OSA's Digital Library

Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 41, Iss. 2 — Feb. 1, 1951
  • pp: 94–94

Theory and Use of the Dioptometer


JOSA, Vol. 41, Issue 2, pp. 94-94 (1951)

View Full Text Article

Acrobat PDF (523 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



In the use of a visual telescopic system, the variations in sign and curvature of the wave front of the light emerging from the eyepiece from various points in the apparent field, control the detail which may be seen in an image. In order to be able to measure the sign and magnitude of this curvature, a device, referred to as Dioptometer D-2, has been designed and constructed. The dioptometer is a telescopic system which may be focused on objects appearing to be located at different distances from its entrance pupil. The focusing mechanism of the dioptometer is calibrated in terms of diopters in order that the data obtained using it may be related to the impairment of the performance caused by imperfections in an optical system under test, from the point of view of the human eye. Dioptometer D-2 has been used in image quality studies in which over 500 different telescopic systems of 75 different designs were involved. In these studies, over 100,000 measurements were made. These included measurements of astigmatism, curvature of the objective field, curvature of the ocular field, spherical aberration, chromatic aberration, the diopter settings of reticles, and parallax. It has been shown that the measurements of these quantities, by means of the dioptometer, are in close agreement with measurements made with much more complex and costly equipment presently being used.

HOWARD S. COLEMAN, MADELINE F. COLEMAN, and DAVID L. FRIDGE, "Theory and Use of the Dioptometer," J. Opt. Soc. Am. 41, 94-94 (1951)

Sort:  Journal  |  Reset


References are not available for this paper.

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.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited