Single Band Fluorescence Filter Set

A fluorescence filter set refers to a group of filters optimized and matched for observing a specific fluorophore in fluorescence microscopy.
It typically includes three core components: an excitation filter, an emission filter, and a dichroic mirror.
This filter set selectively illuminates the target fluorophore in the sample and efficiently collects its emitted fluorescence signal while minimizing interference from non-target light.

In fluorescence microscopy, excitation filters, emission filters, and dichroic mirrors are the core components of the fluorescence filter set—each is essential.
The excitation filter selectively allows the wavelength range needed to excite the target fluorophore to pass through, while blocking other unnecessary light from the source, especially longer wavelengths, UV light, and possible autofluorescence.
The emission filter selectively allows the characteristic emission wavelength of the fluorophore to pass through, while blocking residual excitation light. It can be a bandpass or a longpass filter.
The dichroic mirror reflects the shorter-wavelength excitation light at a specific angle and efficiently transmits the longer-wavelength emitted fluorescence.

A bandpass filter is an optical filter that allows only a specific wavelength range of light to pass through with high transmission while strongly blocking light outside this range (the blocking band).
In fluorescence microscopy, most excitation filters are bandpass filters that selectively transmit a narrow band of light from the source that effectively excites the target fluorophore.
It enables effective separation of fluorescence signals and significantly reduces background noise and crosstalk.

In fluorescence microscopy, bandpass and longpass filters are often used together, depending on experimental needs.
Excitation filters are typically bandpass filters that selectively transmit excitation light suitable for the target fluorophore.
Longpass filters can be used in the emission path when fluorescence signals are strong, allowing all wavelengths longer than a specific cutoff to pass.
This helps collect more photons from the fluorophore and increases signal strength.

Yes, we offer both standard fluorescence microscope filter sets and custom fluorescence filters.
Customization is based on the fluorophore, whether multiple fluorescence signals need to be detected, the light source, application requirements, and budget considerations.