Measurement of thickness, surface profile, and optical power of a transparent sheet
US10161879B1 · kind B1 · utility
2Cited by
1References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2017 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jul 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/958
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This present invention relates to an apparatus and method for measuring the profile and reflective optical power of one or more surfaces of transparent sheets and transmissive optical power and thickness of one or more transparent sheets at a plurality of locations over the complete transparent sheet. The measurement results are presented to a user graphically and all data is stored for further processing, process control, and quality assurance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.