The Center of Curvature Optical Assembly for the JWST Primary Mirror Cryogenic Optical Test

被引:4
|
作者
Wells, Conrad [1 ]
Olczak, Gene [1 ]
Merle, Cormic [1 ]
Dey, Tom [1 ]
Waldman, Mark [1 ]
Whitman, Tony [1 ]
Wick, Eric [1 ]
Peer, Aaron [1 ]
机构
[1] ITT Geospatial Syst, Rochester, NY 14606 USA
来源
MODERN TECHNOLOGIES IN SPACE- AND GROUND-BASED TELESCOPES AND INSTRUMENTATION | 2010年 / 7739卷
关键词
James Webb Space Telescope; JWST; interferometry; null lens;
D O I
10.1117/12.858617
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The James Webb Space Telescope (JWST) Optical Telescope Element (OTE) consists of a 6.6 m clear aperture, all-reflective, three-mirror anastigmat. The 18-segment primary mirror (PM) presents unique and challenging assembly, integration, alignment and testing requirements. A full aperture center of curvature optical test is performed in cryogenic vacuum conditions at the integrated observatory level to verify PM performance requirements. The Center of Curvature Optical Assembly (CoCOA), designed and being built by ITT satisfies the requirements for this test. The CoCOA contains a multi wave interferometer, patented reflective null lens, actuation for alignment, full in situ calibration capability, coarse and fine alignment sensing systems, as well as a system for monitoring changes in the PM to CoCOA distance. This paper will introduce the systems level architecture and optical layout of the CoCOA and its main subsystems.
引用
收藏
页数:12
相关论文
共 50 条
  • [1] The Center of Curvature Optical Assembly for the JWST Primary Mirror Cryogenic Optical Test: Optical Verification
    Wells, Conrad
    Olczak, Gene
    Merle, Cormic
    Dey, Tom
    Waldman, Mark
    Whitman, Tony
    Wick, Eric
    Peer, Aaron
    INTERFEROMETRY XV: TECHNIQUES AND ANALYSIS, 2010, 7790
  • [2] Characterization of the JWST Pathfinder mirror dynamics using the center of curvature optical assembly (CoCOA)
    Wells, Conrad
    Hadaway, James B.
    Olczak, Gene
    Cosentino, Joseph
    Johnston, John D.
    Whitman, Tony
    Connolly, Mark
    Chaney, David
    Knight, J. Scott
    Telfer, Randal
    SPACE TELESCOPES AND INSTRUMENTATION 2016: OPTICAL, INFRARED, AND MILLIMETER WAVE, 2016, 9904
  • [3] Performance of the primary mirror center-of-curvature optical metrology system during cryogenic testing of the JWST Pathfinder telescope
    Hadaway, James B.
    Wells, Conrad
    Olczak, Gene
    Waldman, Mark
    Whitman, Tony
    Cosentino, Joseph
    Connolly, Mark
    Chaney, David
    Telfer, Randal
    SPACE TELESCOPES AND INSTRUMENTATION 2016: OPTICAL, INFRARED, AND MILLIMETER WAVE, 2016, 9904
  • [4] JWST Optical Telescope Element Center of Curvature Test
    Saif, Babak
    Keski-Kuha, Ritva
    Chaney, David
    Greenfield, Perry
    Van Gorkom, Kyle
    Brooks, Keira
    Hack, Warren
    Bluth, Marcel
    Bluth, Josh
    Sanders, James
    Smith, Koby
    Carey, Larkin
    Chaung, Sze
    Feinberg, Lee
    Tournois, Severine
    Smith, W. Scott
    Kradinov, Vladimir
    SPACE TELESCOPES AND INSTRUMENTATION 2018: OPTICAL, INFRARED, AND MILLIMETER WAVE, 2018, 10698
  • [5] The optical metrology system for cryogenic testing of the JWST primary mirror segments
    Hadaway, James B.
    Chaney, David M.
    Carey, Larkin B.
    OPTICAL MANUFACTURING AND TESTING IX, 2011, 8126
  • [6] Current concepts for cryogenic optical testing of the JWST secondary mirror
    Smith, KZ
    Schwenker, JP
    Brown, RJ
    Sullivan, JF
    OPTICAL FABRICATION, METROLOGY, AND MATERIAL ADVANCEMENTS FOR TELESCOPES, 2004, 5494 : 141 - 151
  • [7] Wavefront calibration testing of the James Webb Space Telescope primary mirror center of curvature optical assembly
    ITT Exelis Geospatial Systems, 400 Initiative Drive, Rochester, NY 14606, United States
    不详
    Proc SPIE Int Soc Opt Eng,
  • [8] Wavefront calibration testing of the James Webb Space Telescope primary mirror center of curvature optical assembly
    Olczak, Gene
    Wells, Conrad
    Fischer, David J.
    Connolly, Mark T.
    MODERN TECHNOLOGIES IN SPACE-AND GROUND-BASED TELESCOPES AND INSTRUMENTATION II, 2012, 8450
  • [9] Cryogenic optical testing results of JWST Aspheric Test Plate Lens
    Ball Aerospace and Technologies Corp., 1600 Commerce Street, Boulder, CO, 80301, United States
    Proc SPIE Int Soc Opt Eng,
  • [10] Cryogenic optical testing results of JWST aspheric test plate lens
    Smith, Koby Z.
    Towell, Timothy C.
    OPTICAL MANUFACTURING AND TESTING IX, 2011, 8126