Reeve, C.; Veale, R.

NBS Internal Report 73-232; 25p. June 1973.

Keywords:
Calibration; optical flat; profile; stability; standard deviation.

Abstract:
Some optical flat owners are concerned about the long term stability of their optical flats. To examine this problem, a survey was made of several optical flats which where calibrated by the National Bureau of Standards at least three times during the period from 1959 to 1972. The measured profiles of these flats are presented graphically so that the different calibrations can be compared. The conclusion of this survey is that optical flats are quite stable over a period of several years, but since the individual requirements for precision may vary greatly, it should be left up to the owner to weigh the appropriate factors in determining how frequently he needs his optical flat calibrated.

Web Site Home: Engineering Metrology Toolbox
Technical Inquiries: Daniel S. Sawyer, Group Leader
Dimensional Metrology
Sensor Science Division
Physical Measurement Laboratory
NIST, 100 Bureau Drive, Stop 8211, Gaithersburg, MD 20899-8211

The National Institute of Standards and Technology (NIST) is an agency of the U.S. Department of Commerce.
NIST / PML / Sensor Science Division

NIST Program Questions: Public Inquires Unit
(301) 975-NIST (6478) TTY (301) 975-8295
NIST, 100 Bureau Drive, Stop 3460, Gaithersburg, MD 20899-3460

Privacy Policy / Security Notice / Accessibility Statement / Disclaimer / Freedom of Information Act (FOIA) / 
Environmental Policy Statement / No Fear Act Policy / NIST Information Quality Standards / Scientific Integrity Summary

USA.gov

Date Created: Friday, October 18, 2002
Last Updated: Monday, July 1, 2019
Technical Web Site Questions: Wei Ren
Feedback and Comments: Webmaster