Operation of an electromagnetic radiation focusing element
US8749785B2 · kind B2 · utility
7Cited by
1References
39Claims
0Family size
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Key dates
| Filing date | Dec 26, 2012 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Dec 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A combination of a focusing element, and a filtering element which naturally adjusts the cross-sectional area of a beam of electromagnetic radiation passed through the focusing element as a function of wavelength, optionally as an element of an ellipsometer or polarimeter system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.