Devices that include a dichroic material (4) sandwiched between first (3) and second (5) electrodes layers and exhibiting a high optical absorption when the first (3) and second (5) electrode layers are biased at a first electrical bias state and a low optical absorption when the first and second electrode layers are biased at a second, different electrical bias state Such devices may be used to construct optically reflective devices such as anti- glare mirrors and optically transmissive devices such as eye glasses The dichroic material (4) may be selected to be operable to switch between the high optical absorption and the low optical absorption in less than 0.1 second.
ANTI-GLARE REFLECTIVE AND TRANSMISSIVE DEVICES