Title:
POLARIZATION ABERRATION COMPENSATION FOR REFLECTIVE SURFACES
Document Type and Number:
WIPO Patent Application WO/2023/173006
Kind Code:
A3
Abstract:
Methods, devices and systems are described that reduce polarization aberration of a metal coated surface. An example optical device includes a multi-layer structure that includes a reflective layer having retardance and diattenuation over a particular range of wavelengths. The multi-layer structure also includes a uniaxial birefringent layer positioned above the reflective layer, and an anti-reflection layer positioned above the uniaxial birefringent layer. The uniaxial birefringent layer's thickness is selected to compensate for at least a portion of the retardance of the reflective layer over the particular range of wavelengths. The anti-reflection layer's thickness is selected to compensate for at least a portion of the diattenuation associated with the reflective layer over the particular range of wavelengths. The uniaxial birefringent layer can be a C-plate, and example reflective layers include an aluminum layer, a silver layer or a gold layer.
Inventors:
MILLER SAWYER (US)
JIANG LINAN (US)
PAU STANLEY (US)
JIANG LINAN (US)
PAU STANLEY (US)
Application Number:
PCT/US2023/064028
Publication Date:
November 09, 2023
Filing Date:
March 09, 2023
Export Citation:
Assignee:
UNIV ARIZONA (US)
International Classes:
G01M11/02; G02B5/30; G02B27/28; G02B1/08; G02B1/11; G02B27/09
Foreign References:
| US20210041711A1 | 2021-02-11 | |||
| US5805336A | 1998-09-08 | |||
| US20090290108A1 | 2009-11-26 | |||
| US20040036971A1 | 2004-02-26 | |||
| US20030099047A1 | 2003-05-29 | |||
| US20070258029A1 | 2007-11-08 |
Attorney, Agent or Firm:
TEHRANCHI, Babak (US)
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