FILTER PRODUCTS

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FILTER PRODUCTS

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Bandpass Filters

Teledyne Acton Optics presents our premium VUV/UV Wideband Optical Filters, renowned for their high-quality optical materials and superior performance in various research and industrial applications. Our filters undergo meticulous visual and optical inspection before shipment, ensuring reliability and top-notch performance. Each ...

Specifications

Central Wavelength: 130 nm
Bandwidth (FWHM): 100 nm
Peak Transmittance: 40 %
Available Wavelengths: 30nm, 160nm, 200nm, 250nm, 300nm (up to 320nm available)
Wavelength Tolerance: +/- 10nm
Unlock the full potential of your research and industrial projects with Acton Optics' VUV/UV Broadband Optical Filters. Crafted with top-tier optical materials, our filters guarantee exceptional performance and reliability across various applications. Each filter undergoes rigorous visual and optical inspections, ensuring you receive ...

Specifications

Central Wavelength: 180 nm
Bandwidth (FWHM): 40 nm
Peak Transmittance: 30 %
Manufacturer: Acton Optics
Minimum Peak Transmission:
Discover unparalleled performance with Acton Optics' VUV/UV Narrowband Filters, meticulously crafted from the finest optical materials for diverse research and industrial applications. Each filter undergoes rigorous visual and optical inspections, guaranteeing impeccable quality and reliability. With individual transmittance curves ...

Specifications

Central Wavelength: 122 nm
Bandwidth (FWHM): 10 nm
Peak Transmittance: 5 %
Manufacturer: Acton Optics
Filter Material (Wavelength Range): < 140nm: VUV MgF2 | 140-169nm: VUV CaF2 | 170-320nm: UV Grade Fused Silica
Teledyne Acton Optics introduces Solar Blind Filters, originally designed for the U.S. space program. These unique "very broadband" UV and VUV filters are invaluable for isolating wide bands of UV or UV-VUV radiation. Offering very broadband (VBB) transmittance properties with an average of 10–20% over specified bands, these ...

Specifications

Central Wavelength: 235 nm
Bandwidth (FWHM): 200 nm
Peak Transmittance: 30 %
Average Transmission (170nm - 300nm): 10-20 %
Diameter: 50.8 mm
Teledyne Acton Optics introduces Solar Blind Filters, originally designed for the U.S. space program. These unique "very broadband" UV and VUV filters are invaluable for isolating wide bands of UV or UV-VUV radiation. Offering very broadband (VBB) transmittance properties with an average of 10–20% over specified bands, these ...

Specifications

Central Wavelength: 235 nm
Bandwidth (FWHM): 200 nm
Peak Transmittance: 30 %
Average Transmission (170nm - 300nm): 10-20 %
Diameter: 25.4 mm
Teledyne Acton Optics introduces Solar Blind Filters, originally designed for the U.S. space program. These unique "very broadband" UV and VUV filters are invaluable for isolating wide bands of UV or UV-VUV radiation. Offering very broadband (VBB) transmittance properties with an average of 10–20% over specified bands, these ...

Specifications

Central Wavelength: 235 nm
Bandwidth (FWHM): 200 nm
Peak Transmittance: 30 %
Average Transmission (170nm - 300nm): 10-20 %
Diameter: 12.7 mm
Teledyne Acton Optics introduces Solar Blind Filters, originally designed for the U.S. space program. These unique "very broadband" UV and VUV filters are invaluable for isolating wide bands of UV or UV-VUV radiation. Offering very broadband (VBB) transmittance properties with an average of 10–20% over specified bands, these ...

Specifications

Central Wavelength: 185 nm
Bandwidth (FWHM): 130 nm
Peak Transmittance: 20 %
Average Transmission (120nm - 250nm): 10-20 %
Diameter: 50.8 mm
Teledyne Acton Optics introduces Solar Blind Filters, originally designed for the U.S. space program. These unique "very broadband" UV and VUV filters are invaluable for isolating wide bands of UV or UV-VUV radiation. Offering very broadband (VBB) transmittance properties with an average of 10–20% over specified bands, these ...

