BN840 Near-IR Bandpass Filter
Near-IR Bandpass Filter for machine-vision imaging — passes 820–856nm and blocks out-of-band light for repeatable contrast on the line.
Overview [ 01 ]
Near-IR Bandpass Filter
Specifications [ 02 ]
Useful range820–856nm
Center wavelength844nm
FWHM36nm
Min peak transmission≥83%
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 | 0.03 |
| 1090 | 0.03 |
| 1080 | 0.02 |
| 1070 | 0.03 |
| 1060 | 0.02 |
| 1050 | 0.03 |
| 1040 | 0.01 |
| 1030 | 0.03 |
| 1020 | 0.01 |
| 1010 | 0.01 |
| 1000 | 0.02 |
| 990 | 0.01 |
| 980 | 0.02 |
| 970 | 0.03 |
| 960 | 0.02 |
| 950 | 0.00 |
| 940 | 0.03 |
| 930 | 0.01 |
| 920 | 0.06 |
| 910 | 0.02 |
| 900 | 0.09 |
| 890 | 0.29 |
| 880 | 0.73 |
| 870 | 3.91 |
| nm | T % |
|---|---|
| 860 | 26.99 |
| 850 | 73.69 |
| 840 | 82.03 |
| 830 | 68.09 |
| 820 | 45.47 |
| 810 | 23.51 |
| 800 | 9.26 |
| 790 | 2.97 |
| 780 | 1.00 |
| 770 | 0.39 |
| 760 | 0.14 |
| 750 | 0.06 |
| 740 | 0.04 |
| 730 | 0.01 |
| 720 | 0.01 |
| 710 | 0.01 |
| 700 | 0.00 |
| 690 | 0.01 |
| 680 | 0.00 |
| 670 | 0.00 |
| 660 | 0.00 |
| 650 | 0.00 |
| 640 | 0.00 |
| 630 | 0.00 |
| nm | T % |
|---|---|
| 620 | 0.00 |
| 610 | 0.00 |
| 600 | 0.00 |
| 590 | 0.00 |
| 580 | 0.00 |
| 570 | 0.00 |
| 560 | 0.00 |
| 550 | 0.00 |
| 540 | 0.00 |
| 530 | 0.00 |
| 520 | 0.00 |
| 510 | 0.00 |
| 500 | 0.00 |
| 490 | 0.00 |
| 480 | 0.00 |
| 470 | 0.00 |
| 460 | 0.00 |
| 450 | 0.00 |
| 440 | 0.00 |
| 430 | 0.00 |
| 420 | 0.00 |
| 410 | 0.00 |
| 400 | 0.00 |
| 390 | 0.00 |
| nm | T % |
|---|---|
| 380 | 0.00 |
| 370 | 0.00 |
| 360 | 0.00 |
| 350 | 0.00 |