de gb
de gb

NBP 1550-35 HT 
SWIR Filter



Key features

  • Average transmittance >80%
  • Steep slopes
  • Wavelength tolerance +/- 5 nm
  • Deep blocking / High optical density
Request quote
Schneider-Kreuznach SWIR Filter NBP 1550-35 HT

Schneider-Kreuznach SWIR filters are designed for optimal performance in the short-wave infrared range, providing stable center wavelengths and high transmission. Their durable construction ensures reliable results even in challenging industrial or surveillance environments.

The Schneider-Kreuznach NBP 1550-25 HT magnetron sputtered industrial narrow bandpass filter features steep slopes for sophisticated applications that require a sharp transition between high transmission and deep blocking at stable cut-on and cut-off wavelengths. The layers are applied by means of magnetron sputtering, a special coating process. Schneider-Kreuznach narrow bandpass filters are RoHS conform. Custom sizes are available on request.

Downloads

Technical specifications: NBP 1550-35 HT SWIR Filter

TypeStandard
Wavelength range, 50%-50%1532-1568 nm
Center Wavelength1550
Bandwidth35
Transmission90 %
Optical densityOD4
Angle of incident0o +/- 8o
Central Wavelength (CWL)1550 +/- 5nm
Full Width at Half MaFimum (FWHM)35 +/- 5nm
Transmittance1532 - 1568 nm: Tabs > 90%
Blocking< 1530 nm: Tabs < 0.025% 1570 - 2000 nm: Tabs < 0.025%
Wavefront distortion0 >18 - 30 mm: 13/ 1(0.25) 1 0 >30 - 50 mm: 13/ 1(0.30)
Parallelism1J
Glass thickness tolerance1.1 mm +/- 0.08mm

Filter specifications glossary

 

Specification Description
Angle of incidence (AOI) Angle between a ray of light and the surface normal to the surface it strikes
Cut-on wavelength Wavelength at which the transmission of the lower edge rises to 50%
Cut-off wavelength Wavelength at which the transmission of hhe upper edge drops to 50%
Central Wavelength (CWL) Center of the filter’s passband for which it is primarily designed
Full Width at Half Maximum (FWHM) Spectral bandwidth measured at 50% of the peak transmittance
Transmittance Ratio of transmitted light intensity to incident light intensity
Blocking Strong attenuation of light intensity over a specified wavelength range
Wavefront distortion Deviation of the transmitted wavefront from a reference plane
Parallelism Angular deviation between the two main surfaces of the filter
Glass thickness tolerance Permissible deviation from the specified substrate thickness
Wavelength range Spectral region over which the filter is designed to operate
Coating Applied layer(s) defining the filter’s spectral characteristics
Temperature range Recommended operational limits for ambient or device temperature
Glass thickness Nominal thickness of the filter glass
Optical density Attenuation measure defined as −log₁₀ of transmittance
Transmittance average Average light transmission across the specified wavelength range
Wavelength Wavelength range at which the polarizer specification applies
Transmittance, unpolarized light Ratio of transmitted to incident intensity for unpolarized light
Extinction ratio Ratio of transmitted intensity along the polarizer’s pass axis to that along its block axis
Max. size Largest standard dimension for the polarizer film
Temperature range Minimum to maximum temperature for reliable performance
Substrate Base material on which the polarizing film is applied
Thickness Nominal overall thickness of the polarizer film
Info Unless otherwise stated, all dimensions in this data sheet are in mm

 

Picture of the filter

Schneider-Kreuznach SWIR Filter NBP 1550-35 HT



Transmission of the NBP 1550-35 HT Filter


 

Transmission Data

 

