Coherent and non-coherent interferometry with cold mirror for contact lens thickness measurement
US8797543B2 · kind B2 · utility
0Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2009 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Oct 19, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/0099
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to an apparatus for measuring a sample contact lens. In particular, the present invention has a housing to hold a sample contact lens to be measured, one or more movement stages connected to the housing, and an interferometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.