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Drum Lens

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.

 

Specifications

Material

BK7

Nd=1.517

LaSFN9

Nd=1.850

Diameter Tolerance

+/-0.0025

Length Tolerance

±0.01mm

Surface Quality

40-20

Size D x L (mm)

2.0x2.5

2.4x3.0

3.2x4.0

4.0x5.0

 

 

 

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