CWL:Center Wavelength of bandpass filter

Tmax:transmittance of center wavelength

FWHM(full width at half of Tmax): indicates the spectral width at which the signal has fallen to 50% of the peak value.

Cut-on wavelength: the wavelength at which a long pass filter transmits 50%

Cut-off wavelength: the wavelength at which a short pass filter transmits 50%

Angel of Incidence:0 degree.

The passband shifts to blue and becomes worse when a filter is illuminated by a focussed beam or at an angle by a collimated beam.

The blue shift is caused by the reduction of the difference in path length between the transmitted and reflected beams.

Specifications:
substrate:BK7/fused sio2
size:5-50mm
Size Tolerance:-0.2/-0.1mm
spectrum: by customs
clear aperture: >90%
range: 200nm - 1200nm