Detailed Product Description
Band-Pass Glass (Optical Glass)
description |
| | This kind of glass only transmits the light within a narrow wavelengh range as shown in figure. Its spectral characteristic is composed of
maximum transmissivity (TM), wavelength of the peak (λM ) , front-cut-off wavelength,behind-cut-off wavelenght,and half-peak width.
The wavelenght corresponding to the half of the maximum transmissivity are (λ2) and (λ1). And the half-peak width is determined by (λ2-λ1). Front(behind)-cut-off wavelength is corresponding to the wavelength ofzerotransmissivity.But there are a few types which transmissivities of the behind-cut-off wavelengthes can't approach to zero,then they are determined by the tranmissivity of the certain wavelength. |
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| Technical Indexes | | NO. | Type
| Maximum
Transmissivity
(TM/λnm) | Behind Cut-off
(T/λnm) | Behind cut-off
(T/λnm | Half-peak
Width
(λ2-λ1)(mm)
| Thickness
(mm) | | 1 | DBT400 | ≥45/400±2 | 0/320±5 | 0/525±5 | ≤90 | 2 | | 2 | DBT435 | ≥48/435±2 | 0/340±5 | ≤2.0/540±5 | ≤100 | 4 | | 3 | DBT470 | ≥40/470±2
| 0/340±5 | 0/600±5 | ≤115 | 4 | | 4 | DBT500 | ≥48/500±2 | 0/380±5 | 0/630±5 | ≤100 | 4 | | 5 | DBT530 | ≥48/530±2 | 0/420±5 | 0/670±5 | ≤95 | 2 | | 6 | DBT545 | ≥48/545±2 | 0/400±5 | 0/720±5 | ≤100 | 4 | | 7 | DBT560 | ≥40/560±2 | 0/435±5 | 0/725±5 | ≤104 | 4 | | 8 | DBT600 | ≥36/600±2 | 0/470±5 | ≤1.0/800±5 | ≤95 | 4 | | 9 | DBT660 | ≥44/660±2
| 0/500±5 | ≤0/800±5 | ≤115 | 4 | | 10 | DBT700 | ≥28/700±2 | ≤0.5/570±5 | ≤0/820±5 | ≤95 | 4 | | 11 | DBT720 | ≥50/720±2 | 0/500±5 | ≤0/900±5 | ≤140 | 4 | | 12 | DBT740 | ≥25/740±2 | 0/650±5 | ≤0/900±5 | ≤85 | 4 |
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