• Optimized for use with RbCsTe photocathode PMTs and ICCDsv*.
• Blocks PMT exposure to direct sunlight to fewer than 10 photons per second.
• Spectral characteristics insensitive to the angle of incident light.

UV Transmission*
l peak	262 ±1	nm
Bandwidth (FWHM)	19 ±2	nm

Out of Band % Transmission
290 nm	<6x1.0E-9
300 nm	<2x1.0E-9
300 - 760 nm	<1.0E-10
760-1100 nm	<2x1.0E-4

Dimensions
Part #	Diameter	Aperture	Thickness
SB-BF-1	25.4 mm	20 mm	20mm
SB-BF-2	50.8 mm	42 mm	20mm