Patent ID: 8736938
Filing Date: 2014-05-27
Classification: E04C,E06B,G02B

Abstract:
1. An insulated glazing unit having controllable radiation transmittance, said insulated glazing unit comprising: a spacer defining a framed area capable of allowing radiation transmission therethrough; a first glazing pane attached to said spacer; a second glazing pane attached to said spacer, said glazing panes arranged such that an inner surface of said first glazing pane and an inner surface of said second glazing pane face each other and are spaced apart from each other; a pane conductive layer disposed on said inner surface of said first glazing pane; a dielectric layer disposed on said pane conductive layer; a shade affixed to said first glazing pane, said shade including a resilient layer and a substantially transparent shade conductive layer, wherein said shade is adapted to extend along a length of the framed area from a retracted configuration having a first surface area substantially permitting radiation transmission through said framed area to an extended configuration having a second surface area substantially controlling radiation transmission through said framed area; whereby, when an electric drive of voltage or current is applied between said pane conductive layer and said substantially transparent shade conductive layer a potential difference between said pane conductive layer and said substantially transparent shade conductive layer causes said shade to extend from said retracted configuration to said extended configuration.