31 May 2012 Advances in shutter drive technology to enhance man-portable infrared cameras
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With an emphasis on highest reliability, infrared (IR) imagers have traditionally used simplest-possible shutters and field-proven technology. Most commonly, single-step rotary or linear magnetic actuators have been used with good success. However, several newer shutter drive technologies offer benefits in size and power reduction, enabling man-portable imagers that are more compact, lighter, and more durable. This paper will discuss improvements in shutter and shutter drive technology, which enable smaller and more power-efficient imagers. Topics will transition from single-step magnetic actuators to multi-stepping magnetic drives, latching vs. balanced systems for blade position shock-resistance, motor and geared motor drives, and associated stepper driver electronics. It will highlight performance tradeoffs pertinent to man-portable military systems.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David Durfee, David Durfee, } "Advances in shutter drive technology to enhance man-portable infrared cameras", Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 83532A (31 May 2012); doi: 10.1117/12.931422; https://doi.org/10.1117/12.931422


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