| abstract |
In the prior art, differently configured devices are known by utilizing the electro-optical Kerr effect, in particular for modulating the light. For a wide industrial application, the very strong temperature dependence of the effect in connection with high operating voltages is disadvantageous. In order to design or manufacture an electrically controllable optical element in such a way that, based on the electro-optical Kerr effect, a low threshold and operating voltage, a minimized temperature dependence of the effect and a low response time have been reached - starting from an electrically controllable optical element, according to FIG According to the preamble of claim 1 - according to the invention, the Kerrflüssigkeit (K) a mixture of rod-shaped (5) and non-rod-shaped (4) molecules as active components and the Kerrflüssigkeit (K) forms a thin layer with a vorprägbaren, weitmaschigen, anisotropic network (9 ) between structured and / or planar conductive layer (2) applied to a substrate (1) in a thin-layer cell (D) in such a way that, according to the electro-optical Kerr effect, the state of the active composite (4, 5) of the Kerr liquid ( K) without electric field in the working temperature range isot rop is generated and by electrically continuous adjustment of the voltage U or by applying a constant voltage, a change in the voltage-induced phase or Brechungsindexhubes in the optical element. The invention is in the field of electrically controllable optical elements. |