Multilayer polarizing fibers and polarizers using same
US7773834B2 · kind B2 · utility
21Cited by
87References
29Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 30, 2006 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Dec 20, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarizing film is made of multilayer polarizing fibers embedded within a matrix. The fibers are formed with layers of at least a first and a second polymer material. Layers of the first polymer material are disposed between layers of the second polymer material. At least one of the first and second polymer materials is birefringent. In some embodiments the thickness of the layers of at least one of the materials varies across the fiber, and may include layers are selected as quarter-wavelength thickness for light having a wavelength of more than 700 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.