Tools

Spec faster with data-driven selection tools.

Curve Compare

Overlay any filter’s transmission curve.

Open Curve Compare

BN450 Narrow Indigo Bandpass Filter

Narrow Indigo Bandpass Filter for machine-vision imaging — passes 435-465nm and blocks out-of-band light for repeatable contrast on the line.

Overview [ 01 ]

Narrow Indigo Bandpass Filter

Recommended alternative — BN470 →
Specifications [ 02 ]
Useful range435-465nm
Wavelength bandVisible
Center wavelength446nm
FWHM45nm
Min peak transmission≥90%
Tolerance+/- 10nm
Surface quality40/20
Mount & Size [ 03 ]
25.4® C-Mount
mm

Enter your lens part number to get the right filter size.

nmT %
11000.40
10900.32
10800.27
10700.24
10600.26
10500.29
10400.27
10300.20
10200.17
10100.22
10000.28
9900.12
9800.04
9700.02
9600.06
9500.03
9400.03
9300.04
9200.02
9100.01
9000.02
8900.00
8800.18
8700.30
nmT %
8600.17
8500.12
8400.19
8300.37
8200.25
8100.15
8000.22
7900.24
7800.16
7700.20
7600.23
7500.18
7400.14
7300.15
7200.22
7100.22
7000.24
6900.27
6800.23
6700.23
6600.24
6500.15
6400.16
6300.30
nmT %
6200.15
6100.20
6000.17
5900.11
5800.16
5700.26
5600.29
5500.46
5400.12
5300.11
5200.17
5100.21
5000.32
4900.15
4804.90
47065.19
46090.58
45090.50
44089.67
43041.67
4200.29
4100.14
4000.07
3900.07
nmT %
3800.01
3700.00
3600.00
3500.00