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Products / Optics / Optical Filters / Longpass Filters
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

High Performance Fluorescence Dichroic Filters

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  • Improved Flatness, Transmitted Wavefront, and Surface Quality
  • Ideal for Fluorescence Microscopy or High Magnification Imaging Applications
  • Most Popular Cut-On Wavelengths of Fluorescence and Longpass Dichroic Filters
  • Standard Fluorescence Dichroic Filters are also available
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Our TECHSPEC® High Performance Fluorescence Dichroic Filters feature the same broad, flat transmission and reflection ranges as our popular TECHSPEC® Fluorescence Dichroic Filters, but have improved physical parameters. Special attention to surface flatness, transmitted wavefront, and surface quality have resulted in our highest level of precision yet on a filter. These rectangular filters fit into most common Nikon, Zeiss, and Olympus fluorescence microscopes. High Performance Fluorescence Dichroic Filters are a perfect complement to our TECHSPEC® Fluorescence Bandpass Filters. For specific wavelength or size requirements, numerous custom options are available.

The TECHSPEC® Dichroic Filters (sometimes referred to as dichroic plate beamsplitters or dichroic mirrors) feature broad, flat transmission and reflection ranges with an ultra-steep slope between them.  These attributes make them ideal for fluorescence imaging or spectral sorting applications, including DNA sequencing and polymerase chain reaction (PCR) diagnostic instruments.

Technical Information

Filter Type Transmitted Wavefront (RMS) Surface Quality Surface Flatness
(P-V)		 R(avg) T(avg)
HP Dichroic λ/10 40-20 λ/2 >98% >90%
Fluorescence Dichroics 1λ 60-40 - >98% >90%
Dichroic Longpass λ/4 40-20 - >97% >85%
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