P12610 Broadband Notch Filter
Double-pass notch filter passing vivid violet (395 – 450 nm) and rich red (635 – 750 nm) while plunging green-cyan light below 1 % for a clean magenta spectrum.
- Violet passband: 395 – 450 nm, > 90 % T
- Deep notch: < 1 % T 470 – 610 nm
(valley ≈ 0.2 % T) - Red passband: 635 – 750 nm, 92 – 94 % T
- Construction: Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick
- Custom options: Ripple smoothing, AOI tuning, rapid prototypes
Learn more
P12610 transmits two bright windows—one in the near-UV/violet band (≈ 395 – 450 nm) and one in the deep red
(≈ 635 – 750 nm)—while driving the entire green-cyan region down to detector noise. Transmission exceeds
88 – 92 % through the violet, drops below one percent from ~470 nm to 610 nm, then climbs past 90 % again near
635 nm and rides 92 – 94 % out to ~750 nm. Rugged ion-assisted coatings shrug off heat, humidity, solvents, and
repeated cleaning. KUPO can coat Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG substrates in any
outline—from 5 mm chips to 450 mm plates, 0.21 – 3.8 mm thick—and ship prototypes in about two weeks.
Typical uses: violet-excite/red-detect fluorescence, magenta stage lighting, UV + red machine-vision
illumination, green-band suppression in Raman or multispectral sensors, and AR/HUD optics needing violet tracking
plus red graphics without mid-visible clutter.
Description
P12610 lets two bright windows through—one in the near-UV/violet band and one in the deep red—while it drives the entire green-cyan region down to detector noise. Transmission exceeds 88–92 % from roughly 395 nm to 450 nm, then drops below 1 % across about 470 nm – 610 nm. It climbs past 90 % again near 635 nm and holds 92–94 % out to ~750 nm before a gentle taper. Use it whenever you need vivid magenta light—or want violet excitation with red detection—minus the mid-visible clutter.
Key advantages
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Deep 470 – 610 nm notch – < 1 % T squashes green autofluorescence and ambient glare.
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High dual passbands – > 90 % T in 395 – 450 nm and 635 – 750 nm keeps violet sources and red detectors bright.
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Broad blocking floor – Mid-band floor down to ~0.2 % boosts signal-to-noise for sensitive imaging.
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Hard-oxide durability – Ion-assisted coating shrugs off heat, humidity, solvents, and repeated cleaning.
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Made-to-fit formats – Round, square, or free-form blanks from 5 mm to 450 mm, thickness 0.21 – 3.8 mm, on Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG glass.
Typical applications
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Fluorescence microscopy & cytometry – Pass violet excitation and red emission while silencing green background for crisper images.
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Raman & multispectral sensors – Block 532 nm or 561 nm laser lines yet keep violet and red Stokes/anti-Stokes bands.
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Stage & architectural lighting – Produce saturated magenta washes (violet + red) with negligible green spill.
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Machine-vision systems – Combine UV crack detection with red contour lighting, eliminating mid-band reflections.
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AR / HUD optics – Inject violet tracking beams and red graphics while keeping the central visible band dark to the eye.
Need prototypes fast or volume lots for production? P12610 filters can be coated, diced, and shipped to your exact specification—quickly.
