Optical film and method of adjusting wavelength dispersion characteristics of the same
US8767297B2 · kind B2 · utility
2Cited by
9References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2008 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Aug 13, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical film includes at the least one retardation film and at least one isotropic layer made of an isotropic material, wherein the difference in average refractive index between the retardation film and the isotropic layer is at least 0.1 or more. Also, the method of adjusting wavelength dispersion characteristics of an optical film includes: stacking an isotropic layer onto a retardation film. A method for preparing optical film having a variety of wavelength dispersion characteristics by the simple method of coating the retardation film with the isotropic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.