Ball lenses are near perfect polished spheres of glass or other transparent materials used to focus light from laser sources into fibers and to couple light from fiber to fiber by matching the N.A.(numerical aperture) of the balls to the fibers.Balls can be machined into drums for higher fiber array pitch and mounting alignment accuracy.
Specifications
Material
BK7 and other optical glass
Diameter Tolerance
+/-0.005mm
Sphericity
+/-0.001mm
Surface Quality
40/20 Scratch/Dig
Flatness
< 2.5Lambda
Part No
Diameter
Dia tolerance(mm)
Sphericity(mm)
Surface Quality
BAL0010
1.0
+/-0.005mm
+/-0.002mm
40/20
BAL0030
3.0
+/-0.005mm
+/-0.002mm
40/20
BAL0040
4.0
+/-0.005mm
+/-0.002mm
40/20
BAL0050
5.0
+/-0.005mm
+/-0.002mm
40/20
