THIN FILM LAMINATES HAVING CONTROLLED STRAIN

A polariser film (1010) comprising PET or PVDF for a spectacle lens is curved within a press mould having a curved pressing stamp (1020) with dimensions much larger than the final spectacle lens; the strained edges of the film are cut-off after curving which leads to lower deviations of the optical...

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Bibliographic Details
Main Authors LIAO, Christopher Yuan Ting, NOBLE, Hannah, ELABBASI, Nagi Hosni, YE, Sheng, OUDERKIRK, Andrew John
Format Patent
LanguageEnglish
French
German
Published 06.03.2024
Subjects
CONTACT LENSES
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:A polariser film (1010) comprising PET or PVDF for a spectacle lens is curved within a press mould having a curved pressing stamp (1020) with dimensions much larger than the final spectacle lens; the strained edges of the film are cut-off after curving which leads to lower deviations of the optical film axes from the start values;
Bibliography:Application Number: EP20220723877