Download Excel

Wavelength (nm) Transmission (%)
1520 1.301594
1520.5 0.96774
1521 1.647864
1521.5 1.149955
1522 2.164698
1522.5 2.213082
1523 2.763092
1523.5 2.245248
1524 3.122746
1524.5 3.866285
1525 4.906487
1525.5 5.052314
1526 5.795295
1526.5 6.318895
1527 7.864862
1527.5 8.761881
1528 10.241014
1528.5 12.000776
1529 13.87008
1529.5 15.869024
1530 18.499065
1530.5 21.705469
1531 24.871926
1531.5 28.94834
1532 32.828476
1532.5 37.747984
1533 42.731067
1533.5 47.777312
1534 52.601321
1534.5 58.320056
1535 63.827463
1535.5 68.394721
1536 73.030866
1536.5 77.088037
1537 80.913174
1537.5 83.798277
1538 86.46541
1538.5 88.445375
1539 90.194223
1539.5 91.397625
1540 92.049989
1540.5 92.853589
1541 94.093999
1541.5 94.32021
1542 94.631805
1542.5 94.622961
1543 95.054146
1543.5 94.633927
1544 94.093884
1544.5 93.966769
1545 94.37302
1545.5 94.528252
1546 93.851044
1546.5 93.379283
1547 93.990466
1547.5 93.262266
1548 92.61352
1548.5 92.660532
1549 91.859886
1549.5 91.965762
1550 91.722742
1550.5 91.169589
1551 91.077496
1551.5 91.368385
1552 91.086535
1552.5 90.802538
1553 90.692969
1553.5 91.062659
1554 90.58647
1554.5 91.117458
1555 91.436624
1555.5 90.70876
1556 90.347559
1556.5 89.889096
1557 91.175849
1557.5 91.335117
1558 92.297083
1558.5 92.152732
1559 92.29301
1559.5 91.59464
1560 92.488708
1560.5 91.365631
1561 92.626718
1561.5 91.917955
1562 91.984973
1562.5 91.514625
1563 91.061778
1563.5 90.333092
1564 89.14568
1564.5 88.396423
1565 87.099168
1565.5 85.315866
1566 83.44593
1566.5 80.951628
1567 77.437802
1567.5 75.146944
1568 70.829875
1568.5 66.603482
1569 62.818099
1569.5 57.350182
1570 53.234614
1570.5 48.113533
1571 43.902168
1571.5 39.92234
1572 35.605321
1572.5 32.172471
1573 27.866197
1573.5 24.205356
1574 20.672
1574.5 18.213187
1575 16.286524
1575.5 14.264639
1576 12.365937
1576.5 10.417764
1577 10.129424
1577.5 7.913185
1578 7.295956
1578.5 6.512255
1579 4.628879
1579.5 4.756411
1580 3.990526

 

 

Mounted Industrial Filter [IF]


MountThicknessID
CMT1.1 mm1110179
SH 25.51.1 mm1110180
SH 27.01.1 mm1110181
SN1 30.51.1 mm1110182
SH 34.01.1 mm1110183
SH 35.51.1 mm1110184
SH 37.01.1 mm1110185
SH 39.01.1 mm1110186
SH 40.51.1 mm1110187
SH 43.01.1 mm1110188
SH 46.01.1 mm1110189
SH 49.01.1 mm1110190

Order nomenclature
IF NBP 1550-35 HT [Mount] [Thickness]
Example: IF NBP 1550-35 HT SH 25.5 2
 

Mounts for Industrial Optical Filters

C-Mount

Defined by 1” (25.4mm) diameter and 32 turns per inch pitch, the C-Mount thread is a popular camera mount in machine vision industry. Schneider-Kreuznach offers a C-Mount option for most filters. So filters can go in any C-Mount based mechanics in vision systems.

Another popular application, C-Mounts can easily be used for, is placing a filter in front of the sensor into the camera. The extension of the back flange distance has to be considered for imaging applications.

Key Features of C-Mount Filters:
Fits in C-Mount cameras
Black Anodized Brass

Applications of C-Mount Filters:
To be mounted in C-Mount cameras
Vision Systems based on C-Mount mechanics

Thread Diameter Clear Thickness
Aperture
1'' - 32 25.4 mm 21.1 mm 3.6 mm

 

Filter C-Mount

 

 

SH-Mount

Schneider-Kreuznach offers a variety of mounts with common thread sizes to fit on most camera lens systems. SH-Mount is the standard, when high flexibility is needed. Filters are held by retainer rings. SH-Mounts are extreme robust.

All SH-Mounts have a female and male M-thread, and can be stacked if several filters must be combined.

Key features of SH-Mount Filters:
Stackable
​​​​​Robust
Black Anodized Brass

Applications of SH-Mount Filters:
Mounted on lenses in imaging applications
Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 25.5x0.5 29.5 mm 20.8mm 6.4 mm
M 27.0x0.5 31.0 mm 21.8 mm 6.4 mm
M 35.5x0.5 39.5 mm 29.8 mm 6.4 mm
M 37.0x0.75 41.0 mm 31.8 mm 6.9 mm
M 39.0x0.5 43.0 mm 33.8 mm 6.4 mm
M 40.5x0.5 44.5 mm 35.8 mm 6.4 mm
M 43.0x0.75 47.0 mm 37.8 mm 6.9 mm
M 46.0x0.75 50.0 mm 40.8 mm 6.9 mm
M 49.0x0.75 53.0 mm 43.8 mm 6.9 mm
M 52.0x0.75 56.0 mm 46.8 mm 6.9 mm
M 55.0x0.75 59.0 mm 49.8 mm 6.9 mm
M 58.0x0.75 62.0 mm 52.8 mm 6.9 mm
M 62.0x0.75 66.0 mm 56.8 mm 6.9 mm
M 67.0x0.75 71.0 mm 61.8 mm 6.9 mm

 

SH Filter-Mount

 

SN1-Mount

The SN1-Mount was designed for the in machine vision popular M30.5x0.5 thread. With its high clear aperture, vignetting can be avoided, even for wide angle applications. The filter is glued into the mount, in order to secure it against vibrations when integrated into robots or production lines. It is ideal to be used in automated fabrication.

