Polarisers and mass-production method

A method of mass producing polarisers comprises designing by rigorous diffraction theory an optimised grating profile, replicating the profile in a polymer or other substrate, and slope evaporating a metal onto the substrate. The angle of slope evaporation, the metal, and the thickness of the metal...

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Bibliographic Details
Main Authors SCHNIEPER, MARC, SOECHTIG, JUERGEN, ZCHOKKE, CHRISTIAN, GALE, MICHAEL T
Format Patent
LanguageEnglish
French
German
Published 09.10.2002
Edition7
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:A method of mass producing polarisers comprises designing by rigorous diffraction theory an optimised grating profile, replicating the profile in a polymer or other substrate, and slope evaporating a metal onto the substrate. The angle of slope evaporation, the metal, and the thickness of the metal are optimised for a given wavelength using rigorous diffraction theory. The polariser may be coated with a protective coating, such as an acrylic based lacquer or Magnesium Fluoride (MgF2). The optical effect of the coating is also taken into account in the design using rigorous diffraction theory.
Bibliography:Application Number: EP20020251725