Semi-Automatic Modulation Transfer Function (MTF) Tolerancing

Robert S. Hilbert

doi:10.1117/12.957869

29 November 1979 Semi-Automatic Modulation Transfer Function (MTF) Tolerancing

Robert S. Hilbert

Author Affiliations +

Proceedings Volume 0193, Optical Systems in Engineering I; (1979) https://doi.org/10.1117/12.957869
Event: 23rd Annual Technical Symposium, 1979, San Diego, United States

Abstract

MTF tolerancing has not been a practical tool in the past, due to prohibitively expensive computer costs, in combination with lens designer calculations that are both extensive and dull. The design and use of a new computer program is described to demonstrate that the majority of the drudgery and computation costs are no longer necessary. Given the nominal design and the spatial frequency of interest, the program automatically generates a default set of tolerances, using defined boundaries and compensators, and predicts fabricated MTF performance. The user can override any of the assumptions to easily tailor the MTF drop, constraints, and compensators to those most appropriate to the specific manufacturing process and end use intended. RMS wavefront error can be used instead of MTF if appropriate. Examples are provided including computer-generated tables that can be directly used by an optomechanical designer.

Citation Download Citation

Robert S. Hilbert "Semi-Automatic Modulation Transfer Function (MTF) Tolerancing", Proc. SPIE 0193, Optical Systems in Engineering I, (29 November 1979); https://doi.org/10.1117/12.957869

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