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R&T for Optical Components
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Ranges and Tolerances for Optical Components

Following are our current manufacturing standards and tolerances for commercial and precision-quality optics, and our current manufacturing limits for standard flat or spherical lenses, and for prisms:

 

Commercial Quality

Precision Quality

Manufacturing Limits

Glass Quality (nd)

0.001

0.005

Melt controlled

Diameter (mm)

+0.00/-0.10

+0.000/- 0.025  

+ 0.000 / - 0.010

Center Thickness (mm)

0.150      

0.050

0.010

Sag (mm)

0.050

0.025

0.010

Radius                       

0.2%

0.1%

0.025%

Power Irregularity (fringe)      

5 2

3 0.5

1 0.1

Wedge Lens

(TIM, mm)         

0.050

0.010

0.005

Prism Angles

(TIA, arc min)        

3

0.5

0.1

Bevels (max face width mm @ 45)    

1.0

0.5

No Bevel

Scratch Dig

80 50

60 40

10 5

AR Coating

(Ave R)         

MgF2, R<1.5%

BBAR, R<0.5%

Custom Design

 
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