Chitosan optical materials
US6134045A · kind A · utility
20Cited by
10References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1998 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Jul 17, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3523
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Chitosan-based electro-optic elements are disclosed. An optical waveguide is made from films of chitosan-acetic acid, and from films of chitosan-acetic acid doped with various rare-earth metal ions, over a substrate. Optical limiters are made from chitosan gel host materials doped with a variety of photo-interactive or light limiting dopants. Three different suitable example chitosan gel hosts are disclosed. An electrostatically self-assembling multilayer film is made with a chitosan base layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.