Zinc Sulfide Lens

Zinc sulfide is a material commonly used in the MWIR and LWIR bands. It is generally rust-yellow and translucent to visible light. The most common process for producing zinc sulfide is called chemical vapor precipitation.

Zinc sulfide made by hot pressing can be transparent to visible light. Transparent zinc sulfide can be used to fabricate multispectral windows and lenses from visible to LWIR wavelengths.