Product Name: High Quality IR Germanium Infrared Lens (Ge Lens) in Swir Model NO.: D5~D300mm Coating: Ar Customized: Customized Certification: RoHS, ISO9001 Lenses Color: Black Material: CaF2, Ge, Lif, Mgf2, Si, Germanium Shape: Cylindrical Shaped Lens Transmittance: >95% Type: Convex Lens Usage: Optical Trademark: ICC Origin: Qinhuangdao HS Code: 9001909090 Product Description Optical Ge window:Why use a Ge window? GermaniumisahighindexmaterialthatisusedtomanufactureAttenuatedTotalreflection(ATR)prismsforspectroscopy.Itsrefractiveindexissuchthatgermaniummakesaneffectivenatural50%beamsplitterwithouttheneedforcoatings.Germanium(Ge)OpticalComponentsareusedinmanyInfrared(IR)applicationsorsystems,includingthermalimaging,spectroscopy,orwithmonochromaticlightsourcessuchasquantumcascadelasers.German(Ge)OpticalComponentsareOpticalComponentsdesignedforhighperformanceintheInfrared(IR)spectrumwithouttheuseofInfrared(IR)anti-reflectioncoatings.TheKnoopHardnessofgermanium(780)isapproximatelytwicethatofmagnesiumfluoride,makingitidealforinfraredapplicationsrequiringruggedoptics.Germaniumissubjecttothermalrunaway,meaningthatthetransmissiondecreasesastemperatureincreases.Assuch,germaniumwindowsshouldbeusedattemperaturesbelow100°C. Germanium'shighdensity(5.33g/cm3)shouldbeconsideredwhendesigningforweight-sensitivesystems. Windowsaretypicallyavailabeinavarietyofsizes,contactusforavailability.SpecificationsSubstrateGermanium(Ge)DiameterTolerance(mm)0ClearAperture(%)90Thickness(mm)0.5-1.5ThicknessTolerance(mm)0.1SurfaceQuality60-40SurfaceAccuracy1/10@10.6μmDensity(g/cm3)5.33KnoopHardness(kg/mm2)780Coating8-12μmWavelengthRange(μm)2.0-16.0μmDamageThreshold0.5J/cm2(10.6µm,100ns,1Hz,Ø0.478mm)Coating CurveAR/AR@8-12 MICRONAR-DLC@8-14MICRonQuality Control ProcessCompany InformationCompany summary: Qinhuangdao Intrinsic crystal technology co.,ltdDate created: 2008 years Employees: 140workers plant Size(sq.m): 15,000Company type: private Trademark: ICC Annual sales: 8-10$MillionD-U-N-S number:53-098-3523 Certificates: ISO9001/14001/18001 import/export status: yesIndustry: crystal material and precision optics Tax.ID: 91130301678536714DBusiness DescriptionICC is focused on crystal material growth, precision optics fabrication, and coating service to the world market.growth material: NO.1 for CaF2/BaF2/MgF2/LiF, leading supplier for silicon.Precision optics: windows, spherical lenses, prism, UV-IRopticsCoating service: 6sets coating machines by IAD technology to make mirror, filter, beam splitter, polarizertesting devices: ZyGo, AFM, FTIR microscope, 5sec goniomenter, reflective & transmission eccentric instrumentBusiness advantageCrystal material of CaF2, BaF2,MgF2, LiF, andSiliconPlano optics and IR/UV lenses sets size for D3.0-300mm.We can supply free charges samples and build inventory for repeated or large orders