Comparison and suggestion for the implementation of the old and new optical drawings national standard

The national standard of optical drawings is the basis of optical technical professionals to correctly understand the optical drawings.The original national standards vary greatly with the international standards.With the increasing international exchanges,it is necessary for the national standard to comform to the international standard.The necessity and significance of the revised national standards are analyzed and elaborated in the first place,the differences between the previous version and the recension are introduced in accordance with relevant international standards,and every mark in the drawing revised is analyzed in detail.In the end,for the smooth implementation of the revised optical drawing standard,some notable items in this process are indicated and some suggestion for the implementation are proposed.