Consolidated multilayered gradient refractive index optical materials
US8902508B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2013 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Jun 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A consolidated multilayered GRIN optical material includes a multilayered composite GRIN sheet that includes a plurality of consolidated coextruded multilayered polymer films. Each of the multilayered polymer films includes a plurality of at least two alternating layers (A) and (B). Layer (A) includes a first blend of polymer components and layer (B) includes a second blend of polymer components. The multilayered composite GRIN sheet has an external optical transmission of at least 80% at a wavelength of 633 nm measured using UV-VIS spectroscopy and is free of intralayer polymer domains at least 1 micron size scale in any dimension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.