Industry Patents

Patent: 8444295

Optical System for Theatrical and Stage Lighting

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Patent Number: 8444295 
Title: Optical System for Theatrical and Stage Lighting 
Abstract:

Various optical system embodiments produce a narrow beam of focused or unfocused light using a compound parabolic concentrator, lens system, and high flux density solid-state light source. Various system embodiments include a solid state light source configured to emit light, and a compound parabolic concentrator having a smaller opening and a larger opening opposite the smaller opening, wherein the light source and the concentrator are operationally positioned with respect to each other for light from the light source to enter the smaller opening of the concentrator and exit the larger opening of the concentrator as a narrower beam of light. Some embodiments include an imaging stage operationally positioned with respect to the concentrator to receive the narrower beam of light at an image plane and relay an image plane to a far field target.  

Country of Issue: US 
First Named Inventor: Young, Stangeland 
Assignee: Prism Projection 
Continuation or Divisional of:  
International Classification: F21V 5/00 
US Classification: 362/235 
Issue Date: 05-21-2013 
Filing Date: 06-04-2010 
Application : 12/794384 
Notes:  
Link to Patent at freepatentsonline.com: 8444295 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 8444295 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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