... composed of maximum transmissivity (TM), wavelength of the peak (λM ) , front-cut-off wavelength,behind-cut-off wavelenght,and half ... by (λ2-λ1). Front(behind)-cut-off wavelength is corresponding to the wavelength ofzerotransmissivity.But there are a few types ... they are determined by the tranmissivity of the certain wavelength.Technical IndexesNO.TypeMaximumTransmissivity(TM/λnm)Behind Cut-off(T/λ ...