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利用二元光学技术制成二元光学元件，它可以制作有特殊功能高衍射效率的光学元件。本文介绍了这种技术的基本原理、制作工艺和流程以及近年来研究的几种有应用前景的二元光学元件。
The use of binary optical technology to make binary optical components, it can produce a special function with high diffraction efficiency of optical components. This article describes the basic principles of this technology, production processes and processes and several promising binary optical components studied in recent years.