Patent · US Active

Visible light absorbers for ophthalmic lens materials

US8329775B2 · kind B2 · utility

13Cited by
23References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 18, 2011
Grant dateDec 11, 2012
Priority date—
Expiry dateJul 2, 2031

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02C7/108
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Azo compounds that block visible light are disclosed. These light absorbers are particularly suitable for use in intraocular lens materials.

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