Optical device having continuous and disperse phases
US6654170B1 · kind B1 · utility
7Cited by
62References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2000 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Jan 7, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved optical film having a continuous/disperse phase morphology and a method for making the same is provided. At least one of the continuous and disperse phases comprises a blend of homopolymers which are inter-reacted, as by transesterification. The resulting films exhibit a higher degree of birefringence for a given level of strain than analogous films in which the blend is replaced by a random copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.