Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Scratch-and-dig standard revisited

Not Accessible

Your library or personal account may give you access

Abstract

The scratch standard (MIL-O-13830A) is a cosmetic standard effected by a visual comparison with a set of secondary standards that are in turn evaluated by comparison with a set of master standards. Both manufacture and certification of the secondary standards are somewhat unreliable. This paper shows that they can be classified according to the relative power scattered at a relatively small angle and describes experiments with etched gratings that have the appearance of scratches but diffract light into a broad peak between 5 and 10° off the axis of the incident beam. Some prototypes have been classified both by comparison to the master standards and by a photoelectric measurement; agreement between the two methods is good. Such gratings, used as the secondary standards, should display less intersample variation than scribed or other artifacts. The paper concludes by presenting evidence that the original primary standards have been stable over a long time.

© 1986 Optical Society of America

Full Article  |  PDF Article
More Like This
Simulating the scratch standards for optical surfaces: theory

Eric G. Johnson
Appl. Opt. 22(24) 4056-4068 (1983)

Effect of change in a normative approach on the evaluation of surface scratches on high-precision optical surfaces

Michal Špína and František Procháska
Appl. Opt. 61(7) 1593-1599 (2022)

Automated discrimination between digs and dust particles on optical surfaces with dark-field scattering microscopy

Lu Li, Dong Liu, Pin Cao, Shibin Xie, Yang Li, Yangjie Chen, and Yongying Yang
Appl. Opt. 53(23) 5131-5140 (2014)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved