Literature DB >> 16778931

Wide-field Fizeau imaging telescope: experimental results.

R L Kendrick1, Jean-Noel Aubrun, Ray Bell, Robert Benson, Larry Benson, David Brace, John Breakwell, Larry Burriesci, Eric Byler, John Camp, Gene Cross, Peter Cuneo, Peter Dean, Ramji Digumerthi, Alan Duncan, John Farley, Andy Green, Howard H Hamilton, Bruce Herman, Kris Lauraitis, Erich de Leon, Kenneth Lorell, Rob Martin, Ken Matosian, Tom Muench, Mel Ni, Alice Palmer, Dennis Roseman, Sheldon Russell, Paul Schweiger, Rob Sigler, John Smith, Richard Stone, David Stubbs, Gregg Swietek, John Thatcher, C Tischhauser, Harvey Wong, Vassilis Zarifis, Kurt Gleichman, Rick Paxman.   

Abstract

A nine-aperture, wide-field Fizeau imaging telescope has been built at the Lockheed-Martin Advanced Technology Center. The telescope consists of nine, 125 mm diameter collector telescopes coherently phased and combined to form a diffraction-limited image with a resolution that is consistent with the 610 mm diameter of the telescope. The phased field of view of the array is 1 murad. The measured rms wavefront error is 0.08 waves rms at 635 nm. The telescope is actively controlled to correct for tilt and phasing errors. The control sensing technique is the method known as phase diversity, which extracts wavefront information from a pair of focused and defocused images. The optical design of the telescope and typical performance results are described.

Year:  2006        PMID: 16778931     DOI: 10.1364/ao.45.004235

Source DB:  PubMed          Journal:  Appl Opt        ISSN: 1559-128X            Impact factor:   1.980


  1 in total

1.  Optical sparse aperture imaging with faint objects using improved spatial modulation diversity.

Authors:  Zongliang Xie; Haotong Ma; Bo Qi; Ge Ren; Xiaojun He; Li Dong; Yufeng Tan; Shan Qiao
Journal:  Sci Rep       Date:  2017-12-13       Impact factor: 4.379

  1 in total

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