22 July 2016 The legacy of filter design and how that has extended into current choices for advanced astronomical filter
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Abstract
SCHOTT was one of the interference filters inventors starting around 1935. Based on this legacy optical bandpass filters were design, manufactured, and integrated into optical instruments in satellites. In addition a special blocking coating was developed reducing cross talk and ghost. For ground based telescopes steep-edge narrow bandpass filters with low transmitted wavefront error and about 100 mm x 100 mm size were manufactured pushing the filter design and the technology to its limits. The reached results for design and measurements will be shown on an H-alpha filter.
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T. Hull, S. Reichel, U. Brauneck, V. Naulin, A. Marín-Franch, "The legacy of filter design and how that has extended into current choices for advanced astronomical filter", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99122W (22 July 2016); doi: 10.1117/12.2232362; https://doi.org/10.1117/12.2232362
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