MBP-A48 is a high-throughput visible bandpass / near-infrared cut filter designed to keep your camera’s color channels bright and accurate while aggressively suppressing near-infrared (near-infrared) leakage. Transmission ramps up through the blue edge and quickly reaches a strong visible plateau, delivering ~90–95% through most of the ≈ 470–690 nm region. After the red edge, the spectrum drops hard: transmission falls rapidly beyond ≈ 700 nm, reaching ~1% (and below) by roughly the ≈ 770–800 nm range and staying strongly attenuated through much of the near-infrared. The practical result is clean, true-color visible imaging with near-infrared contamination sharply reduced—especially helpful for machine vision, inspection, and any system using sensors that remain sensitive beyond 700 nm.
Key advantages
High visible throughput – ~90–95% transmission across the main visible band keeps images bright and color fidelity strong.
Strong near-infrared blocking (beyond ≈ 700 nm) – suppresses near-infrared leakage that can wash out contrast, distort colors, or confuse algorithms.
Steep red-edge transition – a fast drop after the visible band improves separation between the visible channels and near-infrared.
Better color stability on infrared-sensitive sensors – reduces the “mystery glow” problem where near-infrared sneaks into red-channel response.
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 cameras – maintain accurate visible contrast while cutting near-infrared that can reduce edge clarity or cause false features.
Industrial inspection – improve consistency under mixed lighting (especially where near-infrared-rich sources or hot objects are present).
Color imaging with monochrome sensors + Bayer filters – reduce near-infrared-driven color errors (reddish haze, lifted blacks).
Robotics vision stacks – stabilize perception when environments include sunlight, halogen, or high near-infrared ambient components.
Optical systems needing “true visible only” behavior – prevent near-infrared from contaminating measurements and appearance.
Need prototypes fast or production volumes soon? MBP-A48 can be coated, diced, and shipped to your exact specifications quickly — and because KUPO can custom-make optical filters, we can tune the cut-on/cut-off edge, slope steepness, substrate, thickness, and angle-of-incidence targets to match your camera and illumination.