OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 6, Iss. 10 — Oct. 1, 1967
  • pp: 1679–1681

A Precise Apertometer

P. D. Carman  »View Author Affiliations

Applied Optics, Vol. 6, Issue 10, pp. 1679-1681 (1967)

View Full Text Article

Enhanced HTML    Acrobat PDF (466 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



An instrument and technique have been developed for measuring the numerical aperture of a microscope objective to a typical accuracy of 0.0001 compared with about 0.01 for a traditional commercial apertometer.

© 1967 Optical Society of America

Original Manuscript: February 3, 1967
Published: October 1, 1967

P. D. Carman, "A Precise Apertometer," Appl. Opt. 6, 1679-1681 (1967)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. Specification for Photographic Lenses; Definitions, Methods and Accuracy of Marking (British Standards Institution, London, 1963), B.S. 1019.
  2. Methods of Designating and Measuring Apertures and Related Quantities Pertaining to Photographic Lenses (United States of America Standards Institute, New York, 1958), PH 3.29.
  3. P. D. Carman, W. N. Charman, J. Opt. Soc. Am. 54, 1121 (1964). [CrossRef]
  4. W. N. Charman, A. Olin, Phot. Sci. Eng. 9, 385 (1965).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited