18 July 2014 Active scale changer for anamorphic, distortion free, telecentric zoom system
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We present the conception of an anamorphic and telecentric scale changer with no distortion, able to provide magnifications in the range of 2 to 30 without any interchangeable optics, dedicated to ground or space applications. Several optical designs are investigated and the final configuration is based on off-axis five mirrors system with no moving elements. Four active mirrors are adapted to four different zoom configurations. A specific mechanical profile with variable thickness distribution is simulated and optimized on each mirror to allow using a minimal number of actuators. An opto-mechanical design will be presented, showing the implementation of actuators on the system. This work is done in the frame of the ANR project OASIX and will produce a lab prototype in 2015.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xin Wang, Xin Wang, Emmanuel Hugot, Emmanuel Hugot, Anaïs Bernard, Anaïs Bernard, Fabrice Madec, Fabrice Madec, Sabri Lemared, Sabri Lemared, "Active scale changer for anamorphic, distortion free, telecentric zoom system", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 91512O (18 July 2014); doi: 10.1117/12.2056276; https://doi.org/10.1117/12.2056276

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