Why Chalcogenide Glass Is Replacing Germanium for Modern Infrared Lenses 2026-08-24
Chalcogenide glass is gradually replacing germanium for mass‑produced infrared lenses. Germanium suffers from high cost, supply constraints and thermal drift. With low‑cost molding, good athermal performance and mature coating solutions, chalcogenide glass meets most civilian and industrial optical requirements. Germanium remains essential for high‑end military and long‑range detection, creating a differentiated market layout.
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