O01506 Longpass Filter
Isolate orange and infrared light while suppressing green and blue scatter in optical systems.
- Passband: 552 – 780 nm, 90.8 – 95.7 % T (± 2.5 % ripple)
- Cut-on (T50): ≈ 540 nm
- Edge steepness: ~26 nm (10 → 90 % transition)
- Blocking: < 0.99 % T below 505 nm (OD ≥ 2)
- AOI: 0° (normal incidence); custom angles available
- Construction: Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick
- Custom options: Edge tuning, ripple smoothing, 45° AOI, rapid prototypes
Learn more
O01506 Hybrid delivers Passband 552 – 780 nm, 90.8 – 95.7 % T (± 2.5 % ripple), Cut-on (T50) ≈ 540 nm, and Edge steepness ~26 nm (10 → 90 % transition).
The hard-oxide coating is built for repeated handling, heat, and cleaning.
Best suited for:
Orange LED filtering and imaging, YFP/RFP fluorescence, removal of blue scatter in microscopy, daylight-to-tungsten color rendering, and warm-tone accent lighting applications.
Description
The O01506 passes the warm-visible and near-infrared spectrum with its 50 % cut-on measured at 540.2 nm. The passband extends from 548 nm to 780 nm with average transmission above 94 %, peaking at 95.7 % near 733 nm. UV, violet, and blue wavelengths are blocked with average transmission under 0.5 % from 394 to 520 nm. A mild shoulder in the UV region around 380-393 nm shows slightly elevated transmission but remains below 15 %.
Key Advantages
- 540 nm cut-on at yellow-green onset - T50 % at 540.2 nm captures everything from warm green through NIR while rejecting shorter wavelengths.
- 95.7 % peak with flat response - Passband averages > 94 % across 230 nm of bandwidth, from yellow-green to 780 nm.
- Broad UV-blue blocking - Average transmission under 0.5 % from 394 to 520 nm delivers OD 2+ rejection.
- Hard-oxide durability - Ion-assisted sputtered coating withstands thermal cycling, humidity, solvent exposure, and cleaning.
- Custom 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 substrates.
Typical Applications
- TRITC & RFP emission collection - Passes orange and red fluorescence while blocking blue-green excitation wavelengths in microscopy.
- Sodium vapor lamp isolation - Transmits the sodium D-line (589 nm) and longer wavelengths while blocking blue and UV components in street-light analysis.
- Agricultural imaging - Captures yellow, red-edge, and NIR for crop stress indices while rejecting UV-blue atmospheric scatter.
- Industrial color sorting - Defines a warm-tone detection window for automated sorting of materials by color reflectance.
- Entertainment lighting - Strips cool tones from white sources to create warm amber-through-red washes for stage design.
Need the O01506 in a specific format or substrate? KUPO Optics delivers prototypes in days and production volumes on schedule.
FAQ
O01506 FAQ
What is O01506 and what is it used for?
O01506 is a 540 nm Longpass Filter. The O01506 passes the warm-visible and near-infrared spectrum with its 50 % cut-on measured at 540.2 nm. The passband extends from 548 nm to 780 nm with average transmission above 94 %, peaking at 95.7 % near 733 nm. Common uses include TRITC & RFP emission collection, Sodium vapor lamp isolation, Agricultural imaging, and Industrial color sorting.
What are the key optical specs of O01506?
Key published specs for O01506 include Passband: 552 – 780 nm, 90.8 – 95.7 % T (± 2.5 % ripple); Cut-on (T50): ≈ 540 nm; Edge steepness: ~26 nm (10 → 90 % transition); Blocking: < 0.99 % T below 505 nm (OD ≥ 2); AOI: 0° (normal incidence); custom angles available.
What applications is O01506 best suited for?
O01506 is commonly used for TRITC & RFP emission collection, Sodium vapor lamp isolation, Agricultural imaging, and Industrial color sorting. TRITC & RFP emission collection - Passes orange and red fluorescence while blocking blue-green excitation wavelengths in microscopy.
Can O01506 be customized for size, substrate, or coating requirements?
KUPO lists the construction for O01506 as Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick. Custom formats - Round, square, or free-form blanks on Borofloat, soda-lime, Schott D263 T, or Corning Eagle XG substrates.
What should I know about angle of incidence and durability for O01506?
The published angle of incidence for O01506 is 0° (normal incidence); custom angles available. The hard-oxide coating is built for repeated handling, heat, and cleaning.
