公开(公告)号：AT288339T

公开(公告)日：2005-02-15

申请号：AT02290853

申请日：2002-04-05

Applicant: ESSILOR INT

Inventor： BERNARD JOEL ,  JEANNIN CHRISTOPHE ,  HUGUET JOEL

IPC: B24B13/01 ,  B24D7/16

Abstract: A tool for polishing an optical surface of a lens includes a rigid support including a support surface, a first layer called the buffer made from an elastic material and covering at least part of the support surface, and a second layer called the polisher and covering at least part of the buffer. The buffer has a first surface adhering to the support surface and a second surface opposite the first surface. The polisher has a first surface adhering to the second surface of the buffer and a second surface called the polishing surface opposite the first surface and adapted to polish the optical surface of the lens by rubbing against it. The polishing surface is a toric surface and, to be able to polish an atoric optical surface, the buffer is adapted to be compressed elastically and the polisher is adapted to be deformed to espouse the atoric surface. Applications include polishing atoric optical surfaces.

公开(公告)号：FR2823143A1

公开(公告)日：2002-10-11

申请号：FR0104872

申请日：2001-04-10

Applicant: ESSILOR INT

Inventor： BERNARD JOEL ,  HUGUET JOEL ,  JEANNIN CHRISTOPHE

IPC: B24B13/01 ,  B24D7/16 ,  B24B13/00

Abstract: The polishing tool (5) for an optical surface (3) of a lens (1) comprises a rigid support (6). A first elastic material buffer layer (9) covers a part of the support surface (8). A second polishing layer (10) covers a part of the buffer layer.

公开(公告)号：FR2805767B1

公开(公告)日：2002-06-21

申请号：FR0002849

申请日：2000-03-06

Applicant: ESSILOR INT

Inventor： PADIOU JEAN MARC ,  BERNARD JOEL ,  JEANNIN CHRISTOPHE

IPC: G02C13/00 ,  B23B5/00 ,  B23C3/16 ,  B23P15/00 ,  B23Q5/027 ,  B24B1/00 ,  B24B13/04 ,  B24B13/06 ,  B23C3/00

Abstract: A process is disclosed of fabricating a surface of an ophthalmic lens. The process includes a step a) of machining the surface by removing material by moving a cutting tool along a continuous trajectory to form grooves, two adjacent grooves being spaced by a constant pitch from 0.01 mm to 3 mm, and a step b) of smoothing the machined surface by moving a smoothing tool along a continuous trajectory formed of passes, two adjacent passes being spaced by a constant pitch from 0.2 mm to 3 mm, to effect band-pass filtering of the undulations of the surface between a low frequency corresponding to a surface envelope and a high frequency corresponding to a background roughness.

公开(公告)号：CA2373148A1

公开(公告)日：2001-09-13

申请号：CA2373148

申请日：2001-03-02

Applicant: ESSILOR INT

Inventor： JEANNIN CHRISTOPHE ,  PADIOU JEAN-MARC ,  BERNARD JOEL

IPC: G02C13/00 ,  B23B5/00 ,  B23C3/16 ,  B23P15/00 ,  B23Q5/027 ,  B24B1/00 ,  B24B13/04 ,  B24B13/06 ,  B24B13/00 ,  B23P23/02

Abstract: L'invention concerne un procédé de fabrication d'une surface d'une lentille ophtalmique. Selon l'invention, il comprend une étape a) d'usinage de la surface par enlèvement de matière en déplaçant un outil de coupe selon une trajectoire continue pour former des sillons, deux sillons adjacents étant espacés d'un pas constant compris entre 0,01 et 3 mm, et une étape b) de lissage de la surface usinée en déplaçant un outil de lissage selon une trajectoire continue formée de courses, deux courses adjacentes étant espacé es d'un pas constant compris entre 0,2 et 3 mm, pour réaliser un filtrage passe - bande des ondulations de cette surface entre une fréquence basse corresponda nt à une enveloppe de surface à atteindre et une fréquence haute correspondant à une rugosité de fond.