491_574 ULTRA Dualband Dichroic Beamsplitter

ULTRA Series dualband dichroic filter with 491 nm and 574 nm (± 3.0 nm) cut-on wavelengths, steep edge transitions, greater than 93% average transmittance from 497 nm to 527 nm and 582 nm to 700 nm, and greater than 95% average reflectance from 390 nm to 485 nm and 539 nm to 566 nm. This polychroic 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 ULTRA Series longpass dichroic beamsplitters are designed for use with our fluorescence excitation and emission filters to optimize 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.