Optical design of the LSST camera

Scot S. Olivier; Lynn Seppala; Kirk Gilmore

doi:10.1117/12.790264

25 July 2008 Optical design of the LSST camera

Scot S. Olivier, Lynn Seppala, Kirk Gilmore

Proceedings Volume 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation; 70182G (2008) https://doi.org/10.1117/12.790264
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

The Large Synoptic Survey Telescope (LSST) uses a novel, three-mirror, modified Paul-Baker design, with an 8.4- meter primary mirror, a 3.4-m secondary, and a 5.0-m tertiary feeding a camera system that includes a set of broad-band filters and refractive corrector lenses to produce a flat focal plane with a field of view of 9.6 square degrees. Optical design of the camera lenses and filters is integrated with optical design of telescope mirrors to optimize performance, resulting in excellent image quality over the entire field from ultra-violet to near infra-red wavelengths. The LSST camera optics design consists of three refractive lenses with clear aperture diameters of 1.55 m, 1.10 m and 0.69 m and six interchangeable, broad-band, filters with clear aperture diameters of 0.75 m. We describe the methodology for fabricating, coating, mounting and testing these lenses and filters, and we present the results of detailed tolerance analyses, demonstrating that the camera optics will perform to the specifications required to meet their performance goals.

Citation Download Citation

Scot S. Olivier, Lynn Seppala, and Kirk Gilmore "Optical design of the LSST camera", Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70182G (25 July 2008); https://doi.org/10.1117/12.790264

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