G32502 Dual-Band Filter

High-clarity green filter (485 – 510 nm, > 90 % T) with < 1 % leakage outside the band, angle-stable edges, and an optional NIR alignment window.

  • Green passband: 485 – 510 nm, > 90 % T
  • UV/blue block: < 1 % T @ 380 – 465 nm
  • Red block: < 1 % T @ 546 – 678 nm
  • NIR peek: 725 – 755 nm, ~80 % T @ 738 nm (optional)
  • Angle stability: Edge shift ≤ ±3 nm for ±5° AOI
  • Construction: Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick
  • Custom options: AOI tuning, ripple smoothing, rapid prototypes
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G32502 isolates the eye-sensitive 485 – 510 nm band while crushing stray UV/blue, yellow-red, and most near-IR. Transmission rises past 90 % near 485 nm, holds a flat ~90 % plateau through ~510 nm, and falls below one percent before 546 nm. The coating then hugs the noise floor until a controlled secondary rise at 725 – 755 nm enables alignment beacons or dual-band imaging without extra optics.

Densified, ion-assisted layers limit edge shift to ±3 nm for AOI swings of ±5°, and shrug off heat, humidity, solvents, and repeated wipe-downs—ideal for production lines and field rigs.

KUPO supplies Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG in any outline—from 5 mm chips to 450 mm plates—at thicknesses of 0.21 – 3.8 mm, and can ship prototypes in about two weeks.

Typical uses: FITC-style fluorescence excitation, green-LED machine vision, laser-phosphor projection engines, multispectral vegetation indexing (green + NIR), and AR waveguides needing bright green injection without UV/IR heat.

$88,888.00

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Description

G32502 opens a crisp, eye-sensitive green window while keeping stray photons on both sides out of the signal path. Transmission rises past 90 % at roughly 485 nm, holds a ~90 % plateau through about 510 nm, and falls below 1 % before 546 nm. The curve then hugs the noise floor until a secondary rise appears; between ~725 nm and 755 nm it peaks near 80 %, handy for alignment beacons or dual-band imaging, before tapering toward the near-IR.

Key advantages

  • High-contrast green passband – >90 % transmission across 485 – 510 nm maximises luminance and colour fidelity.

  • Deep out-of-band blocking – < 1 % T from 380 – 465 nm and 546 – 678 nm shields sensors from UV/blue noise and red flare.

  • Optional NIR peek – Controlled window at 725 – 755 nm enables alignment markers or NIR reference channels without extra optics.

  • Angle-stable design – Densified, ion-assisted layers keep edge shift within ±3 nm for AOI swings of ±5 °.

  • Hard-oxide durability – Coating withstands heat, humidity, solvents, and repeated cleaning.

Typical applications

  • Fluorescence microscopy & cytometry – Deliver FITC-style excitation while dumping autofluorescence and IR.

  • Machine-vision lighting – Pair with green LEDs or lasers to boost SNR in reflective-part inspection and pick-and-place systems.

  • Projection & display engines – Channel green primaries cleanly in laser-phosphor or RGB-LED light paths.

  • Multispectral & hyperspectral cameras – Use as a discrete green channel with an NIR reference for vegetation indexing.

  • Augmented-reality waveguides – Inject bright green imagery into see-through combiners without heating the substrate.

Round, square, or free-form blanks from 5 mm to 450 mm can be supplied on Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG glass in thicknesses from 0.21 mm to 3.8 mm—delivered fast to keep your project moving.

 

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