Patent ID: 7894117
Filing Date: 2011-02-22
Classification: B60R,G02F

Abstract:
1. A transparent window switchable rear vision mirror adapted to be secured to a motor vehicle said switchable window/mirror including: a film being a light modulating unit of suspended particle device light valve, said film comprising a matrix polymer material having droplets of a liquid light valve suspension comprising a plurality of particles dispersed in a liquid suspending medium distributed within a matrix, said film characterized in that presence of lack thereof of an electric field results in the particles being aligned such that a beam of light may be reflected, transmitted or absorbed via said film; a switchable mirror device comprising a substrate and a mono layer film capable of undergoing a reversible change in light transmission or reflectance, said substrate including a film comprising a transmission metal composition; a power supply device to provide an electrical charge to said film for use as a light modulating unit of the suspended particle device and the substrate and the mono layer film, such that the application of the electric field provides for light absorbing or light reflecting functionality of a darkened characterization, and a mirror state which reflects light; wherein the application of an electrical charge to the transparent window switchable rear vision mirror activates both said film of the light modulating the suspended particle device light valve unit and said switchable mirror device, wherein activation of said film can reflect, transmit or absorb a beam of light and said switchable mirror device can transmit or reflect light, such that the transparent window switchable rear vision mirror can assume a transparent state or a said mirror state.