Patent · US Active

Polarizing plate with melanin

US7703916B2 · kind B2 · utility

1Cited by

37References

17Claims

0Family size

Inventors

Hideyo Sugimura · North Oaks, US
Xuzhi Qin · La Puente, US
Michael S. Boulineau · Forest Lake, US

Key dates

Filing date	Feb 26, 2008
Grant date	Apr 27, 2010
Priority date	—
Expiry date	Feb 26, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31504
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present invention is directed to the incorporation of melanin in an optical article with polarization properties. Such an article includes a first polymer layer containing a polarizing agent, a second polymer layer containing melanin and wherein the second polymer layer is disposed upon the first polymer layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.