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Description

Longpass filters are designed to transmit wavelengths higher than the cut on point and reflect all lower wavelengths. These dichroic longpass filters consist of thin-film dielectric coatings on glass with sharp transitions between the transmitted and reflected bands. Having negligible absorption they are suitable for high powers and do not show the strong fluorescence of certain glass filters.

Our dichroic longpass filters are available in a range of wavelengths and are supplied in standard 12.5mm and 25mm diameter or 50mm square types. We are happy to cut and edge filters for non standard sizes to suit your application.

615FDL12 - Dichroic Longpass Filters

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Specifications

Diameter: 12.5 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 615 – 2600 nm
Cut-On Wavelength: 615 nm
Transmission: 95 %
Blocking (Optical Density): OD<1

Got questions about specs? Use the inquiry form to ask.

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Features

  • Available size: Square 7mm-300mm, Diameter 10mm-400mm.
  • Cutting down or edged to special shapes and sizes at short notice.
  • Mounting of diameters and squares.
  • Available in sets, supplied in a wooden storage box for research and laboratory use.

Applications

Dichroic longpass filters are used in several applications such as stage lighting and entertainment.

Frequently Asked Questions

What are the features of dichroic longpass filters?
Dichroic longpass filters have negligible absorption, making them suitable for high powers and not showing strong fluorescence like certain glass filters. They can be cut and edged to special shapes and sizes at short notice, mounted on diameters and squares, and are available in sets supplied in a wooden storage box for research and laboratory use.
What sizes are available for dichroic longpass filters?
Dichroic longpass filters are available in standard 12.5mm and 25mm diameter or 50mm square types. They can also be cut and edged for non-standard sizes to suit your application, with available sizes ranging from square 7mm-300mm and diameter 10mm-400mm.
What are the most frequently requested specifications for dichroic filters?
The most frequently requested specifications for all dichroic filter types include available size, cutting tolerance, glass substrate, dichroic filter types, wavelengths, wavelength accuracy, and transmission.
What are dichroic longpass filters used for?
Dichroic longpass filters are used to transmit wavelengths higher than the cut on point and reflect all lower wavelengths. They are commonly used in stage lighting and entertainment.
What is the transmission rate of dichroic longpass filters?
The transmission rate of dichroic longpass filters varies depending on the type and substrate, but T Max=95% is typical.

Got more questions? Use the inquiry form to ask the supplier directly.

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