#00AEEF BP470 Blue Bandpass Filter
BP470 filters enhance viewing of subjects illuminated by blue LED lighting and any UV- excited blue fluorescence emissions (430-500nm). Its broad bandwidth and high peak (T ≥90%) transmission results in significantly brighter, higher contrast images. For most machine vision UV fluorescence applications, use of a BP470 filter is absolutely necessary. The StablEdge design prevents unwanted interference from lighting employed for UV excitation (365-405nm) even when the filter is used in conjunction with short focal length, wide angle lenses. BP470 is also frequently used in 3D measurement applications.
StablEDGE- Useful Range : 425-495nm
- FWHM : 85nm
- Tolerance : +/- 10nm
- Peak Transmission : ≥90%
- Surface Quality : 40/20
- Compatible LED : 450nm, 465nm, 470nm
Before Filter
Midopt
After Filter
Midopt
85% of all industrial UV fluorescence applications involve imaging a blue fluorescence. Use of a BP470 or similar blue bandpass filter is almost mandatory in order to obtain adequate contrast.
BP470 Transmission Data (Typical)
| wavelength (nm) |
transmission (%) |
|---|
| wavelength (nm) |
transmission (%) |
|---|