公开(公告)号：WO2023011979A1

公开(公告)日：2023-02-09

申请号：PCT/EP2022/070893

申请日：2022-07-26

Applicant: MEI S.R.L.

Inventor： SONZOGNI, Stefano

IPC: B24B13/01 ,  B24B57/02 ,  B24B1/00

Abstract: The invention relates to a polishing tool (100) for polishing a spectacle lens (L) in a surface machining process, which comprises a tool body (110) for being rotatably supported about a rotational axis (RA1). The tool body (110) comprises a polishing surface (130) being outwardly exposed at a first axial end (101) of the tool body (110). Therein, the polishing surface (130) is axially bulged convexly or concavely with respect to the rotational axis (RA1) for polishing an optical surface (L1, L2) of the spectacle lens (L). The tool body (110) further comprises a channel (140) that extends axially through the tool body (110) from an inlet (142) to an outlet (141) to supply the polishing surface (130) with a polishing agent. The inlet (142) is provided at a second axial end (102) being opposite to the first axial end (101) with respect to the rotational axis (RA1). The outlet (141) is provided at the first axial end (101). The polishing surface (130) comprises at least one groove (150) that extends radially away from the outlet (141) to the perimeter of the polishing surface (130) to distribute the polishing agent across the polishing surface (130). The invention also relates to a system (200) and a method for polishing a spectacle lens (L) in a surface machining process with said polishing tool (100).

公开(公告)号：WO2015059007A1

公开(公告)日：2015-04-30

申请号：PCT/EP2014/072075

申请日：2014-10-15

Applicant: MEI S.R.L.

Inventor： SONZOGNI, Stefano

IPC: B29D11/00 ,  B24B9/20 ,  B24B13/005

CPC classification number: B24B13/005 ,  B24B9/146 ,  B29D11/00932

Abstract: The present invention refers to a process for machining a lens, comprising the steps of holding a semi-finished product (20) through a suction holding force which is active during an entire surface machining cycle of the semi-finished product (20); carrying out the surface machining cycle on a surface (20b) to be machined of the semi-finished product (20); and activating a pressure holding force depending on the level of the mechanical stresses exerted on the semi-finished product (20) during the surface machining cycle on said surface (20b).

Abstract translation: 本发明涉及一种用于加工透镜的方法，包括以下步骤：通过在半成品（20）的整个表面加工循环期间有效的吸力保持力来保持半成品（20）; 在要加工的半成品（20）的表面（20b）上进行表面加工循环; 以及根据在所述表面（20b）上的表面加工循环期间施加在所述半成品（20）上的机械应力的水平来激活压力保持力。

公开(公告)号：WO2020144268A1

公开(公告)日：2020-07-16

申请号：PCT/EP2020/050412

申请日：2020-01-09

Applicant: MEI S.R.L.

Inventor： SONZOGNI, Stefano

IPC: G01B5/18 ,  B24B9/14 ,  G02C1/00

Abstract: The present invention relates to a lens edge simulation tool (10) for measuring the fitment of a lens edge profile (LEP) with respect to a frame groove profile (FGP) of a spectacle frame (20), the lens edge simulation tool (10) having a defined edge profile (STP) like a lens edge profile (LEP) of a lens (6) being machined by a defined edger machine (4), the defined edge profile (STP) comprising a bevel portion (11) protruding towards a protrusion direction (A), wherein the lens edge simulation tool (10) further comprises a probe (15) provided at a distal end tip portion (14) of the bevel portion (11) and being moveable (M) along the protrusion direction (A) between a retracted position in which the probe (15) does not protrude from the defined edge profile (STP) and an extension position in which the probe (15) protrudes from the distal end tip portion (14). The present invention further relates to a system (1) and method for defining a lens shape for a machined lens (6) adapted to fit into a frame groove (21) of a spectacle frame (20).

公开(公告)号：WO2020058022A1

公开(公告)日：2020-03-26

申请号：PCT/EP2019/073958

申请日：2019-09-09

Applicant: MEI S.R.L.

Inventor： SONZOGNI, Stefano ,  DOLCI, Angelo

IPC: G01M11/02 ,  G01N21/21 ,  G02B5/30 ,  G02B27/28 ,  G01J4/00

Abstract: The present invention is directed to a polarizing filter (20), comprising a plurality of areas (25) for passing light, each area (25) being separated from the others, wherein each of the areas (25) is a linear polarizer and at least two of the areas (25) have a different polarization axis. The present invention is further directed to an apparatus (1) for determining an orientation of a lens polarization axis of a polarized lens (31) and using said polarizing filter (20) as well as a method of determining an orientation of a lens polarization axis of a polarized lens (31) using said apparatus (1).

公开(公告)号：WO2010064083A1

公开(公告)日：2010-06-10

申请号：PCT/IB2008/053072

申请日：2008-07-31

Applicant: MEI S.r.l. ,  SONZOGNI, Stefano

Inventor： SONZOGNI, Stefano

IPC: B29C51/28 ,  B29D12/02 ,  B29C43/36 ,  B29C43/12

CPC classification number: B29C43/3642 ,  B29C51/28 ,  B29C53/04 ,  B29C2043/3647 ,  B29C2043/3649 ,  B29D12/00 ,  B29L2009/00 ,  B29L2012/005 ,  B30B5/02 ,  C03B23/0235 ,  C03B23/0355 ,  Y10T156/1002

Abstract: The invention is a new procedure for making glass frames obtained from boards (T) made of a plastic or composite material, comprising one step for deforming a pre-heated single- layer or multilayer board (T) on one or two curvature planes (X, Y) transverse to each other, and wherein said deformation step is carried out before the board (T) is milled to create the shape of the glass frame. The equipment suited to implement the procedure that is the subject of the invention comprises a half-mould (S) and an element (B) for closing the upper opening of the half-mould (S), with deformable membrane (M), and wherein the injection of air (W) in said air space (C) causes the expansion of said deformable membrane (M) that compresses a board (T) against said half-mould (S), thus deforming it in a corresponding way.

Abstract translation: 本发明是用于制造由塑料或复合材料制成的板（T）获得的玻璃框架的新方法，包括一个步骤，用于使预热的单层或多层板（T）在一个或两个曲率平面（X ，Y）彼此横向，并且其中所述变形步骤在板（T）被铣削之前进行以产生玻璃框架的形状。 适用于实施本发明主题的方法的设备包括半模（S）和用于封闭半模（S）的上开口的可变形膜（M）的元件（B），以及 其中在所述空气空间（C）中注入空气（W）使所述可变形膜（M）膨胀，所述可变形膜（M）将板（T）压靠在所述半模（S）上，从而以相应的方式变形。