G73813 Broad Bandpass Filter
Mid-green filter (528 – 565 nm, > 90 % T) with sub-1 % UV/blue & red leakage and a very mild < 7 % IR tail beyond 760 nm.
- Green passband: 528 – 565 nm, > 90 % T
- UV/blue block: < 1 % T @ 395 – 500 nm
- Red block: < 1 % T @ 605 – 750 nm
- IR tail: < 7 % T beyond 760 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
G73813 passes a vivid, highly saturated slice of green while
tamping down stray photons almost everywhere else. Transmission clears 90 % at
~528 nm, stays above that level to ~565 nm, and plunges below 1 % by ~605 nm.
UV/blue sits near zero (aside from an ≈8 % ripple around 390 nm KUPO can flatten
on request), and yellow-through-red light is suppressed to the detector floor
out to ~760 nm, where only a gentle tail rises to under 7 % 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 for vegetation
indexing, saturated stage beams, and AR waveguides that need bright green
injection without UV/IR heat.
Description
G73813 passes a vivid, highly saturated band of mid-green while tamping down stray photons almost everywhere else. Transmission clears the 90 % mark at about 528 nm, stays above 90 % through roughly 565 nm, and plunges below 1 % by ~605 nm. UV/blue energy sits near zero (aside from a small ≈8 % ripple near 390 nm that can be flattened on request), and yellow-to-near-IR light is suppressed right out to 760 nm, where only a gentle tail rises to < 7 %. When you need pure green and virtually no leakage, G73813 keeps the beam laser-clean.
Key advantages
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Pure 528 – 565 nm passband – > 90 % transmission delivers bright, colour-accurate green for imaging or illumination.
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Deep broadband blocking – < 1 % T from 395 – 500 nm and 605 – 750 nm cuts UV/blue noise and red flare.
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Low IR tail – < 7 % beyond 760 nm avoids spurious NIR pickup in most sensors.
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Hard-oxide durability – Ion-assisted layers shrug off heat, humidity, solvents, and repeated cleaning.
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Made to order – 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/lasers to boost 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 – Provide a discrete green band 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? G73813 filters can be coated, diced, and shipped to your exact specifications—fast.
