Research on primary mirror lateral support structure of large-aperture telescope

Yang Wang

doi:10.1117/12.867618

13 October 2010 Research on primary mirror lateral support structure of large-aperture telescope

Yang Wang

Proceedings Volume 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 76540I (2010) https://doi.org/10.1117/12.867618
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

The primary mirror of large-aperture telescope is an important component of telescope system. The surface figure error of the primary mirror is a critical factor affecting the imaging quality of telescope system. With the augment of primary mirror aperture, the surface figure error of the primary mirror is affected by many factors, such as gravity, thermal deformation and so on. The factors that influence the surface figure error of the primary mirror are considered and analyzed roundly according to technical requirements of optical system. So the feasible project is researched on the lateral support structure of large-aperture telescope primary mirror. The primary mirror support system of large-aperture telescope is composed of axial support and lateral support. In traditional telescope, the contribution of lateral support to surface distortion is less than axial support. With increase of diameter to thickness ratio, lateral support is becoming more complicated and important than before. Lateral support is a key technology the same as axial support for the large-aperture telescope primary mirror. With the foundation of analysis, comparison and conclusion of related literature and monograph, according to primary mirror supporting principle of the large-aperture telescope. Lateral support methods, the influence of the primary mirror surface figure error due to primary mirror lateral support and lateral support structure of primary mirror are analyzed.

Citation Download Citation

Yang Wang "Research on primary mirror lateral support structure of large-aperture telescope", Proc. SPIE 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 76540I (13 October 2010); https://doi.org/10.1117/12.867618

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KEYWORDS

Mirrors

Telescopes

Error analysis

Mirror structures

Analytical research

Mercury

Imaging systems

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