Preliminary design analysis for the solar optical telescope main mirror actuator

Details Preliminary design analysis for the solar optical telescope main mirror actuator Preliminary design analysis for the solar optical telescope main mirror actuator

Aug 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977stin...7821999d&link_type=abstract

Unknown

Computer Science

Actuators, Mirrors, Telescopes, Experiment Design, Focal Plane Devices, Sun

Scientific paper

The resolution of the SOT Gregorian telescope was maintained if the conic foci of the elliptical secondary and parabolic primary were made to coincide within plus or minus 38 microns across the prime focus plane and to within 5 microns in focus. An error in coincidence across the focal plane caused all point images to show additional coma with all the comatic tails pointing in the same direction. An error in focus became magnified by the square of the magnification of the secondary and simply increased the diameter of the point source. Offsetting or rastering the sun may be accomplished by swinging the primary in an arc about the point of coincidence of the conic foci so long as the coincidence is kept to within the tolerance stated.

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