Princeton Instruments (Princeton) is a privately held instrument company. It is principally engaged in the design and manufacture of optical coatings, spectroscopic instruments, optics and opto-mechanical assemblies. The product portifilo of the company include scientific imaging camers, spectroscopy, x-ray, and softwares. The spectroscopy unit of the company produces vacuum and UHV spectrometers for government and research laboratories and SpectraPro series of multi-grating monochromators and spectrographs. Recently, the company has developed the new GigE Vision data interface for the entire line of Megaplus cameras. Princeton acts as a subsidiary of Roper Industries. The company has manufacturing facilities in Trenton, New Jersey and Acton, Massachusetts and sales and service organizations worldwide. The company is headquartered in Massachusetts, the US.