G74015 Broad Bandpass Filter
Mid-green filter (535 – 572 nm, > 90 % T) with sub-1 % leakage outside the band and only a mild < 5 % IR tail beyond 760 nm.
- Green passband: 535 – 572 nm, > 90 % T
- UV/blue block: < 1 % T @ 400 – 505 nm
- Red block: < 1 % T @ 614 – 760 nm
- IR tail: < 5 % T beyond 760 nm
- Construction: Ion-assisted hard-oxide; 5 – 450 mm, 0.21 – 3.8 mm thick
- Custom options: Ripple flattening, AOI tuning, rapid prototypes
Learn more
G74015 is a tight-band green filter that drives > 90 % of incoming
light straight through a flat window centred on the eye-sensitive 535 – 572 nm zone,
then slams the door on everything else. Below ~505 nm transmission is essentially
zero—apart from two small ripples near 382 nm (≈30 %) and 391 nm (≈20 %) that KUPO
can flatten on request. Above ~614 nm it plunges back under one percent and stays
there out past 760 nm, with only a gentle tail under five percent toward the
spectral edge. The result: saturated, camera-friendly green with minimal UV, blue,
yellow-red, or IR leakage.
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 or DPSS-laser
machine vision, RGB laser/LED projection, discrete green channels for vegetation
indexing, saturated stage beams, and AR/HUD waveguides that need bright green
injection without UV/IR heat.
Description
G74015 is a tight-green bandpass that lets > 90 % of light through a flat window centred on the eye-sensitive 535 – 572 nm zone, then shuts everything else down. Below about 505 nm transmission is essentially zero—apart from two small ripples near 382 nm (~30 %) and 391 nm (~20 %) that can be flattened on request. Above ~614 nm it plunges back under 1 % and stays there out past 760 nm, with only a gentle tail (< 5 %) toward the spectral edge. The result is a saturated, camera-friendly green with minimal UV, blue, yellow–red or IR leakage.
Key advantages
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High-flat passband (535 – 572 nm) – > 90 % peak transmission maximises green brightness and colour fidelity.
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Robust off-band blocking – < 1 % T from 400 – 505 nm and 614 – 760 nm keeps sensors free of UV/blue noise and red flare.
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Hard-oxide durability – Ion-assisted layers shrug off heat, humidity, solvents, and routine cleaning.
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Made-to-order formats – Round, square, or custom 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 & flow cytometry – Deliver FITC-style excitation while dumping autofluorescence and IR.
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Machine-vision illumination – Pair with green LEDs or DPSS lasers to sharpen contrast in reflective-part inspection.
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Projection & display engines – Cleanly route green primaries in laser-phosphor or RGB-LED light paths.
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Multispectral & hyperspectral cameras – Provide a discrete green band for vegetation or colour-indexing metrics.
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Stage & architectural lighting – Produce razor-saturated green beams or washes that stay vivid without heating gels.
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AR waveguides & HUDs – Inject bright green imagery into see-through combiners with minimal thermal load.
Need prototypes this month or high-volume shipments next quarter? G74015 filters can be coated, diced, and delivered to your exact spec—fast.
