Liquid Crystal Light Valve Color Projection System
The trend of research and development of liquid crystal light valve color projection system is presented, firstly. Then, the two types of projection systems developed in our laboratory are given. One of the systems is based on a high-brightness, highresolution, electrically addressed, reflectively reading CR.T-LCLV spatial light modulators (SLMs). The other employs three transmitting-readout si-TFTLCLVs. The design features of the two types of the projection systems are demonstrated and the performance of the systems are given. applications. A variety of liquid crystal color projection systems [11--[51 have been produced. In this paper, we demonstrate the main design features of the two 111 color projection systems developed in our laboratory. Firstly, the color projection system is based on three electrically addressed, reflectively readout cathode-ray tube-liquid crystal light valve(CRT-LCLV) made in our laboratory. Secondly, the color projection system employs a long lifetime xenon arc lamp to photoactivate three highbrightness, high-resolution, transmissively readout liquid crystal light valves(LCLVs). The main design features and the performance characteristics are presented.
New LCLV For Real-time Display Of Enlarged Electronic Images
Abs,tract - In recent years, a new CdS(Se)/CdTe solid state liquid crystal light valve(LCLV) coupled with a cathode ray tube(CRT) has been developed and its sample production has been started in our Optical Information Processing Lab. Coninected to a computer or a video camera, the CRT coupled LCLV spatial light modulator (CRT-LCLV SLM) can project a full-color image on screen up to 1 to 3 meter (in diagonal dimension). Display size and resolution can be varied electronically over a wide range. The device can also serve as an optical switch for high-bandwidth parallel processing optical computers. We have measured the imaging characteristics of the device and examined its availability as an electro-optical converter for an enlarged electronic image. The general configuration and main specifications, as well as the results of a series of experiments for the device, are given.
Selective and sensitive TNT sensors using biomimetic polydiacetylene-coated CNT-FETs.
Miniaturized smart sensors that can perform sensitive and selective real-time monitoring of target analytes are tremendously valuable for various sensing applications. We developed selective nanocoatings by combining trinitrotoluene (TNT) receptors bound to conjugated polydiacetylene (PDA) polymers with single-walled carbon nanotube field-effect transistors (SWNT-FET). Selective binding events between the TNT molecules and phage display derived TNT receptors were effectively transduced to sensitive SWNT-FET conductance sensors through the PDA coating layers. The resulting sensors exhibited an unprecedented 1 fM sensitivity toward TNT in real time, with excellent selectivity over various similar aromatic compounds. Our biomimetic receptor coating approach may be useful for the development of sensitive and selective micro- and nanoelectronic sensor devices for various other target analytes.