Design and analysis of a sub-aperture scanning machine for the transmittance measurements of large-aperture optical system

Yingwei He; Ping Li; Guojin Feng; Li Cheng; Yu Wang; Houping Wu; Zilong Liu; Chundi Zheng; Dingguo Sha

doi:10.1117/12.869044

9 November 2010 Design and analysis of a sub-aperture scanning machine for the transmittance measurements of large-aperture optical system

Yingwei He, Ping Li, Guojin Feng, Li Cheng, Yu Wang, Houping Wu, Zilong Liu, Chundi Zheng, Dingguo Sha

Author Affiliations +

Proceedings Volume 7849, Optical Design and Testing IV; 78491K (2010) https://doi.org/10.1117/12.869044
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

For measuring large-aperture optical system transmittance, a novel sub-aperture scanning machine with double-rotating arms (SSMDA) was designed to obtain sub-aperture beam spot. Optical system full-aperture transmittance measurements can be achieved by applying sub-aperture beam spot scanning technology. The mathematical model of the SSMDA based on a homogeneous coordinate transformation matrix is established to develop a detailed methodology for analyzing the beam spot scanning errors. The error analysis methodology considers two fundamental sources of scanning errors, namely (1) the length systematic errors and (2) the rotational systematic errors. As the systematic errors of the parameters are given beforehand, computational results of scanning errors are between -0.007~0.028mm while scanning radius is not lager than 400.000mm. The results offer theoretical and data basis to the research on transmission characteristics of large optical system.

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Yingwei He, Ping Li, Guojin Feng, Li Cheng, Yu Wang, Houping Wu, Zilong Liu, Chundi Zheng, and Dingguo Sha "Design and analysis of a sub-aperture scanning machine for the transmittance measurements of large-aperture optical system", Proc. SPIE 7849, Optical Design and Testing IV, 78491K (9 November 2010); https://doi.org/10.1117/12.869044

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