Translator Disclaimer
25 August 1998 Large-sky-area multiobject fiber spectroscopic telescope (LAMOST) and its key technology
Author Affiliations +
The optical system of LAMOST is a special reflecting Schmidt system. It has an aperture of 4 m, f ratio of 5 and a 5 degree(s) field of view. The main optical axis is fixed on the meridian plane and tilted 25 degree(s) to the horizontal from south to north. The celestial objects were observed for 1.5 hours when they pass through the meridian. The reflecting Schmidt plane, MA, and the spherical mirror, MB, are segmented mirrors. MB is fixed on the foundation. The shape of the reflecting Schmidt plate has to be changed with different declination (delta) and in the tracking process. This is achieved with active optics. About 4000 optical fibers are planed to put on the focal surface. Some key technologies for LAMOST have been studied and presented in this paper: the calculation and testing method for thin mirror and segmented mirror active optics; the preliminary calculation and the experiment for active optics; the simulated calculation for optical image quality in 1.5 hours observation; a preliminary design of the alt-azimuth mounting and tracking system of MA.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ding-qiang Su, Xiangqun Cui, Ya-nan Wang, and Zheng qiu Yao "Large-sky-area multiobject fiber spectroscopic telescope (LAMOST) and its key technology", Proc. SPIE 3352, Advanced Technology Optical/IR Telescopes VI, (25 August 1998);


Two telescope configurations for China
Proceedings of SPIE (May 31 1994)
BigBOSS: a stage IV dark energy redshift survey
Proceedings of SPIE (September 23 2012)
Experiment system of LAMOST active optics
Proceedings of SPIE (September 27 2004)
Control and network system of position actuators in LAMOST
Proceedings of SPIE (February 03 2003)

Back to Top