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Meaning of FRESNEL LENS

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WordNet Dictionary
 
 Definition: [n]  lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length
 
 See Also: headlamp, headlight, lens, lens system, searchlight

 

 

Webster's 1913 Dictionary
 
 Definition: 
\Fres`nel" lens"\ [See {Fresnel lamp}.] (Optics)
See under {Lens}.
 

 

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