Light adjustable lenses capable of post-fabrication power modification via multi-photon processes
US7074840B2 · kind B2 · utility
45Cited by
16References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2004 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Oct 23, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S522/904
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to novel photoinitiators and their use in light adjustable compositions. The initiatives comprise two or more multiphoton chromophores linked by a bridging compound. The bridging compound consists of a material that is compatible with the base material of the light adjustable composition. The novel photoinitiator permit the readjustment of light adjustable material without the need for significant amounts of photoabsorbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.