What are optical components? Optical components are used to modify the state of the light through various means including reflecting, filtering, focusing or polarizing. Optical components are accommodated into unlimited number of applications like imaging, interferometer or microscopy for great industrial purposes ranging from life sciences to measurements and testing. These are usually designed either by the usage of certain substrates or anti-reflection coatings to enhance performance in the designated visible, ultraviolet or wavelength ranges or infrared wavelengths. Cleaning procedure of these components The delicate nature of the optical components demands cleaning, and it should be a proper cleaning pattern as it enhances its performance and its lifetime. Since these are used every day, they definitely come in contact with contaminants like skin oils, dust and water. They increase the light scattering off the surface of the optical components and absorb radiation which can create spots on its surface and in turn making a permanent damage.