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4.0mm Diameter x 5.0mm Length, N-BK7 Drum Lens

Diameter (mm):
4.00
Substrate:
N-BK7
Type:
Drum Lens
Coating:
Uncoated
Diameter Tolerance (μm):
+0/-50
Index of Refraction nd:
1.517
Length (mm):
5.00
Length Tolerance (μm):
±3
Radius R (mm):
2.50
Radius Tolerance (μm):
+0/-1.5
Surface Quality:
40-20
Wavelength Range (nm):
350 - 2200
RoHS:

Product Family Description

  • Easier to Mount and Handle Than Standard Ball Lenses

Drum lenses are glass spheres, ground down axially to provide a mounting surface. The ground circumference D simplifies handling issues typically associated with ball lenses. Ideal for optical transmission in fiber communications. Type B Drum lenses have a polished plano-surface for direct fiber contact and perform as elongated PCX lenses.

Technical Information

D Radius R Length Length L2 Stock No.
Type A Drum Lenses
2mm 1.25mm 2.5mm 1.5mm #45-548
#45-739
#45-836
#45-663
#45-743
2.4mm 1.5mm 3mm 1.8mm #45-549
#45-837
#45-664
#45-744
3.2mm 2mm 4mm 2.4mm #45-550
#45-741
#45-838
#45-665
#45-745
4mm 2.5mm 5mm 3mm #45-551
#45-839
#45-742
#45-666
Type B Half-Drum Lenses
2mm 1.25mm 2mm 1.5mm #46-524
#46-528
2.4mm 1.5mm 2.4mm 1.8mm #46-525
#46-529
3.2mm 2mm 3.2mm 2.4mm #46-526
#46-530
4mm 2.5mm 4mm 3mm #46-527
#46-531

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