Physics – Optics
Scientific paper
Aug 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3352...76s&link_type=abstract
Proc. SPIE Vol. 3352, p. 76-90, Advanced Technology Optical/IR Telescopes VI, Larry M. Stepp; Ed.
Physics
Optics
23
Scientific paper
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, M(subscript A), and the spherical mirror, M(subscript B), are segmented mirrors. M(subscript B) 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 M(subscript A).
Cui Xiangqun
Su Ding Qiang
Wang Yanan
Yao Zhengqiu
No associations
LandOfFree
Large-sky-area multiobject fiber spectroscopic telescope (LAMOST) and its key technology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Large-sky-area multiobject fiber spectroscopic telescope (LAMOST) and its key technology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Large-sky-area multiobject fiber spectroscopic telescope (LAMOST) and its key technology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1538651