滤光片
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Coating Type Filter
Metallic Coating type Material: BK7 glass and Fused SilicaFlatness: 2λ per 25 mmSurface Quality: 80/50Parallelism: 3 min.Dimension Tolerance:+/-0.2mmCoating: Vacuum-deposited metallic alloyOptical de..
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Colored Glass Filter
Photographing ApparatusMeter and InstrumentOptical DeviceMedical Treatment ApparatusTeaching ApparatusUV AnalyzerFinancial EquipmentAirport LampsMilitary EquipmentTechnological Research InstitutePubli..