C13116 Shortpass Filter
Deep-yellow shortpass for warm-light transmission and near-infrared blocking.
- Passband: 397 – 577 nm, 90.1 – 95.3 % T (± 2.6 % ripple)
- Cut-off (T50): ≈ 590 nm
- Edge steepness: ~30 nm (90 → 10 % transition)
- Blocking: < 0.95 % T above 640 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
C13116 Hybrid delivers Passband 397 – 577 nm, 90.1 – 95.3 % T (± 2.6 % ripple), Cut-off (T50) ≈ 590 nm, and Edge steepness ~30 nm (90 → 10 % transition).
The hard-oxide coating is built for repeated handling, heat, and cleaning.
Best suited for:
NIR rejection, thermal imaging separation, visible-light cameras, optical sensing.
Description
The C13116 passes UV through the orange edge with its 50 % cut-off measured at 589.7 nm. Transmission peaks at 94.4 % near 530 nm and averages above 91 % from 395 to 580 nm, covering a 185 nm-wide passband that spans violet through yellow-orange. Blocking closes in rapidly, reaching below 1 % by 615 nm and holding under 0.85 % on average to 780 nm. UV-A transmission sits at approximately 75 % near 380 nm.
Key Advantages
- 590 nm cut-off at the orange boundary – T50 % at 589.7 nm passes every visible wavelength short of deep orange, providing the widest cool-visible window in the C-series.
- 185 nm-wide passband – Covers 395 to 580 nm above 91 % average transmission, accommodating the broadest range of excitation or illumination sources.
- Sub-0.85 % blocking to 780 nm – Orange, red, and NIR rejection averages under 0.85 % with no secondary transmission peaks.
- Hard-oxide durability – Ion-assisted sputtered coating withstands high-intensity sources, humidity, solvents, and repeated 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.
Typical Applications
- Broadband visible imaging – Transmits the full cool-to-yellow visible band for color cameras requiring maximum spectral coverage below orange.
- Orange-line blocking – Removes sodium doublet and other orange emission lines in spectroscopy, astronomy, and street-lighting rejection systems.
- Multi-dye fluorescence – Passes excitation lines from 405 nm to 577 nm simultaneously, enabling multi-label experiments without filter changes.
- Hyperspectral remote sensing – Defines the visible collection band in airborne or satellite sensors that require orange-NIR exclusion.
- Entertainment & stage lighting – Produces a full cool-visible wash from UV through yellow with complete suppression of warm orange and red spill.
KUPO Optics builds the C13116 to your specifications - prototypes in days, volume production on your schedule.
FAQ
C13116 FAQ
What is C13116 and what is it used for?
C13116 is a 590 nm Shortpass Filter. The C13116 passes UV through the orange edge with its 50 % cut-off measured at 589.7 nm. Transmission peaks at 95.3 % near 568 nm and averages above 93 % across the broad 392-581 nm passband - nearly 190 nm of high-throughput bandwidth covering violet through yellow-orange. Common uses include Sodium-line filtering, Color-balanced imaging, Fluorescence microscopy, and Food & beverage QC.
What are the key optical specs of C13116?
Key published specs for C13116 include Passband: 397 – 577 nm, 90.1 – 95.3 % T (± 2.6 % ripple); Cut-off (T50): ≈ 590 nm; Edge steepness: ~30 nm (90 → 10 % transition); Blocking: < 0.95 % T above 640 nm (OD ≥ 2); AOI: 0° (normal incidence); custom angles available.
What applications is C13116 best suited for?
C13116 is commonly used for Sodium-line filtering, Color-balanced imaging, Fluorescence microscopy, and Food & beverage QC. Sodium-line filtering - Passes the full visible spectrum while cutting precisely at 589 nm to reject sodium vapor emission in light-polluted environments.
Can C13116 be customized for size, substrate, or coating requirements?
KUPO lists the construction for C13116 as Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick. Published custom options include Edge tuning, ripple smoothing, 45° AOI, rapid prototypes. 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.
What should I know about angle of incidence and durability for C13116?
The published angle of incidence for C13116 is 0° (normal incidence); custom angles available. The hard-oxide coating is built for repeated handling, heat, and cleaning.
