MBP-A35 is a dual-bandpass filter that delivers two high-transmission windows: a strong green passband and a second, high-throughput near-infrared passband, while strongly suppressing the red/orange region between them. Transmission rises steeply into the green, reaching ~90%+ around ≈ 545–555 nm, then drops rapidly after ~560 nm into a deep stopband through the visible red. The filter re-opens in the near-infrared, climbing back to ~90–96% from roughly ≈ 820–860 nm (with peak transmission around the mid-840 nm region), then gradually rolls off again toward longer wavelengths. The result is clean spectral “two-lane routing”: green + near-infrared throughput stays bright, while warm-band clutter is heavily reduced.
Key advantages
High green passband (≈ 540–555 nm) – delivers ~90%+ transmission for a bright green channel and efficient exposure.
Deep red suppression (≈ 600–760 nm) – strongly reduces orange/red reflections and ambient warm-light contamination.
High near-infrared passband (≈ 820–860 nm) – achieves ~90–96% transmission for near-infrared illumination and sensing.
Improved channel separation – supports systems that combine green imaging with near-infrared features, with reduced cross-talk from the mid-band.
Hard-oxide durability – ion-assisted coating options resist heat, humidity, solvents, and repeated cleaning.
Flexible formats (KUPO custom-made optical filters) – round, square, or complex blanks from 5 mm to 450 mm, 0.21–3.8 mm thick, on Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG glass.
Typical applications
Machine-vision inspection – pair green structured lighting with near-infrared illumination while suppressing red/orange glare and reflections.
Agriculture / vegetation imaging – pass green plus near-infrared for contrast methods and vegetation-focused sensing workflows.
Industrial contrast enhancement – green for surface detail, near-infrared for ink/adhesives/subsurface contrast, with reduced warm-band interference.
Security and sensing – near-infrared throughput for covert or controlled illumination while retaining a usable visible channel.
Multispectral prototyping – a simple two-band solution without requiring two separate optical paths.
Need prototypes fast or production volumes soon? MBP-A35 can be coated, diced, and shipped to your exact specifications quickly and because KUPO can custom-make optical filters, we can tune band widths, edge steepness, substrate, thickness, and angle-of-incidence targets to match your system.