doi:10.1117/3.2615406.ch5

Surface Imperfection Tolerances

Book: Modern Optics Drawings: The ISO 10110 Companion

Author(s): Eric Herman, David M. Aikens, Richard N. Youngworth

Published: 2021

https://doi.org/10.1117/3.2615406.ch5

Author Affiliations +

Abstract

Surface imperfections are localized flaws, such as scratches and digs, on the surface of an optical element. Surface imperfections that are not localized— i.e., cover the entire surface—are considered texture and are toleranced using the notation given in Chapter 4. Typically, when considering surface imperfections we include other features such as edge chips and coating imperfections. The ISO 10110 standard includes two methods of indicating surface imperfections. The first method is analogous to the scratch and dig visibility standard found in US MIL-PRF-13830B and the related visibility method described in ANSI/OEOSC OP1.002. The second method is analogous to the withdrawn DIN 3140’s dimensional specification.