Reflective polarizers containing polymer fibers
US7526164B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2008 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Mar 18, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3008
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.