Process for controlling a lens manufacturing process
US8721076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2008 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Oct 9, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/0242
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process for controlling a lens manufacturing process comprising the steps of: a) manufacturing a master lens according to a manufacturing process using a manufacturing device, b) measuring by using at least a measuring device at least one parameter of the master lens of step a), c) recording the value of the parameter, d) repeating regularly step a) to c) and checking the evolution of the parameter over time, wherein the evolution of at least one parameter of the manufacturing device used during the lens manufacturing process is checked over time and the evolution over time of at least one parameter of the master lens is related with the evolution over time of the at least one parameter of the manufacturing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.