Refractive-diffractive lens

申请公布号：EP2290411(B1)

申请号：EP20100152384

申请日期：2010.02.02

申请公布日期：2012.05.09

申请人：

POLYMER TECHNOLOGIES INTERNATIONAL (EOU)

发明人：ARGAL, SANJAY RAM SWAROOP;HUSSAIN, MUNAVVAR TAHIR

分类号：G02B5/18;A61F2/16;G02C7/04;G02C7/06

主分类号：G02B5/18

摘要：<p>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.</p>

CIRCUITO INTERFACCIA PER CONTROLLO A DISTANZA DI UNA PABX.

NOUVEAUX DERIVES D'ACIDES ARYLOXYBENZOIQUES ET LEUR UTILISATION COMME HERBICIDES.

ADMINISTRATION OF DRUG FOR TRANSCUTANEOUS ABSORPTION

DEAERATOR

FREMGANGSMAATE FOR KONTROLLMAALING AV FORUTBESTEMTE DIMENSJONER LANGS EN FLATE

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FREMGANGSMAATE OG ANORDNING FOR OPPKOPLING AV EN SLUTTET RING GJENNOM EN TELEFONSENTRAL

ANORDNING FOR FLAMMEHOEVLING AV ET METALLARBEIDSSTYKKE

KOBLINGSANORDNING

FREMGANGSMAATE VED POLYMERISERING AV ETYLEN

SONDE

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