Specifications

Central Wavelength: 185 nm
Bandwidth (FWHM): 130 nm
Peak Transmittance: 20 %
Average Transmission (120nm - 250nm): 10-20 %
Diameter: 25.4 mm
The Optical Bandpass Filter is a specialized optical component designed to selectively allow specific wavelengths of light to pass through while reflecting or cutting off others. This capability makes it invaluable across a wide range of applications in clinical medicine, environmental experiments, fluorescence studies, and more. ...

Specifications

Central Wavelength: 193 nm
Bandwidth (FWHM): 10 nm
Peak Transmittance: 10 %
It's about a 3nm dual band designed to drastically reduce the effect of light pollution, the 3nm isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue). It blocks light pollution, maximizes the signal from nebulae, and darkens the sky background. It also blocks artificial light from mercury vapor lamps, high and ...

Specifications

Central Wavelength: 500.7 nm
Bandwidth (FWHM): 3 nm
Peak Transmittance: 90 %
LASERTEC provide high quality 1535nm filters for 1535nm laser range finder modular.  we can provide high transmition with high blocking for this application.

Specifications

Central Wavelength: 1535 nm
Bandwidth (FWHM): 60 nm
Peak Transmittance: 90 %
A band-pass filter or bandpass filter (BPF) is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.

Specifications

Central Wavelength: 300 nm
Bandwidth (FWHM): 2 nm
Peak Transmittance: 95 %
Blocking: 200-1200 nm
Teledyne Acton Optics introduces Solar Blind Filters, originally designed for the U.S. space program. These unique "very broadband" UV and VUV filters are invaluable for isolating wide bands of UV or UV-VUV radiation. Offering very broadband (VBB) transmittance properties with an average of 10–20% over specified bands, these ...

Specifications

Central Wavelength: 185 nm
Bandwidth (FWHM): 130 nm
Peak Transmittance: 20 %
Average Transmission (120nm - 250nm): 10-20 %
Diameter: 12.7 mm
These 193-299nm Standard Bandpass Optical Filters are designed to transmit a specific band of energy in the electromagnetic spectrum. They offer an extensive range of wavelengths from ultraviolet to near-infrared, including the primary laser, mercury, biomedical, and analytical spectral lines.   Andover offers one of ...

Specifications

Central Wavelength: 193 nm
Bandwidth (FWHM): 15 nm
Peak Transmittance: 12 %
Blocking: 1x10-4 avg. X-Ray to FIR
Optical Quality: Commercial
These 500-599nm Standard Bandpass Optical Filters are designed to transmit a well-defined band of energy in the electromagnetic spectrum. These filters are available in a range of wavelengths from the ultraviolet through the near infrared, and they include many of the primary laser, mercury, biomedical, and analytical spectral ...

Specifications

Central Wavelength: 500 nm
Bandwidth (FWHM): 10 nm
Peak Transmittance: 60 %
Diameter Tolerance: +0/-0.25 nm
Surface Quality: 80-50
Andover offers a variant of its standard UV optical bandpass filter that features all coatings on a single external surface and is sealed with a hard-oxide protective coating. These filters are coated on a single UV-Grade Fused Silica or UV Filter Glass substrate.

Specifications

Central Wavelength: 193 nm
Bandwidth (FWHM): 15 nm
Peak Transmittance: 12 %
Diameter Tolerance: +0/-0.25 mm
Surface Quality: 80-50
Our Hard-Coated Narrowband Filters are high-quality optical filters that employ magnetron sputtered, hard-oxide coatings deposited on Borosilicate Glass, providing a steep transition from high, peak transmission to OD4 blocking.   These filters are suitable for high-temperature applications and are available at ...

Specifications

Central Wavelength: 620 nm
Bandwidth (FWHM): 10 nm
Peak Transmittance: 90 %
Thickness: 5.0 mm
Minimum Clear Aperture: 21 mm
In addition to our standard Bandpass Filters for Biochemical Analytical and Fluorescence, Sherlan Optics also supplies other Bandpass filters from 400nm to 1100nm, and FWHM from 4nm to 100nm, Blocking >OD4 from X-ray to NIR. Sherlan Optics is able to offer the kinds of Band-pass Filter for your design.

