Optical bi-convex lens,bk7 glass,AR Coated,2mm,5mm,8mm,18mm,20mm
Basic Info
Model No.: SPL
Product Description
Optical Glass Bi convex lens
Bi-convex lens is manufactured with an identical convex surface on both sides of the lens
Bi-convex lenses have positive focal lengths and form both real and virtual images.
Structure | Bi convex lens |
Substrate Material | BK7/K9 |
Diameters Available | 2mm,5mm,8mm,18mm,20mm |
Diameter Tolerance | +0.00/-0.10 mm |
Surface Quality | 40-20 Scratch-Dig(general) 10-5 to 80-50 is availble |
Surface Flatness | 1/20 lambda to 3lambda |
Surface Irregularity | λ/4 |
Thickness tolerance | +0/-0.1mm |
Focal length tolerance | +/-1% |
Clear Aperture | >90% of Diameter |
Chamfer | 0.05-0.5mmx45degree,according to customer’s needs. |
Centeration | 3 arcmin |
Coating | AR,Mgf2 is on request,R<0.25% Visible wavelength,laser wavelength |
Product Categories : Spherical Lens > Bi Convex Lenses
