게르마늄 광학 연마기: 생산 준비 완료 IR 렌즈를 위한 마지막 단계
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 […]
게르마늄 광학 연마기: 생산 준비 완료 IR 렌즈를 위한 마지막 단계 자세히보기"