生產(chǎn)加工硅、鍺、CaF2等各類(lèi)紅外透鏡。Specifications:DiameterTolerance:+0.00,-0.15mm(Standard),+0.00,-0.05mm(Precision)ThicknessTolerance:+/-0.1mmFlatness:lambda/2@632.8nmSurface Quality:60-40S/DParaxialFocusLength:+/-2%Centration: 10arcminutesClearAperture: 85%ofdiameterBevel: 0.25x45deg