光学玻璃: 胶合消色差正镜(Cemented Negative Achromat) 
 
 

Specifications



Diameter Surface
Quality
 Diameter
Tolerance
 Center Thickness
Tolerance
 Edge Thickness
Tolerance
 Centering
Tolerance
3.00 - 5.00 40-20 +0/-0.05 +/-0.2 Reference 3-5arc mins
5.01 - 25.40 40-20 +0/-0.1 +/-0.2 Reference 3-5arc mins
25.41 - 40.00 60-40 +0/-0.1 +/-0.2 Reference 3-5arc mins
40.01 - 75.00 80-50 +0/-0.1 +/-0.2 Reference 3-5arc mins

Products

P/n Dia.
(mm)		 Dia. Tol
(mm)		 EFL
(mm)		 EFL. Tol
(mm)		 Coating
30649 6.25 0 25
30666 12.5 0 75
　

 
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