Method for checking a geometric characteristic and an optical characteristic of a trimmed ophthalmic lens and associated device
US10416038B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2016 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jul 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/9583
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.