Optical design for DIVA

Walter Seifert; Holger Mandel; Stefan J. Wagner; Ulrich Bastian; Siegfried Roeser

doi:10.1117/12.324447

28 August 1998 Optical design for DIVA

Walter Seifert, Holger Mandel, Stefan J. Wagner, Ulrich Bastian, Siegfried Roeser

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Proceedings Volume 3356, Space Telescopes and Instruments V; (1998) https://doi.org/10.1117/12.324447
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

Abstract

DIVA (deutsches interferometer fuer vielkanalphotometrie und astrometrie) is a project of a small satellite, aiming to measure positions, proper motions, parallaxes and spectra of several million stars. DIVA will carry two Fizea interferometers with a baseline of 100 mm using a novel telescope design. It consists of a Gregory configuration with high secondary magnification and a four-component field lens system at the intermediate focus. We present the optical layout which allows diffraction-limited imaging over a 0.5 degree of view in the wavelength range 400-1000 nm. Critical aspects of the design are discussed. The present status of the project is briefly outlined.

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Walter Seifert, Holger Mandel, Stefan J. Wagner, Ulrich Bastian, and Siegfried Roeser "Optical design for DIVA", Proc. SPIE 3356, Space Telescopes and Instruments V, (28 August 1998); https://doi.org/10.1117/12.324447

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