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Home > Products > Infrared Optics > BaF2 (Barium Fluoride)

IR Grade BaF2 Lenses

Barium fluoride (BaF2) has an optical transmittance of nearly 90% in the spectral range of 200-9500nm.
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What are the advantages and disadvantages of BaF2 lenses?
BaF2 is cubic crystal system fused 1280 degrees, moisture resistance is better, but the salt spray resistance type is poor. BaF2 can contact water for a long time as a gas chamber or liquid pool infrared window, but can not be applied in the seaside, otherwise it is prone to the phenomenon of shell layer and chaffing.
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