Verfahren zur Erzeugung einer Mikrostruktur auf einem Film mittels einer Walze

Details

Veröffentlichungs-Nr.

EP3895867

Aktenzeichen

EP20315170

Anmeldetag

14. April 2020

Veröffentlichung

18. Juni 2025

Erteilung

18. Juni 2025

Rechtsraum

EP

IPC

B29C33/38B29C43/22B29C59/04B29D11/00// B29C33/42

Abstract

The present disclosure relates to a method of designing a spherical microstructure mold module (604 - 614) to be incorporated into a calendering roller (600) for generating a microstructure (108) on a planar surface (104), comprising calculating a first curvature (204) on a cross-sectional planar surface (202) for a first microstructure point of the spherical microstructure mold module, calculating a second curvature (210) of a spherical surface (102) of the spherical microstructure mold module, measuring a radius (214) of the spherical surface (102), the radius (214) being from the center of the spherical surface (102) to the first microstructure point, and determining a location of the microstructure (108) on the planar surface (104), the location being derived from the first curvature (204), the second curvature (210), and the radius (214).

Anmelder

Firma

ESSILOR INTERNATIONAL

Land

🇫🇷 Frankreich

Fachgebiete