Device and method for a folded transmissive phase retarder
US6396630B1 · kind B1 · utility
10Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2001 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Mar 16, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A compact transmissive phase retarder for large and high power laser beam applications is proposed. The laser beam is orthogonally incident on the flat input surface of the optical element and is emergent from the optical component via a second flat output surface. The cross-section of the optical element is characterized by a triangularly or trapezoidally folded surface. The folded surface replaces the inclined surface of bulk equivalent elements. The functionality of the device is provided by a multi-layer interferometric structure deposited on the folded structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.