Open AccessA Photoelectric Focus and Seeing Monitor for Solar Telescopes
Author(s) -
J. M. Beckers
Publication year - 1966
Publication title -
applied optics
Language(s) - English
Resource type - Journals
ISSN - 0003-6935
DOI - 10.1364/ao.5.000301
Subject(s) - optics , telescope , focus (optics) , solar telescope , optical telescope , physics , photoelectric effect , remote sensing , atmospheric optics , reflecting telescope , astronomy , geology
A solar focus and seeing monitor is described which utilizes the properties of an image of the telescope objective formed after putting a knife edge next to the solar limb. In a very simple way simultaneous measurements are obtained for the telescope focus and for the image motion and blurring produced by the earth's atmosphere.
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