FILTER PRODUCTS

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IR Reflecting Filters
Thin-Films Research Inc
We produce several types of Heat Reflecting Filters using Durable multi-layer Dielectric coatings. By adding these filters directly to the beam path, the temperature can be reduced by effectively reflecting IR radiation while transmitting more than 85% of the visible spectrum. Some of these filters also provide the added benefit ...
  • Diameter: 10 mm
  • Thickness: 1 mm
  • Transmission Wavelength Range: 400 - 700 nm
  • Cut-Off Wavelength: 350 nm
  • Transmission: 85 %
  • ...
Data Sheet
Excitation lens for Fluorescent filter set
  • Diameter: 25 mm
  • Thickness: 1 mm
  • Transmission Wavelength Range: 443 - 514 nm
  • Cut-Off Wavelength: 515 nm
  • Transmission: 93 %
  • ...
Data Sheet
IR Cut Filter
Silicon Valley Optics Technology
Svotek IR Cut Filter for scientific and industrial applications. 
  • Diameter: 25 mm
  • Thickness: 5 mm
  • Transmission Wavelength Range: 390 - 650 nm
  • Cut-Off Wavelength: 650 nm
  • Transmission: 95 %
  • ...
Data Sheet
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...
  • Diameter: 0 mm
  • Thickness: 1.1 mm
  • Transmission Wavelength Range: 390 - 580 nm
  • Cut-Off Wavelength: 580 nm
  • Transmission: 95 %
  • ...
Data Sheet
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...
  • Diameter: 12.5 mm
  • Thickness: 1.1 mm
  • Transmission Wavelength Range: 374 - 449 nm
  • Cut-Off Wavelength: 449 nm
  • Transmission: 95 %
  • ...
Data Sheet
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...
  • Diameter: 12.5 mm
  • Thickness: 1.1 mm
  • Transmission Wavelength Range: 370 - 563 nm
  • Cut-Off Wavelength: 563 nm
  • Transmission: 95 %
  • ...
Data Sheet
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...
  • Diameter: 0 mm
  • Thickness: 1.1 mm
  • Transmission Wavelength Range: 373 - 490 nm
  • Cut-Off Wavelength: 490 nm
  • Transmission: 95 %
  • ...
Data Sheet
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...
  • Diameter: 25.0 mm
  • Thickness: 1.1 mm
  • Transmission Wavelength Range: 370 - 500 nm
  • Cut-Off Wavelength: 500 nm
  • Transmission: 95 %
  • ...
Data Sheet
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...
  • Diameter: 12.5 mm
  • Thickness: 1.1 mm
  • Transmission Wavelength Range: 385 - 573 nm
  • Cut-Off Wavelength: 573 nm
  • Transmission: 95 %
  • ...
Data Sheet
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible ...
  • Diameter: 25.0 mm
  • Thickness: 1.1 mm
  • Transmission Wavelength Range: 375 - 560 nm
  • Cut-Off Wavelength: 560 nm
  • Transmission: 95 %
  • ...
Data Sheet
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible ...
  • Diameter: 0.0 mm
  • Thickness: 1.1 mm
  • Transmission Wavelength Range: 350 - 460 nm
  • Cut-Off Wavelength: 460 nm
  • Transmission: 95 %
  • ...
Data Sheet
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...
  • Diameter: 12.5 mm
  • Thickness: 1.1 mm
  • Transmission Wavelength Range: 380 - 730 nm
  • Cut-Off Wavelength: 730 nm
  • Transmission: 95 %
  • ...
Data Sheet

Did You know?

Optical filters selectively transmit light in a particular range of wavelengths. When designed to pass short wavelengths only, they are referred to as short-pass filters. Short-pass filters are widely used in optical instruments for applications such as fluorescence microscopy and Raman spectroscopy. They may also be used in operations like stage lighting and entertainment. Short-pass filters are commonly paired with long-pass filters to create custom band-pass filtering. This allows for the transmission of a specific wavelength range that is tailored for customer requirements.