Specifications of NBP 3950 Filter
Material: The filter is made of silicon.
Angle of Incidence: The angle is set at 0 degrees.
Coating Requirement: The central wavelength (CWL) is 3950 nm with a tolerance of ±30 nm. The full width at half maximum (FWHM) is 90 nm with a tolerance of ±20 nm. The cut-off range is between 400 nm and 11000 nm.
Peak Transmittance (Tp): The peak transmittance is at least 80%.
Average Transmittance (T%): The average transmittance should not exceed 1%.
Appearance Requirement: The standard size is 60/40, but filters can be customized to different sizes based on customer requirements.
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