Angle switchable crystalline colloidal array films
US8252412B2 · kind B2 · utility
5Cited by
18References
23Claims
0Family size
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Key dates
| Filing date | Jun 16, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Oct 20, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/254
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A radiation diffractive film is disclosed, which includes a viewing surface, with at least a portion of the viewing surface residing in a viewing plane. The film comprises an ordered periodic array of particles received in a matrix material, the array of particles having a crystalline structure, wherein the crystalline structure defines (i) a plurality of first crystal planes of the particles that diffract infrared radiation and (ii) a plurality of second crystal planes of the particles that diffract visible radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.