Method and system for determining information about a transparent optical element comprising a lens portion and a plane parallel portion
US9658129B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2015 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Aug 13, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/0048
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining information about a transparent optical element including a lens portion and a plane parallel portion, the lens portion having at least one curved surface and the plane parallel portion having opposing first and second surfaces, includes: directing measurement light to the transparent optical element; detecting measurement light reflected from at least one location on the first surface of the plane parallel portion; detecting measurement light reflected from the second surface of the plane parallel portion at a location corresponding to the at least one location on the first surface; determining, based on the detected light, information about the plane parallel portion; and evaluating the transparent optical element based on the information about the plane parallel portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.