• 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	264 ±1	nm
Bandwidth (FWHM)	19 ±2	nm

Out of Band % Transmission
290 nm	<10-4 %
300 nm	<10-9 %
305 - 750 nm	<1x10-10%
750-1100 nm	<2x10-4 %

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