Our Company background

World Leader in Photonics Test Instrumentation – since 1964.

EOI, world leader in photonics testing


EOI was founded by Arthur J. Cussen and incorporated in 1964. Today, EOI is known for providing state-of-the-art equipment for both government and commercial applications. EOI currently has products in over 45 countries, with a customer list of over 1,000 accounts including some of the best-known companies in the U.S. and abroad.

EOI is dedicated to making and supporting a wide range of calibration and test equipment that covers a section of the electromagnetic spectrum starting at .1 micron (ultraviolet) and extends all the way out to 20 microns (long wave infrared) for the test community. EOI’s products include UV, Visible (photopic), and Infrared Sources for Calibration, and Testing Equipment, such as Infrared Test Sets, Target Simulators, Collimators, Detector Test Sets, Radiometers, and Complete Turnkey Test Systems. This technology is used for such diverse applications as weather analysis, environmental studies, search and rescue, fire fighting, night vision, missile guidance, industrial temperature control, non-destructive testing, and quality control in various industrial processes.

In June 2016, Electro Optical Industries, based in Santa Barbara, CA, merged with HGH Infrared Systems, based in Boston, MA, to propose an enhanced range of high-end product lines, including thermographic cameras for process control monitoring and infrared wide area surveillance systems, Spynel, for protection of critical infrastructures

(For more information about the merger, see the News section).