Abstract: An assembly having a liquid crystal molecule section, a reflector section, disposed on the liquid crystal molecule section, having a stack of dielectric layers having alternating higher and lower indices of refraction; and an array of electrode sections disposed between a pair of the dielectric layers, one of said pair of dielectric layers having a higher index than the other one of said pair of dielectric layers. The electrodes in the array are interdigitated electrode for producing electric fields parallel to the array. The reflector section is disposed between the liquid crystal molecule section and a thermally conductive substrate.

Abstract: A transmissive liquid crystal (LC) control structure comprising: a superstrate (44) having a first surface (44a) having a GaN HEMT structure disposed thereon to provide a conductor on the first surface of said superstrate; a substrate (42) having a first surface disposed over and spaced apart from the first surface of said superstrate and having a GaN HEMT structure (43) disposed thereon to provide a conductor on the first surface of said substrate and wherein the GaN HEMT structure on one of the superstrate and substrate surfaces are patterned into individual electrodes; a polymer network liquid crystal (PNLC) (48) disposed in the space between the first surface of said superstrate and the first surface of said substrate; and a control circuit coupled to the individual electrodes.

Abstract: A polyurethane disc having a reservoir and spokes cut therein is used in conjunction with potassium triiodide and ethylene glycol to polish mercury cadmium tellurium and cadmium tellurium electro-optical crystals. This process has been found to eliminate the need for lapping damage removal etch. The polyurethane disc is used with a lapping machine and run at low speed.