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Schneider Kreuznach’s neutral density filters attenuate light by absorption. By careful control of the thickness of the filter material there is a wide range of filters with different attenuation levels available. The transmission variations over the visible wavelength range are very small to avoid effects on color balance.

In imaging applications ND filters are used to adjust the intensity to an appropriate level to avoid camera overexposure. Using a filter instead of stopping down the iris of the lens leaves unaffected other imaging parameters such as depth of field and diffraction limitations.

 
Key Features

Low reflections

Wide range of attenuation levels up to 1:1,000,000

Combine filters to individual levels by stacking

Applications

Machine Vision and other imaging applications

Scientific & research measurement

Technical Specifications 1) 
 
Filter Type 101 102 103 106 110
Wavelength
range
vsisible vsisible vsisible vsisible vsisible
Optical
density
0.3 0.6 0.9 1.8 3.0
Transmission 2) ± 10 nm ± 10 nm ± 10 nm ± 10 nm ± 10 nm
Surface 3) 5/2 x 0.16 5/2 x 0.16 5/2 x 0.16 5/2 x 0.16 5/2 x 0.16
Wavefront
distortion 4)
1 λ 1 λ 1 λ 1 λ 1 λ
Parallelism 1 arc minute 1 arc minute 1 arc minute 1 arc minute 1 arc minute
Diameter
tolerance
+ 0 - 0.3 mm + 0 - 0.3 mm + 0 - 0.3 mm + 0 - 0.3 mm + 0 - 0.3 mm
Thickness 2.0 ± 0.1 mm 2.3 ± 0.1 mm 1.65 ± 0.1 mm 1.8 ± 0.1 mm 2.15 ± 0.1 mm

1)
Specifications for unmounted and uncoated versions
2) Average over 400-700 nm
3) Surface specification according to ISO 10110, quality usually similar to
MIL 80-50 scratch-dig or better
4) Per 30 mm at 633 nm

 

 

 

 

 

 

Print version
(pdf: 170 kB)  

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    Order Instructions Ix - Type - Coating - Mount - Size
 
 

   
IF mounted filter
IFG unmounted filter
Type 101, 102, 103, 106, 110, 113, 120
Coating no coating, E, MRC
Mount SN 1 for standard threaded mount (IF only)
Size for IF: thread of the mount
for IFG: diameter in mm
       

  Call us for
  OEM versions

Example:

IFG - 103 - 30
(unmounted 103 filter with 30 mm diameter)

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FON :  +49 671 601-490 ....... FAX : +49 671 601-286
E-mail : industrie@schneiderkreuznach.com
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