Diamond-turned difiractive optical elements for the infrared Suggestion for specification standardization and manufacturing remarks

摘要

The phase profile of the grating superimposed onto the base surface of an IR lens is relatively coarse. This makes it economically advantageous to apply the single point diamond-turning process to the direct generation of such phase profiles.nDifferent ways have been used to describe the profile of a DOE, which have in some case led to costly misunderstandings. To provide some clarification and suggest a form of standardization for the specification call-out in manufacturing documents is the primary purpose of this paper.