BP470 Blue Bandpass Filter

About Midwest Optical Systems Inc. (MidOpt)

• Type: Filters
• Filter Category: Bandpass Filter
• Applications: Aerospace, Industrial, Military, Scientific Research
• Useful Range: 425-495nm
• FWHM: 85nm
• Tolerance: +/-10nm
• Peak Transmission: ≥90%
• Surface Quality: 40/20
• Compatible LED: 450nm, 465nm, 470nm

The MidOpt BP470 Blue Bandpass Filter enhances the viewing of subjects illuminated by blue LED lighting and any ultraviolet (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 with short focal length, wide angle lenses. The BP470 is also frequently used in 3D measurement applications. MidOpt Bandpass Filters have a broad, Gaussian passband to mimic and accommodate the entire output of the most common LED wavelengths, are double-side polished for exceptional parallelism and optical flatness and are anti-reflection (AR) coated to limit glare and minimize reflection loss.