TY - GEN
T1 - Optimal scanning function for capturing segmented mirror in space optics system
AU - Zhang, Xiaofang
AU - Yu, Xin
AU - Wang, Xia
AU - Liu, Jiaguo
AU - Yang, Kui
PY - 2008
Y1 - 2008
N2 - A great deal segmented mirror errors consisting of piston and tip-tilt exist when space large aperture segmented optics system deploys. These errors will result in the departure of segmented mirrors images from the view. For that, proper scanning function should be adopted to control actuators rotating the segmented mirror, so that the images of segmented mirror can be put into the view and placed in the ideal position. The key of capturing segmented mirror images is selecting an optimal scanning function. This paper put forward the optimal scanning function principle based on capturing images by the fastest velocity. The scanning functions, such as screw-type, rose-type, and helianthus-type and so on, have their own merits and demerits. In my paper, the scanning functions above will be analyzed and discussed. As a sample, a simulation experiment is carried to study the effects of different scanning functions on three mirror astigmatism system, whose primary mirror with six segmented mirror. In simulation experiment, the piston and tip-tilt errors scale and the ideal position of segmented mirror are given, three scanning functions above are used to realize the capture process by utilizing the improved optics design software ZEMAX, the relationship between scanning functions and optical system are analyzed and the optimal one is determined.
AB - A great deal segmented mirror errors consisting of piston and tip-tilt exist when space large aperture segmented optics system deploys. These errors will result in the departure of segmented mirrors images from the view. For that, proper scanning function should be adopted to control actuators rotating the segmented mirror, so that the images of segmented mirror can be put into the view and placed in the ideal position. The key of capturing segmented mirror images is selecting an optimal scanning function. This paper put forward the optimal scanning function principle based on capturing images by the fastest velocity. The scanning functions, such as screw-type, rose-type, and helianthus-type and so on, have their own merits and demerits. In my paper, the scanning functions above will be analyzed and discussed. As a sample, a simulation experiment is carried to study the effects of different scanning functions on three mirror astigmatism system, whose primary mirror with six segmented mirror. In simulation experiment, the piston and tip-tilt errors scale and the ideal position of segmented mirror are given, three scanning functions above are used to realize the capture process by utilizing the improved optics design software ZEMAX, the relationship between scanning functions and optical system are analyzed and the optimal one is determined.
KW - Capture
KW - Optimal
KW - Piston and tip-tilt errors
KW - Scanning function
KW - Segmented mirror
UR - https://www.scopus.com/pages/publications/43249114441
U2 - 10.1117/12.790820
DO - 10.1117/12.790820
M3 - Conference contribution
AN - SCOPUS:43249114441
SN - 9780819467645
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - International Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology
T2 - International Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology
Y2 - 9 September 2007 through 12 September 2007
ER -