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Bandpass Filters

Transmit a defined wavelength range

Key features of the Bandpass Filters

  • Average Transmission: 95 %
  • Steep slopes
  • Wavelength tolerance +/- 1 nm
  • Deep blocking / High optical density
Schneider-Kreuznach Bandpass Filters

Bandpass filters for the Industry


Schneider-Kreuznach magnetron sputtered industrial bandpass filters impress with steep slopes and high transmission at stable cut-on and cut-off wavelengths. The very flat surface makes them ideal for high end inspection systems. Schneider-Kreuznach bandpass filters are RoHS conform. Custom sizes are available on request. 

What is the function of a bandpass filter?
An optical bandpass filter is used in the industry to selectively transmit light of a particular range of wavelengths while blocking others. It is designed to allow light with a specific frequency range to pass through while rejecting unwanted light outside that range.

Where is a bandpass filter used?
In industrial applications, optical bandpass filters are used to improve the quality and accuracy of imaging systems such as cameras and microscopes. They can be used to enhance contrast, reduce noise, and eliminate unwanted background light.

 

   

Status
Order name
Wavelength range, 50%-50% [nm]
center Wavelength [nm]
Bandwidth [nm]
Filter mounted
Thread size
Filter glass unmounted
Diameter
Color
Transmission data
Schneider-Kreuznach Bandpass Filter BP 465-70 HT
BP 465-70 HT
standard
BP 465-70 HT
430-500
465
70
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 490 -180 HT
BP 490 -180 HT
on request
BP 490 -180 HT
400-580
490
180
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 515-270 HT
BP 515-270 HT
on request
BP 515-270 HT
380-650
515
270
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 520-280 HT
BP 520-280 HT
on request
BP 520-280 HT
380-660
520
280
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 540-80 HT
BP 540-80 HT
standard
BP 540-80 HT
495-580
540
80
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 540-300 HT
BP 540-300 HT
standard
BP 540-300 HT
390-690
540
300
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter VIS-85 HT
VIS-85 HT
on request
VIS-85 HT
420-640 / 830-870
530 / 850
220 / 40
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 575-170 HT
BP 575-170 HT
standard
BP 575-170 HT
495-660
575
170
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 590-50 HT
BP 590-50 HT
standard
BP 590-50 HT
565-615
590
50
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 590-200 HT
BP 590-200 HT
on request
BP 590-200 HT
495-690
590
200
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 635-50 HT
BP 635-50 HT
standard
BP 635-50 HT
610-660
635
50
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 640-100 HT
BP 640-100 HT
on request
BP 640-100 HT
590-690
640
100
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 660-60 HT
BP 660-60 HT
standard
BP 660-60 HT
630-690
660
60
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 680-100 HT
BP 680-100 HT
on request
BP 680-100 HT
630-730
680
100
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 850-80 HT
BP 850-80 HT
standard
BP 850-80 HT
810-890
850
80
 width=
Data sheet View all
Schneider-Kreuznach Bandpass Filter BP 865-100 HT
BP 865-100 HT
standard
BP 865-100 HT
815-915
865
100
 width=
Data sheet View all

Applications & Markets of Bandpass filters


Spectroscopy

Spectroscopy
 

In spectroscopy, spectral lines are analysed by selectively blocking or transmitting certain wavelengths using bandpass filters.

 

Surveillance

Traffic and surveillance

Traffic and surveillance systems use cameras and image processing to monitor and manage traffic flow and public safety.

 

Medical

Bioanalytics and Medical

Bioanalytical and medical applications isolate wavelengths with bandpass filters to detect biomolecules and cellular structures.
 

Illumination

LED and Laser illumination

Bandpass filters are used in LED and laser lighting to remove unwanted wavelengths or narrow bandwidth.

 

Mounts for Bandpass filter

C-Mount

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

Another popular application, CMT mounts can easyly 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:
Fits in C-Mount cameras
Black Anodized Brass

Applications:
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:
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 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

SN1-Mount was designed for in machine vision industry 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:
Maximum 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 30.5x0.5 32 mm 28 mm 6.5 mm

 

SN1 Filter-Mount

 

 

Product highlights




Bandpass - IF BP 660-60 HT

Longpass Filter LP 365


The bandpass 660-60 is an interference filter that blocks all wavelengths except red light in the wavelength range of 660nm. This eliminates unwanted light. The corresponding LED (660 nm) or laser with a wavelength of 660 nm is optimally visible. The steep edges of the filter allow maximum light output from the LED. Necessary light is not lost. The result is a massive increase in contrast and an improvement in image quality.

Request filter


Environmental Facts of the bandpass filters


Our industrial optical bandpass filters are tested to DIN standards to ensure they meet stringent environmental requirements. These tests check the durability of the bandpass filters, their resistance to temperature changes and their ability to withstand exposure to harsh chemicals and other environmental stressors. This ensures that the bandpass filters are up to the task in demanding industrial applications, providing consistent performance and reliability over time.

Slow temperature cycling

-25°C - +70°C
5 cycles a 12h

DIN ISO 9022-2-14-03 -1
Damp heat, cyclic

-23°C - +40°C
80% - 95% rel. humidity

DIN ISO 9022-2-16-01-1
Adhesive tape test

<<1 s a 25 mm
jerky pull-off

DIN ISO 9211-4-02-03

Chemical resistant

24 h
45 g NaCl in 1 | deionised water | 23 ± 2°C

DIN ISO 9211-4-04-05

Overview of all Schneider-Kreuznach Products

Download our Product Brochure (PDF)

The interactive eBrochure includes all standard Industrial Lenses and Industrial Optical Filters currently available from Schneider-Kreuznach. 
Find all the important information about our products in one place. Search, compare and find the right solution for your needs. DOWNLOAD

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MORE optical filters


Looking for more ways to optimize your industrial image processing? Check out our full range of optical filters designed to meet the needs of a wide range of industrial applications. Our selection of high quality optical filters can help you achieve outstanding results in challenging environments while protecting your lens.

 

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Ringstraße 132
55543 Bad Kreuznach
+49 (0) 671 601 0
cs@schneiderkreuznach.com

 

BUSINESS UNITS

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

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+49 (0) 671 601 551

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cine@schneiderkreuznach.com

 

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info@schneideroptics.com

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info@schneider-asiapacific.com

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cheangv@schneiderkreuznach.com

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