Multi BandPass Filters

What is Multi-Band Pass Filter?

A multi-bandpass filter is a specialized type of filter with distinct advantages over traditional single-bandpass filters. It incorporates multiple bandpass regions within a single filter, enabling selective transmission of light in specific wavelength ranges while blocking other wavelengths. This unique characteristic allows a single multi-bandpass filter to achieve effects that would otherwise require the stacking of multiple ordinary filters, resulting in a more compact design and cost reduction. As a result, multi-bandpass filters find widespread applications in diverse fields such as spectral analysis, optical imaging, fluorescence microscopy, and multiphoton microscopy. Noni Optics offers a comprehensive range of multi-bandpass filters, including dual-wavelength, dual-bandpass, triple-bandpass, quadruple-bandpass, five-bandpass, and fluorescent multi-bandpass filters, among others.

ITEM NoAngle of incidence PassbandCut-off bandDiaphragm SizeSubstrateMembrane material
29.8*29.8*(2.0±0.05)FS 7980 0FTa2O5/SiO2
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Know-how about Multi-Band Pass Filters

Why Noni Multi-Band Pass Filters?

Noni Optics offers high-quality multi-bandpass filters that boast attributes such as a high cut-off, ensuring efficient light blocking, and high transmission for excellent light throughput. They also exhibit remarkable wavelength stability and fast, durable film layers, ensuring long-lasting performance.Additionally, we can provide custom multi-bandpass filters service to meet specific requirements regarding wavelength range, bandwidth, transmittance, and other optical parameters.

With our proficient team, we tackle complex multi-bandpass filter designs, achieving top-notch levels of high transmittance and steep edge slopes. Our expertise in custom multi-bandpass filter preparation leverages cutting-edge technology and imported equipment, including PVD methods like electron beam thermal evaporation, ion beam assisted deposition, magnetron sputtering, and ion beam sputtering. These techniques enable precise film deposition on substrates, ensuring desired optical properties in each bandpass region and effectively controlling chromatic aberration within different wavelength ranges.

At Noni Optics, we stand at the forefront of multi-bandpass filter innovation, catering to diverse optical requirements with unwavering quality and expertise.


How to Choose: A Multi bandpass filter VS Combination of multiple bandpass filters?


The distinction between using multiple bandpass filters and a single multi-bandpass filter lies in the following aspects:

Multiple Bandpass Filters (Used in Combination):

  • Strong Customization: Stacking filters allows for precise customization of bandpass width, wavelength selection, and transmittance control.
  • Flexibility: Enables the combination and transmission of different wavelengths to meet specific optical application needs.
  • Wide Bandpass Range: Suited for multi-wavelength optical systems with a broad bandpass range.
  • More Complex Designs: Requires precise optical design and assembly due to increased system complexity.

Single Multi-Bandpass Filter:

  • Integrated Design: Realizes the function of multiple bandpasses in one component, reducing complexity and the number of components.
  • Optimized Performance: Design optimization leads to superior optical performance, including steeper edge slopes and higher transmission.
  • Ease of Assembly: Simplifies assembly compared to stacking multiple filters.
  • Smaller Size: Especially beneficial in space-critical applications due to its compact form.

Ultimately, the choice between using multiple bandpass filters or a single multi-bandpass filter depends on specific optical system requirements, performance needs, space constraints, and manufacturing costs. For simpler applications, a single multi-bandpass filter proves more convenient and economical, while complex optical systems may benefit from stacking multiple bandpass filters for enhanced customization and flexibility.


Multi-Bandpass Filters Applications


Multi-bandpass filters offer various key benefits and applications in optical systems:

Benefits of multi-bandpass filters:

  • Versatility: They selectively transmit light in multiple wavelength ranges, providing flexibility in complex optical systems.
  • Precise Spectral Selection: Multiple spectral selections can be achieved in a single filter, saving space and reducing complexity.
  • Multi-Optical Component Analysis: In spectral analysis, they extract signals of multiple optical components simultaneously, enhancing sample analysis.
  • Multi-Wavelength Imaging: Ideal for optical and fluorescence microscopy, enabling simultaneous imaging of multiple markers.


Applications of multi-bandpass filters:

  1. Spectral Analysis: Selectively transmit multiple optical signals for analyzing specific spectral components of samples.
  2. Fluorescence Microscopy: Transmit fluorescent signals of specific wavelengths to obtain clear microscope images.
  3. Multiphoton Microscopy: Enable high-resolution three-dimensional imaging by selectively transmitting multiple laser wavelengths.
  4. Optical Sensors: Measure and detect different physical parameters by selectively transmitting specific wavelength light signals
  5. Optical Communication: Achieve multiplexing and demultiplexing in optical fiber communication through multi-wavelength transmission.
  6. Space-Borne Remote Sensing: Selectively receive ground reflection signals of different wavelengths for environmental monitoring and resource investigation.
  7. Spectral Imaging: Obtain sample image information at different wavelengths in spectral imaging systems.
  8. Biomedical Imaging: Use specific wavelength light for diagnostic and therapeutic applications in medical imaging.
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FAQ, Frequently Asked Questions

Some important information you might want to know.

  • Do you offer standard optic components (Shelf Products) ?
    No, we don’t sell shelf products. We offer customization service according to your requirements for specific projects or brands equivalent.
  • What substrates do you use for custom optical components?
    Our most frequently used substrates are Zinc Selenide (ZnSe), Zinc Sulfide (ZnS), Silicon, Germanium (Ge), Copper, Aluminum, Mo, PMMA, Chalcogenide Glasses, etc.
  • Can you help to customize according to samples we offered?
    We highly recommend producing according to specific drawings. Since there are lots of indexes which can not be obtained by measuring samples, such as requirements of material.
  • What's your MOQ for customized projects?
    We set very low MOQ for customization projects. But of course, price will be quoted according to the quantity to cover our production cost.
  • How to protect my personal information and our technical information?
    Don’t worry, we will sign the NDA with all our customers if needed.
  • What shipping methods are available?
    We commonly use UPS, FedEx, DHL, TNT, SF, EMS etc. We also accept your own appointed forwarder.
  • What's the lead time for sampling, for mass production?
    For customization projects, sampling lead time will be 1 to 2 weeks. For mass production, 1 to 2 months for orders with quantity 1000 to 2000 pieces.
  • Can you offer all the Certificates required by our customs and our company?
    Every product that leaves the factory has been carefully tested. We would like to offer you all the certificates required by your side. Such as:
    • Raw material certificate and technical drawing
    • RoHS Report of substrate
    • Inspection report (data) of 3D optical profiler, surface flatness etc.
    All products delivered by us will be carefully cleaned and packaged.

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*Your privacy will be 100% confidential at Noni.