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Description

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 filter is ideal for high powers and lacks the strong fluorescence of certain glass filters.

Our dichroic shortpass 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.

450FDS25 - Dichroic Shortpass Filters

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Specifications

Diameter: 12.5 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 374 – 449 nm
Cut-Off Wavelength: 449 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 shortpass filters are used in several applications such as stage lighting and entertainment.

Frequently Asked Questions

What sizes are available for dichroic shortpass filters?
Dichroic shortpass filters are available in standard sizes of 12.5mm and 25mm diameter or 50mm square types. They can also be cut and edged for non-standard sizes to suit your application.
What is the glass substrate used for dichroic shortpass filters?
Dichroic shortpass filters are made of a thin-film dielectric coating on glass. The glass substrate can be made of soda-lime glass, tempered glass, borosilicate glass, or borofloat glass.
What types of dichroic filters are available?
Dichroic filters are available in longpass, shortpass, bandpass, bandblocking, hot and cold mirrors, IR and UV cut-off types. The wavelengths range from 300-1200nm depending on the type.
What are dichroic shortpass filters used for?
Dichroic shortpass filters are used to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. They are commonly used in stage lighting and entertainment.
What is the transmission rate of dichroic shortpass filters?
Dichroic shortpass filters have a transmission rate of T Max=95% typical depending on the type and substrate.

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

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