LightPath Technologies (“LightPath,” the “Company,” or “we”), a leading vertically integrated global manufacturer, distributor, and integrator of proprietary optical and infrared components and high-level assemblies, today announced that it has completed the acquisition of ISP Optics Corporation (“ISP”) for a purchase price of US $18 million, subject to post-closing adjustments, of which $12 million was paid in cash with the balance in the form of five-year subordinated notes issued to the sellers.