Invention Grant
- Patent Title: Method for checking a geometric characteristic and an optical characteristic of a trimmed ophthalmic lens and associated device
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Application No.: US15743537Application Date: 2016-07-28
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Publication No.: US10416038B2Publication Date: 2019-09-17
- Inventor: Cedric Lemaire , Xavier Lippens
- Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
- Applicant Address: FR Charenton-le-Pont
- Assignee: ESSILOR INTERNATIONAL
- Current Assignee: ESSILOR INTERNATIONAL
- Current Assignee Address: FR Charenton-le-Pont
- Agency: Young & Thompson
- Priority: FR1557327 20150730
- International Application: PCT/FR2016/051968 WO 20160728
- International Announcement: WO2017/017385 WO 20170202
- Main IPC: G01M11/02
- IPC: G01M11/02 ; G01B11/24 ; G01N21/958 ; G02C13/00

Abstract:
Disclosed is a method for checking at least one geometric characteristic and one optical characteristic of a trimmed ophthalmic lens (10) including the following steps: a) arranging the trimmed ophthalmic lens on a support (110), b) capturing at least one image of the trimmed ophthalmic lens, c) determining, from the image, a measured geometric characteristic of the trimmed ophthalmic lens, d) determining at least one measured optical characteristic of the trimmed ophthalmic lens in a reference frame of the image captured in step b), e) comparing the measured geometric characteristic associated with the measured optical characteristic to a predefined desired ophthalmic lens model, including at least one desired geometric characteristic and one associated desired optical characteristic. Also disclosed is an associated checking device.
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