随着科学技术的不断发展,书刊、资料的出版数量与日俱增,这对收藏及使用文献资料的情报部门和图书馆来说,就产生了一个存贮空间严重短缺的问题,而解决这一问题的最佳方法就是对文献资料进行缩微。缩微文献的使用已有悠久的历史,早在1839年,英国科学家J·B丹泽就用照相机将20英寸的文献资料拍摄在1/8英寸的胶卷上,再用100倍的显微镜阅读。但是缩微文 With the continuous development of science and technology, the number of books and periodicals and materials published is on the rise. This has created a serious shortage of storage space for intelligence agencies and libraries that collect and use documents, and the solution to this problem The best way is to microfilm the literature. The use of microfilm has a long history. As early as 1839, British scientist DB Danzer photographed a 20-inch document on a 1/8-inch film with a camera and read it with a 100x microscope. But the microform