MBP-A34 transmits two bright windows—a blue-to-green band (≈ 410–560 nm) and a deep-red band (≈ 690–770 nm)—while carving out the yellow–orange mid-band so hard it basically falls into the noise floor. Transmission climbs steeply after ~350 nm, reaches ~90% by ~410 nm, and stays ~92–95% through most of the visible passband until it drops sharply past ~560 nm. In the blocked region (roughly ≈ 590–660 nm), transmission is suppressed to only a few percent, then it rockets back up to the ~90%+ plateau again around ≈ 690 nm. Beyond the red window, the spectrum rolls off strongly into the near-infrared, keeping stray near-IR under control while preserving the two intended “signal lanes.” The result is clean two-band throughput: bright blue-green + bright deep-red, with the warm mid-tones neatly excised.
Deep mid-band notch (≈ 590–660 nm) – aggressively suppresses yellow/orange/amber clutter (common in ambient lighting and unwanted reflections).
High transmission dual windows – ~90%+ in the main blue-green and deep-red regions to keep signal bright and exposure times short.
Steep spectral transitions – sharp cut behavior around the notch edges improves channel separation (less cross-talk between “cool” and “warm” content).
Near-IR suppression trend – strong roll-off after the red window helps reduce unwanted near-IR wash in many camera systems.
Hard-oxide durability (ion-assisted deposition optional) – coatings resist heat, humidity, solvents, and repeated cleaning for real-world handling.
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.
Machine-vision dual-illumination setups – run blue/green inspection lighting + deep-red contrast lighting while suppressing warm mid-band reflections from materials and coatings.
Fluorescence / multi-channel imaging – keep blue-green excitation or emission lanes bright while reducing mid-band contamination from broadband sources.
Stage & architectural lighting – create stylized looks that emphasize cool tones + deep reds with reduced amber/yellow spill (cleaner color intent).
Multispectral sensing prototypes – quick separation between “cool” and “deep-red” bands for algorithm development and feature extraction.
Display / optical combiners (selective color routing) – pass desired bands while knocking down the mid-visible region that often creates “muddy” mixtures.
Need prototypes fast or production volumes soon? MBP-A34 filters can be coated, diced, edge-finished, and shipped to your exact specifications quickly and because KUPO can custom-make optical filters, you can tune edge steepness, notch depth, substrates, or thickness to match the real optical stack in your system.