Colored Glass Absorptive Filters

Colored glass absorptive filters are a kind of absorptive-type optical filter that functions by absorbing light within the rejected wavelength range. Each filter is composed of glass doped with metal oxides or other dyes, which impart unique absorption characteristics to the material. When light passes through the filter, the rejected wavelengths are absorbed, while others are transmitted. This selective absorption allows engineers and researchers to tailor the spectral characteristics of the transmitted light with exceptional precision. Manufacturers engineer the composition and thickness of the glass, as well as the concentration and distribution of colorants, to achieve the desired spectral properties. 

The main features of Colored glass absorptive filters include cost-friendliness, being Insensitive to the Angle of the incident(AOI) of light, and high chemical resistance and no polarization effect as the dye is impregnated throughout the filter. Having the advantage of isolating a broad range of wavelengths, colored glass absorptive filters do an excellent job in applications requiring the blocking of short wavelengths and transmission of longer wavelengths.

Hangzhou Shalom EO offers colored glass absorptive filters with outstanding spectral selection precisions, high durabilities, and stabilities reliable under various conditions and for manifold applications. Our colored glass filter substrates are manufactured using glass materials sourced from Chinese suppliers that are identical to those supplied by SCHOTT or HOYA.

Please note that while our filters offer exceptional performance, it's important to consider their application limitations. Glass filters, in particular, might not be optimal for high power applications. We advise considering your specific requirements, including the wavelength range, operating conditions, and the intensity of incoming light, before making a purchase. For personalized guidance, our team is readily available to assist you. Feel free to reach out to us for expert consultancy and recommendations