日本电报电话公司光电子学研究所研制成高灵敏度、高速响应的空间光调制器,用它实时记录、再现菲涅耳全息照相获得成功。实时全息照相对动画像灵活光学处理系统的实现至关重要,然而迄今光致变色材料或光刻材料之类的可重写全息材料,尚无足够响应速度和灵敏度,致使实时全息照相无法实现。空间光调制器作为实现实时全息照相的有力候补手段,可望得到高晰像清晰度。研制的空间光调制器采用夹层结构,即在涂敷透明电极的玻璃基片之间夹有非晶Si:H Nippon Telegraph and Telephone Company Institute of Optoelectronics developed into a high sensitivity, high-speed response to the spatial light modulator, using it to record real-time, Fresnel hologram reproduction success. Real-time holography is crucial for the realization of animated, flexible optical processing systems. However, to date, rewritable holographic materials such as photochromic materials or lithographic materials have not been sufficiently responsive and sensitive to enable real-time holography. Spatial light modulator as a real candidate for real-time holographic alternative means, is expected to get high definition sharpness. The developed spatial light modulator uses a sandwich structure in which amorphous Si: H is sandwiched between glass substrates coated with a transparent electrode