The OIR / Pattern Generator integrates a specifically designed holographic pattern or symbol into a standard AN/PEQ15 filter cap which when attached in front of the AN/PEQ15 collimated laser beam, will project a 2.6 meter pattern, 300 meters away. There are currently 5 patterns to choose from (included): a circle, square, triangle, letter "T", or a plus sign. Pattern generators can be used to identify individuals in a squad by issuing a different pattern to each member.