Spectral transmittance requirements.  The green lines are the straight-line fits.  The annotations on the plot are defined below:

  1.  λS= 380nm.   λS is the straight-line fit intersection with the wavelength axis for T values between 10% and 80% (on the short wavelength side).
  2.  λL= 648nm.
     λ
    L is the straight-line fit intersection with the wavelength axis for T values between 90% and 20% (on the long wavelength side).
  3.  λS= 20nm.
  4.  λL= 25nm.
  5. Minimum ∆PB: 225nm. ∆PB is the spectral width of the pass band.
  6. T > 80% min. @400-420nm.
  7. T > 85% min. @420-600nm, with the average T >90% in this pass band.
  8. T < 5% @ 685nm.
  9. T < 3% @700nm.
  10. Average T < 1% between 750-1100nm.
  11. Maximum T <3% between 750-1100nm.
  12. Average T < 1% between 300-380nm.
  13. Maximum T <3% between 300-380nm.
  14. Incident angle: 0 degree.