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Color Glass Filter

 

    Due to its selective absorption in visible wavelength range, color glass filter will exhibit various color depending the glass type. Optical glass filters are widely used in lasing safety, industrial and environmental measurement.

 

 

Interference Filter

 

    Interference Filters are fabricated by a series of thin layers of various dielectric materials sandwiched by glass substrates. When multi-wavelength light passes through the filter, interference occurs due to the differences in refractive index, resulting in a very high transmittance for certain wavelength while other wavelengths are either reflected or absorbed.

 

 

 



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