Products: Solar Blind Filters

Originally designed for the U.S. space program, these unique “very broadband” UV and VUV filters are useful for isolating broad bands of UV or UV-VUV radiation. Our very broadband (VBB) filters offer broadband transmittance properties, averaging 10–20% over the bands specified.

Rejection is approximately 5x10-3  at 500 nm. Care must be taken to avoid contact with the coated surface of this open-faced design, as absorption of the substrate at wavelengths near 120 nm typically prohibits covering and edge sealing. Model 170-VBB is manufactured open-faced but can be supplied covered and edge sealed to protect the coated surface.

Model 120-VBB: Average transmission 10-20% from 120 nm - 250 nm
Model 170-VBB: Average transmission 10-20% from 170 nm - 300 nm

Note: Coatings can be applied to Acton standard substrates, custom substrates, and customer-supplied material (CSM). Contact us at info@actonoptics.com for more details.

 

Solar Blind Filters on Acton Standard Filter Substrates

Wavelength Range Average Transmission 0.5" Part Numbers 1.0" Part Numbers 2.0" Part Numbers
120-250nm 10-20% FB120-VBB-0.5D FB120-VBB-1D FB120-VBB-2D
170-300nm 10-20% FB170-VBB-0.5D FB170-VBB-1D FB170-VBB-2D


NOTE: Substrate material for part number FB120-VBB, UV-Grade MgF2 and Fused Silica for FB170-VBB

120 VBB solar blind filter
170-VBB Solar Blind Filters