507.5 Longpass Dichroic Beamsplitter



507.5 Longpass Dichroic Beamsplitter


Longpass dichroic filter with a 507.5 nm (± 3.0 nm) cut-on wavelength, greater than 95% average transmittance from 515 nm to 950 nm, greater than 98% average reflectance from 350 nm to 500 nm, and a steep cut-on edge transition. This dichroic filter is designed for use at a 45 degree angle of incidence (AOI). It is coated on a 1.04 mm fused silica substrate and is 25.2 mm x 35.6 mm (± 0.1 mm) in size. Alluxa longpass dichroic beamsplitters are designed for use with our fluorescence excitation and emission filters to increase fluorescence instrument performance, resulting in bright, high contrast images of target molecules. All Alluxa optical filters are highly durable and hard-coated using our innovative SIRRUS™ plasma deposition process. Contact us for custom sizing.


Item Number 7158
Angle of Incidence 45 Degrees
Cut-On Wavelength 507.5 nm ± 3.0 nm
Transmission Band(s) 515 to 950 nm > 95% T Average
Reflection Band(s) 350 to 500 nm > 98% R Average
Parallelism < 3.0 Arcseconds
Transmitted Wavefront Error < 0.25 Wave RMS @ 632.8nm
Substrate Type Fused Silica
Dimensions 25.2x35.6 mm
Filter Thickness 1.05 mm
Assembly Type Unmounted

Availability: In stock


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