Changchun Realpoo Photoelectric Co., Ltd.  

Product Name: Factory Offer Optical Glass Concave Lens Model NO.: OGCAL0410 Coating: HC Customized: Customized Lenses Color: Clear Material: Optical Glass Shape: Biconvex Transmittance: >95% Type: Convex Lens Usage: Lighting, Medical, Optical, Photography Dimmension Tolerance: -0.1 Surface Quality: 40/20;60/40 Surface Precison: 1/4 Lambda Trademark: Realpoo Transport Package: Protective Packing Specification: 16*16*16cm Origin: Cn HS Code: 9001909090 Product Description Optical SphericalConcave LensThesespherical concavelensesare used in laser scanners, spectroscopy, dye lasers, acousto-optics, optical processors and other similar applications. They are the best for circularization of diode laser outputsSpecificationsspherical concave lensMaterial: bk7,k9,sapphire,znse,cag2, Fused Silica(JGS1,JGS2,JGS3),Diameter Tolerance: +0.0, -0.02mmCenter Thickness Tolerance: ±0.1mmSurface Quality: 10-5 tp 80/50 scratch and digCentration: ±1 arc minutesSurface Figure: lambda/4 @632.8nmClear Aperture: >90% of diameterBevel: 0.25x45degCoating: Upon requirement,AR coating,IR coating and so on.MaterialBK7orFusedSilica or optical glassDesignWavelength632.8nmDesignIndex:optical glassmarerialBK7n=1.5147±0.0005FusedSilican=1.45702±0.00005SurfaceFigurex:λ/2;y:2λDiameterTolerance+0.00,-0.15mmThicknessTolerance±0.2mmParaxialFocalLength±2%Centration<3arcminutesClearAperture>90%SurfaceQuality60-40scratchanddigProtectiveBevel0.25mmx45°