US Patent 9370416 Refractive-diffractive lens
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Patent abstract
A multifocal lens device is disclosed. The device comprises a lens body being formed with a plurality of concentric annular zones separated by slanted steps. The concentric zones effect both diffraction and refraction of incident light, while the steps are substantially devoid of any diffractive or refractive power.
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Patent Inventor Names
Munavvar Tahir Hussain0
Sanjay Ram Swaroop Argal0
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US Patent 09370416 Refractive-diffractive lens US Patent 9370416 Refractive-diffractive lens
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Patent Number
093704160
Patent Number
93704160
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Patent Jurisdiction
Patent Number
093704160
Date of Patent
June 21, 2016
0Patent Application Number
133925740
Date Filed
August 25, 2010
0Official Website
Patent Primary Examiner
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US Patent 09370416 Refractive-diffractive lens
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Is a
Patent jurisdiction
Patent number
09370416
Date of patent
June 21, 2016
Patent application number
13392574
Date Filed
August 25, 2010
Patent primary examiner
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