Standard for surface damage

Lionel R. Baker

doi:10.1117/12.58842

1 August 1992 Standard for surface damage

Lionel R. Baker

Author Affiliations +

Optical Engineering, Vol. 31, Issue 8, (August 1992). https://doi.org/10.1117/12.58842

Abstract

A parametric method for the objective measurement of surface damage such as digs and scratches on optical components is described and is intended for use with the new British Standard 4301 (1991). By a comparison of image visibilities of defects with line and spot standards, scratches and digs can be quantified in terms of their line-equivalent widths and spot-equivalent diameters. The codes used on optical drawings are described and guidelines for surface damage thresholds are discussed. The preferred equipment to aid the various stages of inspection and measurement is described and aflow diagram illustrating atypical system for the quality control of transmitting and reflecting components is presented.

Citation Download Citation

Lionel R. Baker "Standard for surface damage," Optical Engineering 31(8), (1 August 1992). https://doi.org/10.1117/12.58842

Published: 1 August 1992

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