US Patent:
20110273659, Nov 10, 2011
Inventors:
Justin E. Sobecki - Rockford MI, US
Assignee:
MAGNA MIRRORS OF AMERICA, INC. - Holland MI
International Classification:
B60R 1/08
G02F 1/1335
Abstract:
A variable reflectance vehicular mirror reflective element assembly includes a front substrate, an intermediate substrate and a rear substrate, with a first liquid crystal polarization unit disposed between the rear surface of the front substrate and the front surface of the intermediate substrate and a second liquid crystal polarization unit disposed between the rear surface of the intermediate substrate and the front surface of the rear substrate. When the liquid crystal polarization units are unpowered, the reflective element assembly substantially specularly reflects light incident thereon so as to appear specularly mirror-like to a driver of the vehicle viewing the front surface of the front substrate. When the liquid crystal polarization units are electrically powered, they change from being highly specularly reflective to substantially transmitting visible light therethrough. When powered, the liquid crystal polarization units cooperate or combine to provide an anti-glare, low reflecting mirror for viewing by the vehicle driver.