Colored optical filter CF

glassabsorption

Color glass filters provide an economical way of filtering light for use in various applications. Color glass is melted using many colorants with different concentrations to achieve selective absorption in the visible light range. There are several types of optical filters: Longpass – transmits only long wavelengths Shortpass – transmits only short wavelengths Bandpass – transmits a band of wavelengths, absorbing both longer and shorter wavelengths Altechna offers a wide variety of color glass filters, including Schott and Hoya materials, and their equivalents. Custom shapes and dimensions are available on request – contact us for more information. Material Schott glass or equivalent Surface quality, S-D 60-40 Surface flatness, P-V <λ @ 632.8 nm*