Germanium Optics Polishing Machine: The Final Step to Production-Ready IR Lenses
A germanium lens can pass every upstream check — correct radius, right thickness, clean edges — and still get rejected at final inspection. The reason is almost always surface finish. If the polished surface doesn’t reach Ra < 5 nm, IR transmission drops at 8–12 μm, and for thermal imaging applications, that means a rejected […]
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