Title:
CURVED LENSES AND RELATED METHODS
Document Type and Number:
WIPO Patent Application WO/2012/140503
Kind Code:
A3
Abstract:
Curved lenses and methods for making curved lenses are described. One embodiment of a method of making a curved lens includes curving a lens blank made of a linear polarizer layer laminated together with a plurality of polymeric layers. The lens blank is curved by heating and pressing the lens blank between a curved rigid member and a flexible member at a pressure and maintaining the pressure for a time sufficient to allow the lens blank to conform to the shape of the curved rigid member. Methods of the invention may be used to make curved lenses with different polarization properties and curvatures.
Inventors:
BOINARD ERIC (GB)
BOINARD PASCAL (GB)
BOINARD PASCAL (GB)
Application Number:
PCT/IB2012/000752
Publication Date:
December 13, 2012
Filing Date:
April 16, 2012
Export Citation:
Assignee:
POLAROID EYEWEAR A DIVISION OF STYLEMARK UK LTD (GB)
BOINARD ERIC (GB)
BOINARD PASCAL (GB)
BOINARD ERIC (GB)
BOINARD PASCAL (GB)
International Classes:
B29D11/00; B29C43/20; B29C51/08; B29C51/10; G02B5/30; G02B27/28
Foreign References:
| EP1217397A2 | 2002-06-26 | |||
| US20100193112A1 | 2010-08-05 | |||
| US20070270062A1 | 2007-11-22 | |||
| US20090165932A1 | 2009-07-02 |
Other References:
See also references of EP 2697049A2
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