18 July 2014 Active scale changer for anamorphic, distortion free, telecentric zoom system
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Abstract
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.
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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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