Optomechanical design of a multi-axis stage for the SPARCLE telescope

Bruce R. Peters; Timothy Scott Blackwell; Ye Li; Joseph M. Geary; Farzin Amzajerdian; Deborah Bailey

doi:10.1117/12.328524

29 October 1998 Optomechanical design of a multi-axis stage for the SPARCLE telescope

Bruce R. Peters, Timothy Scott Blackwell, Ye Li, Joseph M. Geary, Farzin Amzajerdian, Deborah Bailey

Proceedings Volume 3429, Current Developments in Optical Design and Engineering VII; (1998) https://doi.org/10.1117/12.328524
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

A critical component in the 2-micrometer coherent spaced-based lidar system (SPARCLE) is the compact, off-axis, 25-cm aperture telescope. The stressing optical performance demanded from this telescope coupled with the difficulty associated with aligning such a fast, off-axis system; has created the need for a multiple-axis alignment stage for the secondary mirror. Precision micrometer kinematic mounts were used in the laboratory to demonstrate the ability to successfully align the telescope. For the flight configuration, a more robust and considerably smaller stage (both in size and weight) had to be designed in order to fit within the space shuttle packaging constraints. The new stage operates with multiple degrees of freedom of motion to achieve micrometer precision alignment and then uses a mechanical multiple point support to lock-in the alignment and provide stability. The optomechanical design of the flight stage is described.

Citation Download Citation

Bruce R. Peters, Timothy Scott Blackwell, Ye Li, Joseph M. Geary, Farzin Amzajerdian, and Deborah Bailey "Optomechanical design of a multi-axis stage for the SPARCLE telescope", Proc. SPIE 3429, Current Developments in Optical Design and Engineering VII, (29 October 1998); https://doi.org/10.1117/12.328524

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KEYWORDS

Space telescopes

Telescopes

LIDAR

Mirrors

Optical alignment

Sensors

Optomechanical design

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