Profile: Spectrogon Us Inc. focuses on optical filters, coatings and gratings. Our thin film optical products function from the wavelength regions of 200 nm in the ultraviolet to 20 000 nm in the infrared, and our holographic diffraction gratings function from the very short wavelengths in the UV region to approximately 3 000 nm in the infrared. Our thin film optical product line includes various types of interference filters of narrow bandpass, broad bandpass, long-wave & short-wave pass and neutral density. We also offer instrumentation for medical diagnostics, industrial process control, robotics, environmental measurements, optical communications and various other related analytical instrumentations.