Graded-refractive-index optical plastic material and method for its production
US5783636A · kind A · utility
26Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1995 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Dec 15, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02033
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A graded-refractive-index optical plastic material composed of an amorphous fluoropolymer and at least one material which differs from the polymer in refractive index by at least 0.001, wherein the material is so distributed as to have a concentration gradient in a specific direction, and a method for its production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.