DB940 Dual Bandpass Filter Visible + 940nm NIR
Dual Bandpass Filter Visible + 940nm NIR for machine-vision imaging — passes 405-650nm, 925-965nm and blocks out-of-band light for repeatable contrast on the line.
Overview [ 01 ]
Dual Bandpass Filter Visible + 940nm NIR
Specifications [ 02 ]
Useful range405-650nm, 925-965nm
Wavelength bandVisible;IR
FWHM250nm, 50nm
Min peak transmission≥90%
Tolerance+/- 20nm VIS, +/- 10nm NIR
Surface quality40/20
Mount & Size [ 03 ]
25.4® C-Mount
mm
Enter your lens part number to get the right filter size.
| nm | T % |
|---|---|
| 1100 | 19.80 |
| 1090 | 16.31 |
| 1080 | 11.60 |
| 1070 | 8.02 |
| 1060 | 5.89 |
| 1050 | 4.73 |
| 1040 | 4.18 |
| 1030 | 4.06 |
| 1020 | 4.40 |
| 1010 | 5.28 |
| 1000 | 7.16 |
| 990 | 11.00 |
| 980 | 19.00 |
| 970 | 34.36 |
| 960 | 56.26 |
| 950 | 80.51 |
| 940 | 90.89 |
| 930 | 92.55 |
| 920 | 88.16 |
| 910 | 67.83 |
| 900 | 39.25 |
| 890 | 19.64 |
| 880 | 10.78 |
| 870 | 6.01 |
| nm | T % |
|---|---|
| 860 | 3.14 |
| 850 | 1.86 |
| 840 | 1.17 |
| 830 | 0.79 |
| 820 | 0.61 |
| 810 | 0.49 |
| 800 | 0.44 |
| 790 | 0.45 |
| 780 | 0.51 |
| 770 | 0.65 |
| 760 | 0.95 |
| 750 | 1.48 |
| 740 | 2.19 |
| 730 | 2.61 |
| 720 | 2.47 |
| 710 | 2.23 |
| 700 | 2.19 |
| 690 | 2.52 |
| 680 | 3.46 |
| 670 | 5.95 |
| 660 | 10.65 |
| 650 | 23.19 |
| 640 | 46.65 |
| 630 | 75.18 |
| nm | T % |
|---|---|
| 620 | 91.20 |
| 610 | 94.19 |
| 600 | 94.68 |
| 590 | 94.55 |
| 580 | 93.12 |
| 570 | 92.49 |
| 560 | 93.52 |
| 550 | 94.59 |
| 540 | 94.90 |
| 530 | 94.25 |
| 520 | 93.48 |
| 510 | 93.85 |
| 500 | 94.05 |
| 490 | 94.08 |
| 480 | 94.22 |
| 470 | 93.20 |
| 460 | 93.18 |
| 450 | 93.37 |
| 440 | 93.90 |
| 430 | 90.34 |
| 420 | 90.74 |
| 410 | 89.94 |
| 400 | 87.98 |
| 390 | 27.78 |
| nm | T % |
|---|---|
| 380 | 2.29 |
| 370 | 1.39 |
| 360 | 1.47 |
| 350 | 0.29 |