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Band-pass filter glass

Band-pass filter glass referred to as band-pass bandwidth of the glass is a narrow, short and long end of the glass significantly, as shown. The spectral characteristics of the transmittance maximum (TM) and wavelength (¦ËM) position, short-wave cut-off wavelength, long wavelength cut-off wavelength and half width said. The maximum transmission through the glass with more than half the wavelength corresponding to the difference between ¦Ë1 and ¦Ë2 (¦Ë1-¦Ë1) nm called the half-width. Short-wave cut-off wavelength is the peak short-wave side of the transmission wavelength than zero. Long wave length cut-off glass in the long-wave side peak, the wavelength of the transmission ratio equal to zero, and some species, in the long wavelength side glass transmittance of less than zero, places a particular wavelength transmittance said. Band-pass glass to Hanyu Pinyin to name the first letter of DTB, the transmission wavelengths than the maximum value as their number.

Band-pass filter glass Characteristic

Type Thickness
(mm)
Peak
(TM/λMnm)
Short-wave cut-off
(T/λnm)
Long wavelength cut-off
(T/λnm)
Half Bandwidth
(λ2-λ1)(nm)
DBT400 2 ≥45/400±2 0/320±5 0/525±5 ≤90
DBT435 4 ≥48/435±2 0/340±5 ≤2.0/540±5 ≤100
DBT470 4 ≥40/470±2 0/340±5 0/600±5 ≤115
DBT500 4 ≥48/500±2 0/380±5 0/630±5 ≤100
DBT530 2 ≥48/530±2 0/420±5 0/670±5 ≤95
DBT545 4 ≥48/545±2 0/400±5 0/720±5 ≤100
DBT560 4 ≥40/560±2 0/435±5 0/725±5 ≤104
DBT600 4 ≥36/600±2 0/470±5 ≤1.0/800±5 ≤95
DBT660 4 ≥44/660±2 0/500±5 ≤2.0/800±5 ≤115
DBT700 4 ≥28/700±2 ≤0.5/570±5 ≤2.0/820±5 ≤95
DBT720 4 ≥50/720±2 0/500±5 ≤9.0/900±5 ≤140
DBT740 4 ≥25/740±2 0/650±5 ≤4.0/900±5 ≤85

Band-pass filter glass's Spectra

Band-pass filter glass's Spectra

 

 

 
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