PRINCETON, N.J., July 29 -- Sensors Unlimited Inc., a provider of indium gallium arsenide (InGaAs) technology, has received a subcontract from Battelle for a 12-month, $530,000 program to develop what it says will be the first all-solid-state InGaAs shortwave infrared (IR) range-gated camera system. Battelle, based in Columbus, Ohio, develops technology and manages laboratories for government and commercial customers. The prime contract was issued by the US Army Research Laboratory in Adelphia, Md. 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