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Proceedings Paper

Utilization of industrial manufacturing know-how for adaptation of existing large telescopes to modern optical receivers
Author(s): Wolfgang Heilemann; Helgard Naumann
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Paper Abstract

Instrumental problem/Task: Adaptation of large Ritchey- Chretien Telescopes to CCD-detector fields of the 90-s. A solution could be found as a result of a common development of Research Institutes and optical industry. Focal reducer systems for 2.2 m and 3.5 m telescope at Calar Alto, Almeria, Spain. A focal reducer system is a lens system, which is highly corrected and optimized for a wide spectral range (350 nm . . . 1000 nm) and reduces the telescope image field to the size of the CCD-chips. The system complies to the following requirements: Improved polychromatic imaging quality. Well- accessible position of the pupil, with enough space for filter turret, dispersing elements such as grating prisms, Fabry- Perot etalons, etc. Good accessibility of the focus area, with the user having the possibility to insert a detector of his preference. The poster describes the optical design of the focal reducer systems and shows practical application results with the 2.2 m and 3.5 m MPI telescopes. Furthermore the poster reviews the utilization of the same know how for the development of modern imaging spectrographs with high photometric stability. As an example the design for the Potsdam Multiaperture Spectrophotometer PMAS, which is currently under manufacturing in strong co-operation with Astronomical Institute Potsdam/Germany, is described in the poster.

Paper Details

Date Published: 9 July 1998
PDF: 9 pages
Proc. SPIE 3355, Optical Astronomical Instrumentation, (9 July 1998); doi: 10.1117/12.316841
Show Author Affiliations
Wolfgang Heilemann, Carl Zeiss Jena GmbH (Germany)
Helgard Naumann, Carl Zeiss Jena GmbH (Germany)

Published in SPIE Proceedings Vol. 3355:
Optical Astronomical Instrumentation
Sandro D'Odorico, Editor(s)

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