The MICADO first light imager for the ELT: relay optics opto-mechanical final design

Barboza, Santiago; Boné, André; Rodeghiero, Gabriele; Harris, Robert J.; Jost, Joshua; Pott, Jörg-Uwe; Rohloff, Ralf-Rainer; Müller, Friedrich; Hofferbert, R.; Bizenberger, Peter; Ramos, J.; Münch, Norbert; Mohr, Lars; Schlossmacher, Wolfram; Stępień, Paula; Müller, Michael

doi:10.1117/12.2628895

Cited by 1 publication

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“…Fifteen points are grouped by a minimum distance of points for each unit. The first stage: two-point units are (1,5), (2,6) and (8,11); three-point units are (3,4,7), (9,12,13) and (10,14,15). The first-stage balance point 1 , 2 , .…”

Section: Gravity Balance System Modelmentioning

confidence: 99%

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Research on the Multi-Point Gravity Balance Method for the Large-Aperture Space Camera in the Imaging Quality Test

Zhang

Wang

et al. 2023

Photonics

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The large-aperture space camera needs gravity unloading in the ground imaging quality test. The multi-point gravity balance method is mainly applied to the object with symmetrical structure and regular mass distribution, such as the primary mirror of the space camera. There is no relevant research on whether large-aperture space cameras with large weight and low stiffness can be unloaded by a multi-point gravity balance system. Based on the equivalent statically determinate structure and the classical equation of force method, the load-solving method of a multi-point gravity balance system is studied. The mathematical model of a two-point unit and a three-point unit is established with the principle of force balance. The mathematical model of a gravity balance system is built with the unit-grouping principle. A 15-point gravity balance system of a large-aperture space camera is established. The displacements of the mirrors under the multi-point gravity balance system are much smaller than the displacements under the traditional support by the finite element analysis, which can realize the imaging quality test. The multi-point gravity balance method is effective on the space camera imaging quality test.

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Section: Gravity Balance System Modelmentioning

confidence: 99%

“…Photonics 2023, 10, x FOR PEER REVIEW 2 of 13 [6]. The support of the mirror of the European Extremely Large Telescope E-ELT is a 27point whiffletree support structure [7][8][9]. The support of the mirror of the TMT telescope is a 27-point whiffletree support structure [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Research on the Multi-Point Gravity Balance Method for the Large-Aperture Space Camera in the Imaging Quality Test

Zhang

Wang

et al. 2023

Photonics

View full text Add to dashboard Cite

show abstract

The MICADO first light imager for the ELT: relay optics opto-mechanical final design

Cited by 1 publication

References 2 publications

Research on the Multi-Point Gravity Balance Method for the Large-Aperture Space Camera in the Imaging Quality Test

Research on the Multi-Point Gravity Balance Method for the Large-Aperture Space Camera in the Imaging Quality Test

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