NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Tolerance analysis of optical telescopes using coherent addition of wavefront errorsA near diffraction-limited telescope requires that tolerance analysis be done on the basis of system wavefront error. One method of analyzing the wavefront error is to represent the wavefront error function in terms of its Zernike polynomial expansion. A Ramsey-Korsch ray trace package, a computer program that simulates the tracing of rays through an optical telescope system, was expanded to include the Zernike polynomial expansion up through the fifth-order spherical term. An option to determine a 3 dimensional plot of the wavefront error function was also included in the Ramsey-Korsch package. Several assimulation runs were analyzed to determine the particular set of coefficients in the Zernike expansion that are effected by various errors such as tilt, decenter and despace. A 3 dimensional plot of each error up through the fifth-order spherical term was also included in the study. Tolerance analysis data are presented.
Document ID
19820009174
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Davenport, J. W.
(James Madison Univ. Harrisonburg, VA, United States)
Date Acquired
August 10, 2013
Publication Date
February 1, 1982
Publication Information
Publication: Alabama Univ. in Huntsville The 1981 NASA(ASEE Summer Fac. Fellowship Program
Subject Category
Optics
Accession Number
82N17048
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Document Inquiry

Available Downloads

There are no available downloads for this record.
No Preview Available