Wavefront control of large optical systemsSeveral levels of wavefront control are necessary for the optimum performance of very large telescopes, especially segmented ones like the Large Deployable Reflector. In general, the major contributors to wavefront error are the segments of the large primary mirror. Wavefront control at the largest optical surface may not be the optimum choice because of the mass and inaccessibility of the elements of this surface that require upgrading. The concept of two-stage optics was developed to permit a poor wavefront from the large optics to be upgraded by means of a wavefront corrector at a small exit pupil of the system.
Document ID
19910054863
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Meinel, Aden B. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Meinel, Marjorie P. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Breckinridge, J. B. (JPL Pasadena, CA, United States)