| (19) |
 |
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(11) |
EP 3 670 146 A8 |
| (12) |
CORRECTED EUROPEAN PATENT APPLICATION |
|
Note: Bibliography reflects the latest situation |
| (15) |
Correction information: |
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Corrected version no 1 (W1 A1) |
| (48) |
Corrigendum issued on: |
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19.08.2020 Bulletin 2020/34 |
| (43) |
Date of publication: |
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24.06.2020 Bulletin 2020/26 |
| (22) |
Date of filing: 21.12.2018 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
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Designated Extension States: |
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BA ME |
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Designated Validation States: |
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KH MA MD TN |
| (71) |
Applicant: ESSILOR INTERNATIONAL |
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94220 Charenton-Le-Pont (FR) |
|
| (72) |
Inventors: |
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- TOKARSKI, Zbigniew
Dallas, TX 75234 (US)
- BEGG, Eric
Dallas, TX 75234 (US)
- BALASUBRAMANIAN, Srinivasan
Dallas, TX 75234 (US)
- CHIU, Hao-Wen
Dallas, TX 75234 (US)
|
| (74) |
Representative: Santarelli |
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49, avenue des Champs-Elysées
75008 Paris
75008 Paris (FR) |
|
| |
|
| (54) |
METHOD AND SYSTEM FOR PRODUCING A GRADIENT POLARISATION FILM |
(57) A system and method for manufacturing an ophthalmic lens is provided. The method
involves preparing a cross-polarization cancelling optical film for an optical article
comprising providing a film having at least a first section comprising a first edge,
a second section comprising a second edge, and a predetermined color intensity; providing
an apparatus, wherein the apparatus comprises at least a first roller and a second
roller, wherein the first roller and the second roller are configured to stretch at
least a portion of the film; and continuously and asymmetrically stretching at least
a portion of the film using the apparatus, while substantially maintaining the color
intensity of the film.