System and method for optical reading of markings printed on a face of an ophthalmic lens
US9574872B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 2012 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Jan 29, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/0278
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for the optical reading of markings printed on an ophthalmic lens (2), includes an image capture device (26), a light source (15) and a support (18, 31) which are configured so that, when the lens is received by the support with a masking element (39) which covers the markings, the source illuminates the lens while rendering the markings visible to the device; and a mobile element on which the source is fixed and which admits a retracted position where it is distanced from the support and a working position where it surrounds at least partially the support and the source looks at the support and these latter are configured so that the source illuminates a rim (34) of the lens so that the light penetrates into its mass (35) and reaches the masking element (33) through the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.