth for creating special lighting effects, various electrical and mechanical components such as motors and other types of actuators, wheels, gears, belts, lever arms, and so forth for operating the optical components, suitable electronics for controlling the parameters of the multi-parameter light, and suitable power supplies for the lamp, motors, and electronics. Typically, the lamp is enclosed by the lamp housing, which also contains the other optical components and many of the electrical and mechanical components which operate them. As the lamp and the various components within the lamp housing generate a great deal of heat and as various environmental conditions such as ambient air temperature and humidity can affect the amount of heat dissipated by whatever cooling technique is used in the multi-parameter light, the temperature within the lamp housing is managed by controlling the amount of power furnished to the lamp in accordance with the temperature sensed by one or more thermal sensor(s) positioned in appropriate location(s) preferably inside the lamp housing or on one or more of the cooling system components. As the sensed temperature deviates from a desired temperature specification, the output of the power supply for the lamp is adjusted so that the heat generated by the lamp is modified in such a way as to bring the sensed temperature back into specification.  
Country of Issue: US 
First Named Inventor: Belliveau 
Assignee:  
Continuation or Divisional of:  
International Classification: H04Q 1/00 
US Classification: 315/312 
Issue Date: 09-16-2003 
Filing Date: 03-14-2000 
Application : 09/5242990 
Notes: High End Systems 
Link to Patent at freepatentsonline.com: 6621239 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 6621239 at Google Patents 

 

1. The Google Patents and World Patent Family links will likely not work until a few weeks
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