04 Jan 2011 The FS-LWF-B is a 25.4 mm diameter Long-Pass Filter Set and includes one of each Long-Pass Filter.
Our short and long-wave pass filters have a steep transition between the region of transmission and reflection — much steeper than colored glass filters. Both the short and long-wave pass filters have out-of-band rejection =OD 3 to X-ray (for LWP) and to 1200nm (for SWP). Typical transmission is =80% for long-wave pass and =65% for short-wave pass filters. These filters are available individually and in sets.
Model FS-LWF-B
Type Long Wave Pass Filters
Diameter 25.4 mm (25.4 mm)
Surface Quality 80-50 scratch-dig; F/F per MIL-F-48616 scratch-dig
Effective Index of Refraction ne 1.7
Thickness 2.0 to 7.6 mm
Diameter Tolerance +0/-0.5 mm
Cut-on/Cut-off Wavelength Tolerance ± 7 nm
Humidity Resistance Per MIL-STD-810E, Method 507.3, Procedure III Modified to 7 cycles
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