Light blocking apparatus for vehicle mirror assembly
US8432600B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2009 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | May 10, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133553
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A mirror assembly is provided having a mirror for use in connection with a vehicle, such as a military combat vehicle. An electrically activatable material is positioned at the mirror of the vehicle. The electrically activatable material prevents the reflectivity of visible light off the mirror when the electrically activatable material is switched to a light-blocking state. A coupling device electrically couples the electrically activatable material to an electrical power source. An actuation device is adapted to switch the electrically activatable material of the vehicle mirror assembly to the light-blocking state in response to user operation such that the electrically activatable material prevents the reflectivity of visible light off the vehicle mirror to reduce the observability of the vehicle mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.