|
A bandpass filter has a transmission band surrounded by
two blocking bands that allow only a portion of the spectrum
to pass. These filters have broad spectral bandwidths in
either the ultraviolet, visible, or infrared spectrums.
The nearly black filters absorb visible radiation. They
are perfect for ultraviolet or infrared detection applications.
UV filters are often used to selectively transmit the 254nm
and 365nm mercury lines. IR filters are often used in nightvision
and IR sensing systems.
• UV, VIS, IR Ranges 
• Circular and Square Sizes Available
Specification
| Dimension |
25.4x3mm |
| Dimensional
Tolerances |
+0/-0.2mm |
| Thickness
Tolerances |
±0.2mm |
| wave
m |
Center wavelength: midpoint
between wave 1 and wave 2 where wave 1 and wave
2 are the wavelengths at which the transmittance
is half the maximum or t max /2 |
| FWHM
|
Full Width at Half Max:
the distance between wave1 and wave2 (approx.) |
| þ
|
Density |
| Tg |
Transformation temperature
|
Standard
Products
| |
|
|
|
|
|
| BPF355 |
UV
|
UG-1 |
Black
|
355.000
|
53.000
|
| BPF407 |
VIS
|
BG-12 |
Blue-Violet
|
407.000
|
104.000
|
| BPF470 |
VIS
|
BG-38 |
Blue-Green
|
470.000
|
271.000
|
| BPF520 |
VIS
|
VG-6
|
Green
|
520.000
|
92.000
|
| BPF493 |
VIS
|
BG-18 |
Blue-Green
|
493.000
|
160.000
|
| BPF526 |
VIS
|
VG-9
|
Green
|
526.000
|
53.000
|
|
Filter