Method and system for automatically inspecting ophthalmic lenses
US5748300A · kind A · utility
32Cited by
13References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Sep 12, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/0278
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for automatically inspecting an ophthalmic lens. The method includes the steps of directing a light beam through the lens and onto an array of pixels, and assigning to each pixel a data value representing the intensity of the light beam on the pixel. The data values are then processed according to a predetermined program to determine if the lens contains any one of a group of predetermined conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.