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一、引言汉字发生器是汉字信息处理系统中必不可少的一个重要装置。它用来贮存需要处理的汉字和符号。实现汉字发生器的方案很多,如磁性存贮器,半导体存贮器等。但它们都存在着一些困难和问题,如成本高、速度慢、可靠性低等。六十年代末,激光全息技术的出现,为精密型汉字发生器开辟了一条新途径。由于激光全息技术具有信息存贮密度大、可靠性高的优点,用它作汉字发生器是很适宜的。
I. Introduction The Chinese character generator is an essential device in the Chinese information processing system. It is used to store Chinese characters and symbols to be processed. There are many schemes to realize Chinese character generator, such as magnetic memory, semiconductor memory and so on. However, they all present some difficulties and problems, such as high cost, slow speed and low reliability. The emergence of laser holography in the late 1960s opened up a new avenue for precision Chinese character generators. Because laser holographic technology has the advantages of large information storage density and high reliability, it is very suitable to use it as a Chinese character generator.