{"id":392,"date":"2025-12-03T11:36:05","date_gmt":"2025-12-03T03:36:05","guid":{"rendered":"https:\/\/www.bihec.com\/knight-optical\/?p=392"},"modified":"2025-12-03T11:36:05","modified_gmt":"2025-12-03T03:36:05","slug":"knight-optical%e5%85%89%e5%ad%a6%e6%9d%90%e6%96%99%ef%bc%8c%e8%93%9d%e5%ae%9d%e7%9f%b3%e5%85%89%e5%ad%a6%e7%aa%97%e5%8f%a3-2","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/knight-optical\/knight-optical%e5%85%89%e5%ad%a6%e6%9d%90%e6%96%99%ef%bc%8c%e8%93%9d%e5%ae%9d%e7%9f%b3%e5%85%89%e5%ad%a6%e7%aa%97%e5%8f%a3-2\/","title":{"rendered":"Knight Optical\u5149\u5b66\u6750\u6599\uff0c\u84dd\u5b9d\u77f3\u5149\u5b66\u7a97\u53e3"},"content":{"rendered":"

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\"\"<\/p>\n

\"\"<\/p>\n

Diameter: +0.0\/-0.2mm
\nThickness: \u00b10.2
\nSurface Quality (S\/D): <60\/40
\nParallelism: <5 arc minute<\/p>\n

Diameter: <5mm to 50mm+
\nDiameter Tolerance: \u00b10.1mm
\nCentre Thickness: up to 30mm
\nCentre Thickness Tolerance: \u00b10.05mm
\nClear Aperture: >90%
\nForm Error @ 633nm: \u03bb\/4
\nCentration tolerance: <1 arc minute
\nSurface Radius Tolerance: <1 fringe
\nLinear Dimension: up to 50mm
\nLinear Tolerance: \u00b10.1mm
\nAngular Tolerance: <5 arc minutes
\nEdge finish: Ground, blacked
\nChamfer: 0.3×0.3 @ 45\u00b0
\nSurface Quality (S\/D): 20-10<\/p>\n

Part No. Diameter (mm) T (mm) Coating
\nWMG1908 19 8.5 Uncoated
\nWMG2500 25 1 Uncoated
\nWMG2501 25 2 Uncoated
\nWMG2502 25 3 Uncoated
\nWMG2503 25 4 Uncoated
\nWMG2504 25 5 Uncoated
\nWMG3200 32 3 Uncoated<\/p>\n

\"\"<\/p>\n

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