Nonimaging optics : efficient design for illumination and solar concentration VI : 2-4 August 2009, San Diego, Californina, United States 
Roland Winston, Jeffrey M. Gordon, editors ; sponsored and published by SPIE 
 - Bellingham, WA  SPIE  2009 
 - 1 v. (various pagings) : ill. ; 28 cm 
<br/><br/> Previous conferences entitled: Nonimaging optics and efficient illumination systems. Includes bibliographical references and author index 
<br/><br/><label>ISBN: </label>9780819477132 
<br/><br/><label>ISSN: </label>2010459283 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric lighting - Congresses<br/>Lighting - Congresses<br/>Reflectors, Lighting - Congresses<br/>Solar collectors - Congresses
<br/><br/><label>Dewey Class. No.: </label>621.32 WIN