Optical layered product
US8778489B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Mar 31, 2008 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Dec 20, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/25
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical layered product has a translucent substrate having at least an optically functional layer, containing translucent microparticles, provided directly or via another layer onto one or both sides of the substrate. The standard deviation of area dispersion variability of the translucent microparticles in the optically functional layer is in the range of 0.04 to 0.20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.