Curved optical device and method having a pair of opposed thermoplastic substrates with spacers therebetween to permanently retain a curved shape
US7705959B2 · kind B2 · utility
4Cited by
21References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2006 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Aug 24, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13392
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A curved optical device includes a pair of initially flat opposed flexible substrates that may have a fluid material with spacers disbursed therein disposed between the pair of substrates and sealed. The substrates have a uniform controlled distance therebetween. The substrates are permanently curved by applying heat and pressure with a mold while maintaining the controlled distance therebetween. The fluid material maybe a liquid crystal to provide the optical device with enhanced optical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.