The United States Navy’s Coastal Systems Station (CSS) - Panama City, Florida has developed an Integrated Diver Display Mask (IDDM) system for special diving applications. The IDDM contains a miniature liquid crystal display (LCD) panel, multi-element optics, microcontroller, depth transducer, RF (radio frequency) receiver, replaceable battery, and controlling software – all built directly into a dive mask. The miniature LCD displays the diver’s depth, bottom time, and bottle pressure. In addition, the display has a number of annunciators that are illuminated when certain warning, or limit conditions are reached (i.e. ascent/descent rate too fast, low bottle pressure, or low battery). The multi-element optical lens provides a clear, highly magnified image of the LCD which is viewable regardless of environmental conditions. A commercial-off-the-shelf (COTS) RF transmitter module transmits the diver’s bottle pressure to the mask. The system is operational to depths of 135 FSW. The IDDM Project was funded by the Office of Special Technology (EOD/LIC Program), Ft. Washington, Maryland. It was conducted as a joint-development project under a Cooperative Research And Development Agreement (NCRADA - NSWCCSS-98-015) between the US Navy’s Coastal Systems Station of Panama City, Florida; and American Underwater Products, Inc. (parent company of Oceanic USA and Pelagic Pressure Systems) of San Leandro, California. The paper will describe the development of the IDDM system and suggest military, scientific, and other special applications for this unique diving technology.

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