Reflective Neutral Density Filter Sets (NBS, NUFS)
   Graph / Diagram

Specifications

 

Material:

BK7 or UV Fused Silica

Surface Polish:

Commercial polish

Surface Quality:

80-50 scratch-dig

Clear Aperture

80 % of central dimension

Size:

+0/-0.020” for 1”diameter

+0/-0.032” for 2”diameter

                  or 2”x2” square

Optical Density Tolerance:

±10% of density @546.1nm

 
 
 
 
 
 
 
 
 
 
 

Part Number for Set

NBS-20S

Part Number for Set

NUFS-20S

NB-20S-0.1

NUF-20S-0.1

NB-20S-0.2

NUF-20S-0.2

NB-20S-0.3

NUF-20S-0.3

NB-20S-0.4

NUF-20S-0.4

NB-20S-0.5

NUF-20S-0.5

NB-20S-0.6

NUF-20S-0.6

NB-20S-1.0

NUF-20S-1.0

NB-20S-2.0

NUF-20S-2.0

NB-20S-3.0

NUF-20S-3.0

NB-20S-4.0

NUF-20S-4.0

 

 

 

 

 

 

 

 

 

 

 

 

 

  • Each set includes 10 filters with hardwood case.
   Picture Image