665.85-1 OD6 Ultra Narrow Bandpass



665.85-1 OD6 Ultra Narrow Bandpass


Ultra Narrow filters bring new levels of performance to filters with very narrow bandwidth responses. Typically fully blocked to OD4 or OD6 and < 3 nm wide at FWHM, Alluxa Ultra Narrow Filters are uniquely steep and accurate. All Alluxa Ultra Narrow filters are fabricated with a proprietary durable, hard coating process. Even very narrow ( < 0.5 nm at FWHM ) Ultra Narrow filters typically have transmission values > 90%.


Item Number 7052
Angle of Incidence 0 Degrees
Center Wavelength 665.85 nm Nominal
FWHM < 1.2 nm
Transmission Band(s) 665.85 nm > 90% T Absolute
Blocking Level OD6
Blocking Range(s)* OD6: 550 to 657 nm, 674 to 850 nm; OD5: 500 to 550 nm, 850 to 900 nm; OD4: 375 to 500 nm, 900 to 950 nm; OD3: 950 to 1000 nm
Filter Design Multi-Cavity
Substrate Type Borofloat®
Dimensions 50.4 mm Diameter
Filter Thickness 2.0 mm
Assembly Type Anodized Aluminum Ring
Assembly Thickness 3.5 mm
*Auxiliary blocking typical based on the displayed spectrum.
†For filters with less than 1nm bandwidth, measurement limitations may result in slight transmission variation. Please contact us for more information.

Availability: On backorder - Please contact us for manufacturing time


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