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公开(公告)号:US20230196547A1
公开(公告)日:2023-06-22
申请号:US18065675
申请日:2022-12-14
Applicant: Alcon Inc.
Inventor: Daniel Paulus , Jens Hof , Susanne Fechner
CPC classification number: G06T7/0008 , G06T3/0075 , G06T7/33 , G06T7/62 , G02C7/04
Abstract: A method (6) for inspecting an ophthalmic lens (2), in particular a contact lens such as a soft contact lens (2), in an automated lens manufacturing process is disclosed. The method comprises the steps of acquiring (60) a plurality of images containing the ophthalmic lens (2) to be inspected as an imaged ophthalmic lens (2), wherein each image (4) of the plurality of images is of a different image type, registering (63) the plurality of images by applying a registration function to each image (4) of the plurality of images to obtain registered images, determining (64), based on the registered images, whether the ophthalmic lens (2) complies with predetermined specifications, and updating (62) the registration function to compensate for possible changes in the acquisition of the plurality of images. Updating (62) the registration function is performed during the automated lens manufacturing process.
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公开(公告)号:US11499888B2
公开(公告)日:2022-11-15
申请号:US17021305
申请日:2020-09-15
Applicant: ALCON INC.
Inventor: Bernhard Pfaff , Roger Biel , Susanne Fechner , Daniel Kessler
Abstract: A lens inspection module comprises: a lens insertion station, at least one lens inspection station, and a lens removal station as well as a closed-loop transportation rail, a cuvette transportation shuttle with a plurality of inspection cuvettes, and a self-driving cleaning shuttle for cleaning the rail. Cleaning shuttle comprises a driving unit a cleaning head, a suction unit, and a tube connecting cleaning head and suction unit. Cleaning head is spaced apart from suction unit and driving unit in the transportation direction and is pivotally arranged about a pivot axis. Cleaning head may comprise a distance sensor for detecting the distance between cleaning shuttle and transportation shuttle. Driving unit is configured to change the speed of the self-driving cleaning shuttle when the distance between the cleaning shuttle and the transportation shuttle is shorter than a predetermined threshold distance.
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公开(公告)号:US20230304890A1
公开(公告)日:2023-09-28
申请号:US18188529
申请日:2023-03-23
Applicant: Alcon Inc.
Inventor: Niyazi Tekeli , Susanne Fechner
IPC: G01M11/02
CPC classification number: G01M11/0221
Abstract: A method for optically inspecting an ophthalmic lens in an automated lens production process to determine an orientation state and an inversion state of the ophthalmic lens. The method comprises the steps of acquiring an image of the ophthalmic lens, determining from the acquired image an orientation value of the lens, comparing the determined orientation value with an orientation threshold value, and determining that the lens is oriented right side up when the determined orientation value is higher than the orientation threshold value, or determining that the lens is oriented upside down when the determined orientation value is lower than the orientation threshold value, or vice versa.
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公开(公告)号:US20230084287A1
公开(公告)日:2023-03-16
申请号:US17931209
申请日:2022-09-12
Applicant: Alcon Inc.
Inventor: Matthias Schwab , Matthias Braun , Roger Biel , Nils Schweizer , Nicholas Gollas , Susanne Fechner , Shu Zong
Abstract: An automated production line for the production of ophthalmic lenses comprises: a production line front end (1) comprising: a first injection-molding machine (10) and a second injection-molding machine (12) a casting module (14) comprising a filling station (144) and a capping station (145); a stacking module (15) and a curing module (16); a destacking module (17) and a demolding and delensing module a production line back end (2) comprising: an inspection module (21); Wherein the inspection module comprising a rail system in which self-driving shuttles carrying the inspection cuvettes are arranged on a closed-loop rail, wherein the rail system can be adapted to the available space in the production plant/hall using curves and straight portions in the manner known from a model railway.
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公开(公告)号:US20210080347A1
公开(公告)日:2021-03-18
申请号:US17021305
申请日:2020-09-15
Applicant: ALCON INC.
Inventor: Bernhard Pfaff , Roger Biel , Susanne Fechner , Daniel Kessler
IPC: G01M11/02
Abstract: A lens inspection module comprises: a lens insertion station, at least one lens inspection station, and a lens removal station as well as a closed-loop transportation rail, a cuvette transportation shuttle with a plurality of inspection cuvettes, and a self-driving cleaning shuttle for cleaning the rail. Cleaning shuttle comprises a driving unit a cleaning head, a suction unit, and a tube connecting cleaning head and suction unit. Cleaning head is spaced apart from suction unit and driving unit in the transportation direction and is pivotally arranged about a pivot axis. Cleaning head may comprise a distance sensor for detecting the distance between cleaning shuttle and transportation shuttle. Driving unit is configured to change the speed of the self-driving cleaning shuttle when the distance between the cleaning shuttle and the transportation shuttle is shorter than a predetermined threshold distance.
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