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  Fresnel, Augustin Jean Fresno  
CONTENTS · INDEX · ILLUSTRATIONS · BIBLIOGRAPHIC RECORD
   The American Heritage® Dictionary of the English Language: Fourth Edition.  2000.
 
Fresnel lens
 
SYLLABICATION:Fres·nel lens
PRONUNCIATION:  fr-nl
NOUN: A thin optical lens consisting of concentric rings of segmental lenses and having a short focal length, used primarily in spotlights, overhead projectors, and the headlights of motor vehicles.
ETYMOLOGY:After Augustin Jean Fresnel.
 
 
The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved.

CONTENTS · INDEX · ILLUSTRATIONS · BIBLIOGRAPHIC RECORD
  Fresnel, Augustin Jean Fresno  
 
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