Reflective Neutral Density Filters (NB, NUF)
   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

 

 

 

 

 

 

 

 

 

 

Optical

Density

T (%)

Part No

1.0” diameter

2.0” diameter

2.0” square

BK7

UV FS

BK7

UV FS

BK7

UV FS

0.04

91.20

NB-10-0.04

NUF-10-0.04

NB-20-0.04

NUF-20-0.04

NB-20S-0.04

NUF-20S-0.04

0.1

79.43

NB-10-0.1

NUF-10-0.1

NB-20-0.1

NUF-20-0.1

NB-20S-0.1

NUF-20S-0.1

0.2

63.10

NB-10-0.2

NUF-10-0.2

NB-20-0.2

NUF-20-0.2

NB-20S-0.2

NUF-20S-0.2

0.3

50.12

NB-10-0.3

NUF-10-0.3

NB-20-0.3

NUF-20-0.3

NB-20S-0.3

NUF-20S-0.3

0.4

39.81

NB-10-0.4

NUF-10-0.4

NB-20-0.4

NUF-20-0.4

NB-20S-0.4

NUF-20S-0.4

0.5

31.62

NB-10-0.5

NUF-10-0.5

NB-20-0.5

NUF-20-0.5

NB-20S-0.5

NUF-20S-0.5

0.6

25.12

NB-10-0.6

NUF-10-0.6

NB-20-0.6

NUF-20-0.6

NB-20S-0.6

NUF-20S-0.6

0.7

19.95

NB-10-0.7

NUF-10-0.7

NB-20-0.7

NUF-20-0.7

NB-20S-0.7

NUF-20S-0.7

0.8

15.85

NB-10-0.8

NUF-10-0.8

NB-20-0.8

NUF-20-0.8

NB-20S-0.8

NUF-20S-0.8

0.9

12.59

NB-10-0.9

NUF-10-0.9

NB-20-0.9

NUF-20-0.9

NB-20S-0.9

NUF-20S-0.9

1.0

10.0

NB-10-1.0

NUF-10-1.0

NB-20-1.0

NUF-20-1.0

NB-20S-1.0

NUF-20S-1.0

1.3

5.01

NB-10-1.3

NUF-10-1.3

NB-20-1.3

NUF-20-1.3

NB-20S-1.3

NUF-20S-1.3

1.5

3.16

NB-10-1.5

NUF-10-1.5

NB-20-1.5

NUF-20-1.5

NB-20S-1.5

NUF-20S-1.5

2.0

1.00

NB-10-2.0

NUF-10-2.0

NB-20-2.0

NUF-20-2.0

NB-20S-2.0

NUF-20S-2.0

2.5

0.32

NB-10-2.5

NUF-10-2.5

NB-20-2.5

NUF-20-2.5

NB-20S-2.5

NUF-20S-2.5

3.0

0.10

NB-10-3.0

NUF-10-3.0

NB-20-3.0

NUF-20-3.0

NB-20S-3.0

NUF-20S-3.0

4.0

0.01

NB-10-4.0

NUF-10-4.0

NB-20-4.0

NUF-20-4.0

NB-20S-4.0

NUF-20S-4.0

   Picture Image