Band Pass Filter |
Bandpass filters allow a specific wavelength range to pass, and attenuate wavelengths outside of that range. Foreal offers both ultra narrow (<2nm) and ultra broad (>50nm) bandpass filters.
Typical Spectrum:
Typical Specification: |
Dimension |
4mm ~ 80mm, round or square |
Center Wavelength (CWL) |
340nm ~ 1570nm |
Full Width at Half Maximum (FWHM) |
0.3% ~ 0.6% of CWL |
Transmission at CWL |
>70% (Or Custom Design) |
Cut-off Wavelength |
UV – NIR |
Blocking |
>OD4 or OD6 |
Slope (T=1% to T=90%) |
80/50 |