332-22 OD6 ULTRA Bandpass Filter



332-22 OD6 ULTRA Bandpass Filter


ULTRA Series bandpass filter with a 332 nm (± 1.0 nm) center wavelength (CWL), a 22 nm full-width at half-maximum (FWHM), and OD5/OD6 out-of-band blocking from 250 nm to 450 nm (with additional blocking to 850 nm). This bandpass filter has exceptionally steep edges and greater than 85% average transmission from 324 nm to 340 nm. It is coated on a 2 mm thick fused silica substrate and mounted in a standard 25 mm (+0/-0.1 mm) diameter, 3.5 mm (± 0.1 mm) thick anodized aluminum ring. Alluxa ULTRA Series fluorescence filters are designed to optimize fluorescence instrument performance, resulting in bright, high contrast images of target molecules. ULTRA Series filters provide better overall performance than our standard fluorescence filters by using a combination of tight wavelength control, ultra-steep edges, deeper blocking, and the industry's highest transmission levels. All Alluxa optical filters are highly durable and hard-coated using our innovative SIRRUS™ plasma deposition process. Contact us for custom sizing.


Item Number 7679
Angle of Incidence 0 Degrees
Center Wavelength 332 nm ± 1.0 nm
FWHM 22 mm Nominal
Transmission Band(s) 324 to 340 nm > 85% T Average
Blocking Level OD6
Blocking Range(s)* OD6: 250 to 311 nm, 354 to 400 nm; OD5: 400 to 450 nm; OD4: 450 to 850 nm
Parallelism < 3.0 Arcseconds
Transmitted Wavefront Error < 0.25 Wave RMS @ 632.8nm
Substrate Type Fused Silica
Dimensions 25.0 mm Diameter
Filter Thickness 2.0 mm
Assembly Type Anodized Aluminum Ring
Assembly Thickness 3.5 mm
Main Fluorophore(s) Alexa Fluor® 350

Availability: On backorder - Please contact us for manufacturing time