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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 9, Iss. 9 — Sep. 1, 1970
  • pp: 2172–2175

Experimental Evaluation of Geometric Accuracy and Stability of the Image Orthicon for Astronomical Applications

W. T. Powers and J. Burns  »View Author Affiliations


Applied Optics, Vol. 9, Issue 9, pp. 2172-2175 (1970)
http://dx.doi.org/10.1364/AO.9.002172


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Abstract

Distortions were measured at thirty-six positions over the photocathodes of four different types of image orthicon tubes operated in a high precision camera system designed for astronomical use. Rms values of distortion for these tubes were found to be of the order of 0.2% to 0.3% of the picture width. Changes in distortion over 16–26-h periods of operation were measured for three tubes and were found to be of the order of 0.02% to 0.03% of the picture width, making it possible to correct astronomical TV images for distortion to within a few parts in 104.

© 1970 Optical Society of America

History
Original Manuscript: February 6, 1970
Published: September 1, 1970

Citation
W. T. Powers and J. Burns, "Experimental Evaluation of Geometric Accuracy and Stability of the Image Orthicon for Astronomical Applications," Appl. Opt. 9, 2172-2175 (1970)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-9-9-2172

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