17 May 2006 Dual-band dual field-of-view TVWS prototype
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Abstract
A dual band thermal/visible weapon sight (TVWS) prototype was developed by INO in collaboration with DRDC Valcartier. The TVWS operates in the 8-12 μm infrared (IR) and 300-900 nm visible wavebands for enhanced vision capabilities in day and night operations. It is equipped with lightweight athermalized coaxial catadioptric objectives, a bolometric IR imager operating in a microscan mode providing an effective resolution of 320 x 240 pixels and a visible image intensifier of 768 x 493 pixels. The TVWS is equipped with a miniature shutter for automatic offset calibration. Real-time imaging at 30 fps is available. Both the visible and IR images can be toggled with a single touch button and displayed on an integrated color micro liquid crystal display (LCD). The TVWS also has a standard video output via a coaxial connector. An integrated wireless analog RF link can be used to send images to a remote command control. The sight has an adjustable electronic crosshair and two manual focuses from 25 m to infinity. On-board processing capabilities were added to introduce specific functionalities such as image polarity inversion (black hot/white hot) and image enhancement. This TVWS model is also very lightweight (~ 1900 grams) and compact (volume of 142 cubic inches). It offers human size target detection at 800 m and recognition at 200 m (Johnson criteria) with the IR waveband while offering the human recognition at up to 800 m with the visible waveband. The TVWS is adapted for weaver or Picatinny rail mounting.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Bergeron, A. Bergeron, H. Jerominek, H. Jerominek, M. Doucet, M. Doucet, F. Lagacé, F. Lagacé, N. Desnoyers, N. Desnoyers, S. Bernier, S. Bernier, L. Mercier, L. Mercier, M.-A. Boucher, M.-A. Boucher, M. Jacob, M. Jacob, C. Alain, C. Alain, T. D. Pope, T. D. Pope, P. Laou, P. Laou, "Dual-band dual field-of-view TVWS prototype", Proc. SPIE 6206, Infrared Technology and Applications XXXII, 62061O (17 May 2006); doi: 10.1117/12.665538; https://doi.org/10.1117/12.665538
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