Systems and methods for inspection of ophthalmic lenses
US7256881B2 · kind B2 · utility
11Cited by
19References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2003 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | May 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/0278
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automated lens inspection system that images the edge and surface of an ophthalmic lens transmits light through the ophthalmic lens to a camera to create a complete digital image of the lens edge or lens surface. The digitized image(s) is(are) analyzed to detect defects or abnormalities of the ophthalmic lens. Methods of inspecting ophthalmic lenses are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.