Design, build, and test of the next generation wide field of view spaceborne optical assemblies

Ryan S. Bronson

doi:10.1117/12.2629454

29 August 2022 Design, build, and test of the next generation wide field of view spaceborne optical assemblies

Ryan S. Bronson

Proceedings Volume 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V; 121880Q (2022) https://doi.org/10.1117/12.2629454
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Wide field-of-view lens assemblies covering a full field of view of <100° across the diagonal dimension of the detector have been designed, built, and tested for spaceborne applications for various science objectives like landing operations, docking maneuvers, characterization of unknown regolith and other geological features. The all refractive lenses were designed for both telescopic and microscopic, high-resolution (≥227 l.p./mm), imaging scenarios using a nearly identical bill of materials (BOM). The optical designs have been achromatized and passively athermalized over the visible waveband for optimal performance across typical expected operating temperature range. The opto-mechanical designs have been ruggedized for severe spaceborne environmental conditions. This document demonstrates the design approach, assembly techniques, and test methodology of two different lens configurations using a nearly identical BOM. The first is a wide-angle telescope supporting a 5 Gpixel visible array with a nominal target range from 1m to infinity. The second is a close focus “microscopic” imager, with a nominal target distance of <100mm. A total of four lenses were built and tested; three of which were the telescopic configuration and one microscopic imager. The measured performance of the lens assemblies is near diffraction-limited and meets all flight system level requirements. This design methodology has resulted in significant realized cost reductions and time savings while simultaneously being able to push the envelope with next-generation optical solutions for complex spaceborne applications.

Conference Presentation

Citation Download Citation

Ryan S. Bronson "Design, build, and test of the next generation wide field of view spaceborne optical assemblies", Proc. SPIE 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 121880Q (29 August 2022); https://doi.org/10.1117/12.2629454

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