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Inrad Optics, Inc., together with its subsidiaries, manufactures and sells glass, crystal, and metal based optical components, and sub-assemblies. The company offers UV-IR optics and assemblies, such as precision custom optics and thin film optical coatings; glass and single crystal substrates; and deposit optical thin films, and assemble sub-components used in advanced photonic systems. It also offers large form factor transmission flats, optical windows for airborne applications, multi-element optical assemblies, lenses, mirrors, polarizing optics, prisms, and wave plates; interferometer and transmission flats; and multi-element optical assemblies. In addition, the company provides X-Ray imaging optics, including bent x-ray monochromators from crystal materials and orientations; and metal substrate optics and assemblies, such as precision aspheres, large and small metal mirrors, low RMS surface finish polished mirrors, reflective Porro prisms, and thermally stable optical mirrors; and void-free gold and electroless nickel plating specialties. Inrad Optics, Inc. exports its products Canada, the Czeck Republic, Germany, Singapore, Europe, Israel, and Japan. The company was formerly known as Photonic Products Group, Inc. and changed its name to Inrad Optics, Inc. in 2012. Inrad Optics, Inc. was incorporated in 1973 and is based in Northvale, New Jersey.

The LGL Group, Inc., together with its subsidiaries, engages in the design, manufacture, and marketing of frequency and spectrum control products in the United States and internationally. The company offers NTP Servers, broadband amplifiers, RF distribution, 1PPS distribution, and fiber optic distribution. It also offers time and frequency instrumentation, including frequency standards, time standards, and time code generators. In, addition it offers wide range of ancillary products, such as RF distribution amplifiers, digital distribution amplifiers, time code distribution amplifiers, and redundancy switches. Its products are used in computer networking, satellite ground stations, electric utilities, metrology, broadcasting, and telecommunication systems. The company was formerly known as Lynch Corporation and changed its name to The LGL Group, Inc. The LGL Group, Inc. was founded in 1917 and is based in Orlando, Florida.

Orbit International Corp. engages in the design, manufacture, and sale of electronic components and subsystems, and commercial and custom power units for prime contractors, government procurement agencies, and research and development laboratories worldwide. The company operates in two segments, Electronics Group and Power Group. The Electronics Group segment designs, manufactures, and sells customized electronic components and subsystems. This segment offers remote control units, intercommunication panels, displays, keyboards, keypads and pointing devices, operator control trays, and command display units, as well as provides LCD display modules design and enhancement services. The Power Group segment designs and manufactures commercial power units, AC power, frequency converters, uninterruptible power supplies, armament systems, and commercial-off-the-shelf power solutions, as well as inverters. The company was formerly known as Orbit Instrument Corp. and changed its name to Orbit International Corp. in July 1991. Orbit International Corp. was founded in 1957 and is based in Hauppauge, New York.

Ostin Technology Group Co., Ltd. designs, develops, and manufactures thin-film transistor liquid crystal display (TFT-LCD) modules and polarizers in China. It offers display modules to markets, such as consumer electronics, including AIOs, monitors, laptop computers, and tablets; automotive displays, including dashboard, and navigation and multimedia systems; and commercial LCD displays, which are used to display multimedia graphics, such as company advertisements, promotions, scoreboards, and traffic signs in education, medical treatment, business, outdoor, and cultural construction industries. The company sells its products directly to customers, as well as to customers' designated system integrators. Ostin Technology Group Co., Ltd. was founded in 2010 and is based in Nanjing, China.