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Optik-Mechanik-Thermik

Spherical Optics, Achromat Lenses (Doublets and Triplets)

Manufacturing Tolerances

Dimensions from ø1 to ø100 mm as well as rectangular shape

 

Tolerances

Commercial quality

Precision quality

Manufacturing limits

GlassQuality

Nd

+/-0.001

+/-0.0005

Melt controlled

 

Vd

+/-0.8%

+/-0.3%

Melt controlled

Diameter(mm)

+0/-0.10

+0/-0.02

+0/-0.01

Center Thickness(mm)

±0.10

±0.05

±0.01

SAG (mm)

±0.050

±0.025

±0.010

Radius

±2%

±0.5%

±0.025%

Scratch-Dig

80-50 / 60-40

40-20

10-5

Power (fringe)

5 arc min

3 arc min

1arc min

Irregularity (fringe)

L/2

L/4

L/8

Wedge Lens (ETD, mm)

0.05

0.01

Facility controlled

Bevels

Upon requirement

No bevel

Coatings

Upon requirement