G2810 Broad Bandpass Filter
Emerald-green filter (520 – 550 nm, > 90 % T) with < 1 % UV/blue & red leakage and only a mild < 12 % IR tail beyond 760 nm.
- Green passband: 520 – 550 nm, > 90 % T
- UV/blue block: < 1 % T @ 390 – 480 nm
- Red block: < 1 % T @ 600 – 745 nm
- IR tail: < 12 % T @ 780 nm
- Construction: Ion-assisted hard-oxide; 5 – 450 mm, 0.21 – 3.8 mm thick
- Custom options: AOI tuning, ripple flattening, rapid prototypes
Learn more
G2810 isolates a clean slice of emerald-green while driving nearly
every other wavelength into the noise. Transmission breaks 90 % near 520 nm,
stays above that threshold to ~550 nm, and drops below one percent by ~600 nm.
UV/blue energy remains near zero (aside from a modest ~10 % ripple around
390 nm that can be flattened on request), and yellow-to-red light stays
suppressed out to the near-IR; only a gentle tail climbs toward ~12 % at
780 nm.
KUPO coats Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG substrates
cut to any outline—from 5 mm chips to 450 mm plates—with 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, RGB laser/LED projection, discrete green channels in multispectral
cameras, saturated stage beams, and AR waveguides that need bright green
injection free of UV/IR heat.
Description
G2810 isolates a clean slice of emerald-green while pushing nearly every other wavelength into the noise. Transmission breaks the 90 % mark at roughly 520 nm, stays > 90 % through about 550 nm, and drops below 1 % by ~600 nm. UV/blue energy is held near zero (aside from a small ~10 % ripple around 390 nm that can be flattened on request), and yellow-to-red light remains suppressed right out to the near-IR; only a mild tail climbs toward ~12 % at 780 nm. When you need saturated green and minimal leakage anywhere else, G2810 keeps the beam crystal-clear.
Key advantages
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Tight 520 – 550 nm passband – > 90 % transmission delivers vivid, high-brightness green.
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Deep broadband blocking – < 1 % T from 390 – 480 nm and 600 – 745 nm shields sensors from UV/blue noise and red flare.
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Minimal IR tail – Only a gentle rise beyond 760 nm avoids spurious NIR pickup in most camera sensors.
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Hard-oxide durability – Ion-assisted coating resists heat, humidity, solvents, and repeated cleaning.
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Flexible formats – Round, square, or free-form 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
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Fluorescence microscopy & cytometry – Excite FITC-style dyes while dumping autofluorescence and IR.
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Machine-vision illumination – Pair with green LEDs or lasers to maximise SNR in reflective-part inspection.
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Projection & display engines – Channel the green primary cleanly in laser-phosphor or RGB-LED light paths.
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Multispectral & hyperspectral cameras – Supply a discrete green channel for vegetation or stress indexing.
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Stage & architectural lighting – Produce razor-saturated green beams or washes that stay bright without heating gels.
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Augmented-reality waveguides – Inject bright green imagery into see-through combiners while keeping the substrate cool.
Need prototypes next week or production lots next quarter? G2810 filters can be coated, diced, and shipped to your exact specifications—fast.
