公开(公告)号：US12083728B2

公开(公告)日：2024-09-10

申请号：US17652729

申请日：2022-02-28

Applicant: ALCON INC.

Inventor： Jan Bernard ,  Michael Stutz ,  Thomas Tonn

IPC: B29C45/84 ,  B29C45/14 ,  B29C45/26 ,  B29C45/80 ,  B29D11/00 ,  B29L11/00 ,  G02B21/00

CPC classification number: B29C45/842 ,  B29C45/14 ,  B29C45/2675 ,  B29C45/80 ,  B29D11/00951 ,  G02B21/0016 ,  B29C2945/76096 ,  B29C2945/76294 ,  B29C2945/76461 ,  B29C2945/76943 ,  B29D11/0048 ,  B29L2011/0041

Abstract: To achieve molding insert is properly mounted to the tooling plate of the injection molding machine, a sensor head comprising confocal sensors is used. The sensor heads are placed on the tooling plate at the respective position to determine whether the desired mold insert has been mounted to that position and whether the desired mold insert has been precisely and accurately mounted to the tooling plate.

公开(公告)号：US20220152958A1

公开(公告)日：2022-05-19

申请号：US17455139

申请日：2021-11-16

Applicant: ALCON INC.

Inventor： Michael Stutz ,  Jan Bernard ,  Giovanni Campanelli ,  Lukas Lomb ,  Matthias Schwab

IPC: B29D11/00

Abstract: A mold unit (22) for molding ophthalmic lenses comprises: an adapter piece (220) comprising an opening (2200) extending around a longitudinal axis (2201); a sleeve (221) fixedly connected to the adapter piece (220) and extending through the opening (2200) of the adapter piece (220); a lens mold (222) rigidly mounted to the sleeve (221); an adjustment ring (224) firmly attached to the sleeve (221) to circumferentially surround a portion of the sleeve (221). The adjustment ring (224) comprises a flat circular outer engagement surface (2244), and the adapter piece (220) comprises at least one clamping block (2211) having a flat inner clamping surface (2214). The flat inner clamping surface (2214) frictionally clamps the flat circular outer engagement surface (2244) to prevent inadvertent rotation of the sleeve (221) relative to the adapter piece (220) but to allow rotation of the sleeve (221) relative to the adapter piece (220) upon the application of a torque higher than a predetermined threshold torque.

公开(公告)号：US20220274307A1

公开(公告)日：2022-09-01

申请号：US17652729

申请日：2022-02-28

Applicant: ALCON INC.

Inventor： Jan Bernard ,  Michael Stutz ,  Thomas Tonn

IPC: B29C45/84 ,  B29C45/14 ,  B29C45/80

Abstract: A method for verifying whether a molding insert (1a, 1b) is accurately mounted to a tooling plate (2a, 2b) comprises the steps of: a) providing a confocal sensor (3a, 3b); b) arranging the confocal sensor (3a, 3b) such that a confocal sensor reference plane (32a, 32b) as well as a tooling plate reference plane (22a, 22b) are normal to a mounting axis (21a, 21b) of the tooling plate and spaced from each other by a predetermined first distance (d1, e1); c) measuring a second distance (d2, e2) between the confocal sensor reference plane (32a, 32b) and a central impingement location (11a, 11b) on a molding surface (12a, 12b) of the molding insert (1a, 1b); d) based on the measured second distance (d2, e2) as well as based on the predetermined first distance (d1, e1), determining a third distance (d3, e3) of the central impingement location (11a, 11b) relative to the tooling plate reference plane (22a, 22b); e) comparing the third distance (d3, e3) with a predetermined target distance, and f) determining that the molding insert (1a, 1b) is accurately mounted to the tooling plate (2a, 2b) if the difference between the third distance (d3, e3) and the predetermined target distance is less than a threshold difference.

公开(公告)号：US20210371150A1

公开(公告)日：2021-12-02

申请号：US17332051

申请日：2021-05-27

Applicant: ALCON INC.

Inventor： Thomas Leibold ,  Jennifer Schmitt ,  Katrin Sylke Struckmeier ,  Michael Stutz

IPC: B65D1/36 ,  B65D21/02 ,  B29D11/00

Abstract: A carrier for carrying an ophthalmic lens during its treatment in a bath comprises: a basket (10) comprising a basket wall defining a concave cavity (50) for accommodating an ophthalmic lens, the basket (10) further comprising a plurality of recesses (17) arranged in the basket wall at different angular locations along the circumference of the basket (10), each recess (17) being arranged to extend downwardly from an upper rim (15) of the basket wall;
and a retainer (20) comprising a plurality of retainer arms (21), the retainer arms (21) being arranged in a star-shaped configuration at angular locations corresponding to the angular locations of the recesses (17), to in an assembled state of two such carriers (1) extends into a corresponding one of the plurality of recesses (17) in the basket wall to retain the ophthalmic lens in the carrier.