Light control sheets
US5108857A · kind A · utility
64Cited by
7References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 5, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Apr 5, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/919
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light control sheet capable of scattering an incident light of particular incident angle is produced by a method composed of preparing a film of a composition containing at least two photopolymerizable components having different refractive indexes, irradiating on the film a light from a particular direction, and obtaining a cured film of the light control sheet product. Such other light control sheets as capable of scattering a plurality of incident lights each of particular incident angle are obtained by modification of the above-mentioned method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.