Color glass filters are fabricated to selectively transmit a particular range of wavelengths or colors of light. In designing color filters to transmit a particular range, they’re also designed to block other wavelengths (or colors). Jiangxi Ootee Optics Co., Ltd can fabricate custom color filters to allow long wavelengths to pass (longpass), or shortwave lengths (shortpass), or both (bandpass).

Group names and classification

According to the colour, application and the first alphabet of the Chinese Phonetic alphabet of glass, we named and classified the colored optical filter glasses. There are 20 groups and 120 types glasses in this catalogue The glasses can be classified into three categories based on their spectral transmission curves

Cut-off type colored optical filter glass

The glass is named besed on spectral characteristic of which is represented by the wavelength transmission limit. For example, if the transmission limit of glass is 490nm, then it is named as JB490. There are five groupsand 36 types glasses

Selective absorption colored optical filter glass