Open AccessEffects on the OTF of MSF structures with random variations
Author(s) -
Kevin Liang,
Miguel A. Alonso
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.034665
Subject(s) - optics , optical transfer function , diamond turning , spatial frequency , transfer function , diamond , function (biology) , metrology , materials science , computer science , physics , engineering , electrical engineering , evolutionary biology , composite material , biology
In diamond-machined freeform manufacturing processes, a tool-tip often leaves behind characteristic mid-spatial frequency (MSF) structures on the optical surface. Unwanted movement between the tool-tip and the part results in MSF structures with random variations. Here, we analyze the effects of these MSF structures on the system's optical performance and derive simple analytic estimates for the optical transfer function in terms of the parameters of these structures. These expressions are expected to aid in MSF tolerancing.