Double-Convex Lenses

Biconvex lenses are used as magnifiers, objectives, condensing systems. Since both surfaces contribute to the power of biconvex lenses, they have shorter focal length than PCX lenses of equal diameter and surface radius. 

Technical Parameters:

Material
BK7, FS, UVFS, CaF2, ZnSe, Si, Ge
Wavelength
350-2000nm/185-2100nm
Dimension Tolerance
+0.0/-0.1mm

Thickness Tolerance
+/-0.1mm
Clear Aperture
>85%
Focal Length Tolerance
5%(Standard)/ 1%(High Precision)
Surface Quality
40/20(Standard)/ 20/10(High Precision)
Centration
<3 arc min
Coating
Upon customers' request