C13116 Shortpass Filter
Short-pass filter passing vivid blue-cyan (410 – 565 nm) while crushing red-IR light beyond 610 nm for cool, glare-free illumination.
- Blue-cyan passband: 410 – 565 nm, 92 – 94 % T
- Cutoff (T50): ~585 nm
- Edge steepness: ≈ 10 nm (90 → 10 % transition)
- Blocking band: < 0.5 % T 610 – 740 nm
- Construction: Ion-assisted hard-oxide dielectric; 5 – 450 mm custom shapes
- Custom options: Edge tuning, ripple smoothing, 45° AOI, large plates
Learn more
C13116 delivers a clean blue-cyan band while wiping out almost everything
from deep yellow through infrared. Transmission climbs past 90 % by
~410 nm and stays flat (~92–94 %) to 565 nm. Just after 585 nm the curve
plunges below one percent and hugs the baseline past 740 nm, so virtually
no green-red or IR leaks through. Rugged ion-assisted coatings shrug off
heat, humidity, solvents, and frequent cleaning, while KUPO can shift
edges, smooth ripples, provide 45° AOI versions, or ship plates up to
450 mm in roughly two weeks.
Typical uses: stage & architectural lighting, fluorescence
microscopy & cytometry, machine-vision illumination, blue-laser curing &
lithography, and AR/VR optics needing bright blue imagery without
green-red bleed.
Description
C13116 gives you a clean blue-cyan band while it wipes out almost everything from deep yellow through infrared. Transmission climbs past 90 % at about 410 nm and stays flat—roughly 92–94 %—all the way to 565 nm. Just after 585 nm the curve drops below 1 % and hugs the baseline beyond 740 nm, so virtually no green-red or IR light sneaks through.
Key advantages
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Bright blue-cyan window – >90 % T from 410 nm to 565 nm for LEDs, lasers, or fluorescence excitation.
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Sharp 585 nm cutoff – ~10 nm edge separates cool tones from warm ones, keeping colour purity high.
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Deep blocking band – <0.5 % T from 610 nm to 740 nm removes red glare and IR heat.
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Rugged hard-oxide coating – Handles stage heat, humidity, solvents, and frequent cleaning.
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Fast custom options – Edge tuning, ripple smoothing, 45 ° AOI versions, and large plates (up to 300 mm) in around two weeks.
Typical applications
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Stage & architectural lighting – Slot into ellipsoidals or PARs for vivid ice-blue washes without red heat, saving gels and lamp life.
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Fluorescence microscopy & cytometry – Excite CFP/FITC dyes while blocking longer-wavelength emissions.
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Machine-vision illumination – Pair with 450 nm LED bars for high-contrast inspection of plastics, pills, or security inks.
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Blue-laser lithography & curing – Pass 405–450 nm lines for photoresists while stopping red/IR that can warp substrates.
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AR / VR optics – Inject bright blue graphics without leaking green-red light into the eye path.
Need tiny chips, unusual shapes, or OEM volumes? KUPO Optics can prototype and ship C13116—from 10 mm chips to full-format plates—fast.
