Sinusoidal polarization
US7894134B1 · kind B1 · utility
1Cited by
8References
14Claims
0Family size
Inventor
Key dates
| Filing date | May 2, 2007 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Aug 8, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/281
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A linearly polarized transparent or translucent material is stretched to follow a sinusoidal shape so all parts of the resulting panes or lenses are themselves sinusoidal. By providing a structure of two panes or lenses of such material, moving one relative to the other in a linear direction varies an amount of light passing through. Thus, such a linear movement adjusts light translucence, luminosity intensity, brightness and dimness. Applications include windows (home, office, car), motor vehicle windshields, sunglasses, optical lenses, computer monitors, televisions, and fluorescent light fixtures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.