Specifications

Central Wavelength: 532 nm
Bandwidth (FWHM): 30 nm
Peak Transmittance: 90 %
Material: BK7
Wavelength Range: 300-1100 nm
Knight Optical’s complete range of cost effective bandpass dichroic filters offer superior transmission, reflection and absorption characteristics.   Dichroic bandpass filters are designed to transmit highly over a specific limited bandwidth while reflecting all other wavelengths. Their design allowed them to isolate the ...

Specifications

Central Wavelength: 520 nm
Bandwidth (FWHM): 30 nm
Peak Transmittance: 95 %
Length: 50.0 mm
Width: 50.0 mm
We have many types of standard filters in stock, can send samples to you for test very fast.  Filters are used for selecting or filtrating the specific wave band, they are widely used in optical instrument. industrial measurement, environment protection and many other applications. We can provide short filter, long pass ...

Specifications

Central Wavelength: 475 nm
Bandwidth (FWHM): 35 nm
Peak Transmittance: 95 %
Size: stock size is 80*80mm*1.1mm,can cut to your size

Bandpass Filters: Precision Light Control for Advanced Optical Applications

Bandpass filters are essential components in optical systems, designed to transmit a specific range of wavelengths while blocking others. This selective transmission is crucial in applications requiring precise spectral control, such as fluorescence microscopy, spectroscopy, and various imaging techniques.

Understanding Bandpass Filters

A bandpass filter allows light within a defined wavelength range to pass through while attenuating wavelengths outside this range. Key specifications include:

  • Center Wavelength (CWL): The midpoint of the filter's transmission band.

  • Full Width at Half Maximum (FWHM): The bandwidth over which the filter transmits light at half its maximum intensity.

  • Transmission Efficiency: The percentage of light transmitted at the CWL.

  • Blocking Range: The range of wavelengths the filter effectively attenuates.

These parameters determine the filter's suitability for specific applications, ensuring that only the desired wavelengths reach the detector or sample.

Applications Across Industries

Bandpass filters are utilized in various fields:

  • Fluorescence Microscopy: Isolating excitation and emission wavelengths to enhance image contrast.

  • Spectroscopy: Selecting specific spectral lines for analysis in chemical and environmental studies.

  • Medical Diagnostics: Enhancing signal-to-noise ratios in imaging systems.

  • Industrial Automation: Filtering specific wavelengths in machine vision systems for quality control.

  • Telecommunications: Managing wavelength channels in fiber-optic communication networks.

Design Considerations

When selecting a bandpass filter, consider:

  • Spectral Requirements: Ensure the CWL and FWHM align with the application's needs.

  • Environmental Stability: Choose filters with coatings that maintain performance under varying temperatures and humidity.

  • Angle of Incidence: Be aware that tilting the filter can shift the CWL, which may be advantageous or detrimental depending on the application.

Manufacturers offer a range of filters with varying specifications to meet these considerations, enabling customization for specific system requirements.

Advancements in Bandpass Filter Technology

Recent developments have led to filters with higher transmission efficiencies and better blocking capabilities. Hard-coated filters, for example, offer improved durability and environmental resistance. Additionally, tunable filters are emerging, allowing dynamic adjustment of the CWL for applications requiring flexibility.

Conclusion

Bandpass filters are vital for applications requiring precise spectral selection. Their ability to isolate specific wavelength ranges enhances the performance of optical systems across various industries. As technology advances, the capabilities and applications of bandpass filters continue to expand, solidifying their role in modern optics.

Did You know?

Optical Bandpass filters (BP Filters) are used in spectral photometry, clinical diagnostics, chemical analysis, colourimetry, astronomy, and numerous applications where spectral isolation is required. A Band-pass Filter transmits light only within a defined spectral band ranging from less than one to many nanometers wide and can be made by combining a Long pass and a Short Pass filter. Examples of bandpass filters are the Lyot filter and the Fabry-Pérot interferometer. The Dutch Open Telescope and Swedish Solar Telescope are examples where Lyot and Fabry-Pérot filters are being used.