Date Published: September 21, 2017
The Large Optics Fabrication and Test (LOFT group PI: Dae Wook Kim) group developed the Simultaneous Multi-segmented mirror Orientation Test System for segmented optics application (H. Choi, I. Trumper, M. Dubin, W. Zhao, and D. W. Kim, Opt. Express 25, 18152-18164 (2017).) The localized 2D sinusoidal patterns are displayed on the screen and the CMOS camera captures the images reflected from each segment. Due to its high computing efficiency and accuracy (15 Hz, 0.8 µrad), it allows a dynamic monitoring and controlling of a multi-segmented optics system or a closed-loop optical system with a long-term stability requirement.
Simultaneous Multi-segmented mirror Orientation Test System