Marta Terry,Watts Rodney Royston,Phillips Antony Leighton,Fritz Bernard,Cox James Allen
申请号：
US201615555762
公开号：
US2018045563(A1)
申请日:
2016.03.03
申请国别(地区):
美国
年份:
2018
代理人:
摘要：
Embodiments relate generally to systems and methods for filtering unwanted wavelengths from an IR detector. In some embodiments, it may be desired to remove or reduce the wavelengths absorbed by water, to reduce the effects of water on the detection of the target gas. In some embodiments, a filter glass may be used in the IR detector, wherein the filter glass comprises one or more materials that contain hydroxyls in their molecular structure, and wherein the spectral absorption properties of the filter glass are operable to at least reduce wavelengths of light absorbed by water from the optical, thereby reducing the IR detector's cross sensitivity to water.
