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Bandpass Filters

Transmitting a Precise Wavelength Range
 


Looking for high performance bandpass filters? Our bandpass filters are designed to transmit a precisely defined range of wavelengths, making them ideal for a wide range of applications such as spectroscopy or bioanalysis.

 

 

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. Schneider-Kreuznach filters are designed to eliminate unwanted wavelengths through a precisely defined structure of very thin layers. This technique achieves transmittances averaging over 95% and very steep slopes.

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. Bandpass filters are mainly used to eliminate interfering wavelengths. This significantly improves the image quality.

KEY FEATURES OF OUR BANDPASS FILTERS


  • Average Transmission 95 %: Achieve an impressive average transmission rate of 95 % for optimal light throughput.
  • Steep slopes: Take advantage of steep slopes that allow efficient isolation of specific wavelengths.
  • Wavelength Tolerance +/- 1 %: Experience exceptional accuracy with a wavelength tolerance of +/- 1 %, ensuring precise results.
  • Deep Blocking / High Optical Density: Our bandpass filters offer deep blocking and high optical density, effectively minimizing unwanted light leakage.

 

   

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

Applications & Markets of Bandpass filters


Spectroscopy

Spectroscopy
 

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

 

Illumination

LED and Laser illumination

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

 

Mounts for Bandpass filters

C-Mount filters: perfect fit for vision systems

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 C-Mount option. So that filters can go in any C-Mount based mechanics in vision systems.

Another popular application, C-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 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 filters: unmatched flexibility and robust performance

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 filters: precision and stability

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 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

 

 

Product highlights




Bandpass - IF BP 540-80 HT

Schneider-Kreuznach Bandpass Filter BP 540-80 HT


BP 540-80 HT is an interference filter with steep edges and extremely high transmission. The greenish filter is mainly used to filter out interfering light and thus increase the efficiency of measuring devices.  The filter is popular in applications such as 3D measurements, monitoring in food production or also in the field of robotics. Depending on the light source used, it significantly increases the accuracy here.

Request filter


Bandpass - BP 465-70 HT

Schneider-Kreuznach Bandpass Filter BP 465-70 HT


The strengths of the BP 465-70 HT filter are in industrial and medical applications. The standardized manufacturing process ensures consistent quality: One filter is like another! The filters are ideally suited for applications with lasers of 465 nm wavelength, as the bandwidth optimally absorbs a thermally induced migration of the laser.

 

Request filter


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

 

Benefits of Schneider-Kreuznach

Tradition meets Innovation: over 110 years of Optical Manufacturing Experience

Ever since the foundation in 1913 our staff have been perfecting our knowledge and technologies to bring you the best products in optics. Our manufacturing facilities in Bad Kreuznach, Germany, guarantee outstanding quality – Made in Germany. We continuously invest in our state-of-the-art machinery and in the education and training of our staff. Select your perfect filter from our large portfolio of optical filters. 

If you need a customized solution, we are your partner from the kick-off to the Project completion. Our extensive experience and in-depth knowledge of a wide range of applications enables us to provide you with solutions that are perfectly tailored to your needs. 

As a family owned company, we are passionate and committed to our customers and their success. You can expect long-term relationships based on trust and shared goals with us.

Custom Optical Filters for maximum Flexibility

We design and manufacture both the mechanics and the coatings of our filters at Schneider-Kreuznach. This enables us to produce customized optical filters that meet your exact requirements and guarantee the highest quality standards.

Improve the performance and accuracy of your machines by using our optical filters. Reduce annoying reflections, minimize unwanted wavelengths, and increase the efficiency of your processes. Our filters are the key to the smooth and efficient operation of your industrial systems. They are durable and robust, ensuring long-term use. 

Contact us to find the right solution for you.

Highest Quality and Reliability: our Filters put to the Test

Quality and reliability are top priorities at Schneider-Kreuznach. Our filters undergo rigorous quality control to ensure maximum reliability. We use only high quality glass from reputable manufacturers to achieve very low manufacturing tolerances. As a result, our filters are of consistently high quality. Their use allows you to accurately reproduce results, as the filters will perform nearly identically even after years of use.

Our industrial optical filters are rigorously tested to DIN and ISO standards to ensure they meet stringent environmental requirements. These tests evaluate their temperature stability and ability to withstand exposure to harsh chemicals and other environmental stressors. As a result, our filters excel in demanding industrial applications, providing consistent performance and reliability over time.

Precision down to the last detail: Our high vertical integration

We are proud of our technical expertise, which we consistently apply to the production of our lenses and optical filters through our high level of vertical integration at our Bad Kreuznach site. Each of the Schneider-Kreuznach products is manufactured with the utmost care and precision to provide you with the best possible performance and reliability.

Optics 

We demand the highest standards of materials and manufacturing processes to ensure excellent image quality, starting with the production of the optics. Our standards go beyond the production of individual components. We master the entire production process from raw glass to finished filters and are able to process all common types of glass. Our special coating technologies give the optics or lenses the desired optical properties.

Mechanics

We do mechanical manufacturing in-house. We use the latest technologies and machinery to develop robust and durable filters. With our high-end 5-axis CNC milling machines, we have world-class machining capabilities that give us exceptional precision and flexibility. These powerful milling machines allow us to realize complex geometries and sophisticated contours in the mechanical components of our filters while maintaining high reproducibility. Electroplating is performed in-house under strict environmental conditions, allowing us to customize the surface coatings of our products to meet the specific requirements of our customers.

Assembly

Our lenses are assembled in dedicated clean rooms that provide a clean and controlled environment and ensure they are free of contaminants. Our qualified staff with many years of experience and expertise perform precise adjustments and calibrate the optics to the highest quality with the lowest tolerances.

Testing and Quality Assurance

Our test technology and quality assurance reflect our high quality standards. We use state-of-the-art technologies such as interferometers and 3D coordinate measurement technology to test the lenses we manufacture to ensure they meet the highest standards. Our ISO 9001 certified processes, metrology rooms and procedures ensure consistent and reliable production to meet our customers' high expectations.

Different needs, individual solutions: Let us advise you

Our sales and engineering professionals provide customers with a high level of expertise and responsiveness. We understand that the needs of our industrial customers can be diverse and complex. Whether it's technical specifications, the exact application environment, special customizations, or other unique requirements, we take the time to understand each customer's unique needs and provide customized solutions.

Our advice ranges from selecting the right filter to assisting with integration into existing systems. You can count on our experts to provide the best support and find the perfect solution. Our in-depth application knowledge and proven optical expertise enable us to provide customized solutions that combine mechanical robustness, reliability and the highest imaging accuracy.

This is the result of our decades of experience with extremely tight tolerances. We even go so far as to design and build our own manufacturing and metrology systems if there is no equipment available on the market that is accurate enough. Our customers value us not only for our technical expertise, but also for the dedicated and customer-focused advice we provide. We listen. We answer questions and make recommendations. It is important to us that our customers have all the information they need so that they can make the right decisions and achieve the best possible results.

Contact us. We will be happy to advise you.

All products at your glance - our digital product brochure (PDF)

Discover our wide range of high quality lenses, optical filters and accessories in our interactive eBrochure. Find the detailed compilation of all standard products currently available from Schneider-Kreuznach.

Our product brochure gives you a comprehensive overview of our entire product range, including all technical information. Whether you are looking for specific products or want to compare different options, our eBrochure has it all in one place.

Click on the link below to download our product brochure.

Produktuebersicht_2022.jpg

Download brochure (PDF)

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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HEADQUARTERS - Europe

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

 

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

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+49 (0) 671 601 551

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

 

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