We review the various types of astronomy arrays currently available from RIO for wide-field imaging and spectroscopy. Arrays for infrared astronomy became available from RIO (previously the Santa Barbara Research Center) with the introduction of the 58×62 InSb in 1984. Since the introduction of this first array, RIO has developed and produced increasingly larger format arrays, including the 256×256 InSb array for SIRTF (Space Infrared Telescope Facility) and the Aladdin 1K×1K array. Over 70 Aladdin arrays have been delivered and are currently deployed on a number of major telescopes throughout the world. RIO is currently developing the next generation of 2K×2K format arrays. These include the 2K×2K ORION InSb array, and the VIRGO 2K×K SWIR HgCdTe array for ground-based applications and the 2K×2K InSb array for the NGST program. In addition, RIO is currently developing the next generation large format 1K×1K Si:As Impurity Band Conduction (IBC) arrays for the NGST MIR instrument.