SN1-Mounts have a male and female M-thread, and can be stacked if several filters must be combined.

Key features SN1-Mount Filters:
Maximum Clear Aperture
No vignetting
Stackable
Robust
Black Anodized Brass

Applications SN1-Mount Filters:
Mounted on lenses in imaging applications
Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 30.5x0.5 32 mm 28 mm 6.5 mm

 

SN1 Filter-Mount

 

SN1-Mount

The SN2-Mount is designed for polarizers and achieves highest possible aperture, avoiding vignetting in machine vision systems. Its unique locking mechanism fixes the correct orientation, even in typical industrial environment. The filters are glued into the mount to secure them against vibrations when integrated into robots or production lines. Ideal for use in automated fabrication.

SN2-Mounts have a female and male M-thread, and can be stacked if several filters must be combined.

Key features:
Rotatable
High clear Aperture
No vignetting
Stackable
Robust
Black Anodized Brass

Applications:
Mounted on lenses in imaging applications
Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 25.5x0.5 27 mm 22.7 mm 7.4 mm
M 27.0x0.5 28.5 mm 23.7 mm 7.4 mm
M 30.5x0.5 32 mm 26.7 mm 7.4 mm
M 35.5 x0.5 37 mm 31.7 mm 7.4 mm
M 37.0x0.75 38.5 mm 32.7 mm 7.4 mm
M 40.5x0.5 42 mm 36.7 mm 7.4 mm
M 43.0x0.75 44.5 mm 37.7 mm 7.4 mm
M 46.0x0.75 47.5 mm 41.7 mm 7.4 mm
M 49.0x0.75 50.5 mm 44.7 mm 7.4 mm

 

SN2 Filter-Mount

DH-Mount

Schneider-Kreuznach offers a variety of mounts for polarizers with common thread sizes to fit on most camera lens systems. The DH-Mount is rotatable to adjust polarization axis in the required orientation. Filters are held by retainer rings.

All DH-Mounts have a female and male M-thread and can be stacked if several filters must be combined.

Key features:
Rotatable
Stackable
Black Anodized Brass

Applications:
Mounted on lenses in imaging applications
Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 25.5x0.5 27 mm 20.8 mm 9.2 mm
M 27.0x0.5 28.5 mm 21.8 mm 9.2 mm
M 30.5x0.5 32 mm 25.8 mm 9.2 mm
M 35.5 x0.5 37 mm 30.8 mm 9.2 mm
M 37.0x0.75 38.5 mm 31.8 mm 9.2 mm
M 40.5x0.5 42 mm 35.8 mm 9.2 mm
M 43.0x0.75 44.5 mm 37.8 mm 9.2 mm
M 46.0x0.75 47.5 mm 40.8 mm 9.2 mm
M 49.0x0.75 50.5 mm 43.8 mm 9.2 mm
M 52.0x0.75 53.5 mm 46.8 mm 9.2 mm
M 55.0x0.75 56.5 mm 49.8 mm 9.2 mm
M 58.0x0.75 59.5 mm 52.8 mm 9.2 mm
M 62.0x0.75 63.5 mm 56.8 mm 9.2 mm
M 67.0x0.75 68.5 mm 61.8 mm 9.2 mm

 

DH Filter-Mount



 

More SWIR Filters


Do you have any questions or comments? Then please contact us. We will get back to you as soon as possible. To help us process your request, please fill out all fields marked with *.

Required
Required
Required
Required
Required
Required
Required
Required

The data will not pass on to third parties. This is about our privacy.

Completely free of charge and without obligation. I am aware that my data/ usage behavior is stored electronically. You can unsubscribe this service at any time in any newsletter, or your consent to the Jos. Schneider Optische Werke GmbH.

HEADQUARTERS - Europe

Jos. Schneider Optische Werke GmbH
Ringstraße 132
55543 Bad Kreuznach | Germany
+49 (0) 671 601 0

 

BUSINESS UNITS

Business Unit Industry
+49 (0) 671 601 205
isales@schneiderkreuznach.com

Business Unit Photo/ Cine
+49 (0) 671 601 551

B+W belongs to the Photo division
photo@schneiderkreuznach.com
cine@schneiderkreuznach.com

 

OFFICES WORLDWIDE

America
+1 800 645 7239 (East Coast)
+1 800 228 1254 (West Coast)

Asia
+86 755 8832 1170

Singapore
+65 9488 0062

Exhibitions & Events

Visit us at any tradeshow or event we attend worldwide! Come with your challenge and let our experts help you find the perfect solution for your apllication.

Newsroom

Stay up-to-date on all the latest news, product releases, and more.

Distribution

Get in touch with our specialist. Find a partner near to you.