本文件定义了激光技术领域的基本术语、符号和测量单位，以统一术语，并对光束参数和面向激光的产品特性进行明确定义和可重复测试。 注:本文件中规定的激光等级词汇与IEC 60825中给出的不同？1.ISO和IEC讨论了这一差异，并同意这反映了两个标准的不同目的。有关更多详细信息，请参见资料性附录A。

This document defines basic terms, symbols, and units of measurement for the field of laser technology in order to unify the terminology and to arrive at clear definitions and reproducible tests of beam parameters and laser-oriented product properties. NOTE The laser hierarchical vocabulary laid down in this document differs from that given in IEC 60825?1. ISO and IEC have discussed this difference and agree that it reflects the different purposes for which the two standards serve. For more details, see informative Annex A.