Providing a pattern of polarization
US7697117B2 · kind B2 · utility
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20References
22Claims
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Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Dec 20, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/286
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarization pattern assembly produces a polarization pattern. In an embodiment, a polarization pattern assembly includes a frame that supports a polarization pane in a central region of the frame. The polarization pane changes the polarization direction of light incident upon the polarization pane. Different polarization patterns in a pupil of a polarized illuminator can be generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.