Y1002 Longpass Filter
Isolate cyan to near-infrared light with negligible blue contamination across broad wavelength transmission.
- Passband: 500 – 768 nm, 90.1 – 95.4 % T (± 2.7 % ripple)
- Cut-on (T50): ≈ 489 nm
- Edge steepness: ~23 nm (10 → 90 % transition)
- Blocking: < 0.98 % T below 460 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
Y1002 Hybrid delivers Passband 500 – 768 nm, 90.1 – 95.4 % T (± 2.7 % ripple), Cut-on (T50) ≈ 489 nm, and Edge steepness ~23 nm (10 → 90 % transition).
The hard-oxide coating is built for repeated handling, heat, and cleaning.
Best suited for:
Blue blocking and cyan channel imaging, FITC and GFP fluorescence separation, blue-glare rejection in industrial vision systems, and multicolor confocal microscopy.
Description
The Y1002 sets its 50 % cut-on at 489.4 nm, blocking UV, violet, and deep blue while transmitting from cyan through the near-infrared with average throughput above 94 %. The passband runs from approximately 496 nm to 780 nm with a peak of 95.4 % near 663 nm. Blocking is solid, holding below 1 % from 380 to 472 nm. This filter cleanly separates cyan-onset wavelengths from shorter blue energy.
Key Advantages
- 489 nm cut-on for cyan-edge pass - T50 % at 489.4 nm positions the transition right at the blue-cyan boundary, passing cyan through NIR.
- Peak 95.4 % with flat passband - Average transmission above 94 % from 496 to 780 nm with minimal ripple across the entire window.
- OD 2+ UV-blue blocking - Transmission under 0.4 % from 380 to 472 nm rejects UV and violet without leakage.
- Hard-oxide durability - Ion-assisted sputtered coating withstands thermal cycling, solvent exposure, 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 glass.
Typical Applications
- GFP emission filtering - Passes GFP and FITC emission (500+ nm) while blocking 488 nm laser excitation and shorter wavelengths.
- Colorimetric analysis - Defines a cyan-to-NIR detection window for spectrophotometers analyzing warm-toned samples.
- Marine & underwater optics - Passes the cyan-green light that penetrates seawater while blocking UV scatter.
- Agricultural remote sensing - Captures green, red, and NIR reflectance for vegetation health indices while rejecting UV-blue atmospheric scatter.
- Projection optics - Splits the warm half of the visible spectrum from the cool half in projection color management systems.
KUPO Optics delivers the Y1002 in any format you need - from rapid prototypes to production volumes. Contact us with your requirements.
FAQ
Y1002 FAQ
What is Y1002 and what is it used for?
Y1002 is a 490 nm Longpass Filter. The Y1002 sets its 50 % cut-on at 489.4 nm, blocking UV, violet, and deep blue while transmitting from cyan through the near-infrared with average throughput above 94 %. The passband runs from approximately 496 nm to 780 nm with a peak of 95.4 % near 663 nm. Common uses include GFP emission filtering, Colorimetric analysis, Marine & underwater optics, and Agricultural remote sensing.
What are the key optical specs of Y1002?
Key published specs for Y1002 include Passband: 500 – 768 nm, 90.1 – 95.4 % T (± 2.7 % ripple); Cut-on (T50): ≈ 489 nm; Edge steepness: ~23 nm (10 → 90 % transition); Blocking: < 0.98 % T below 460 nm (OD ≥ 2); AOI: 0° (normal incidence); custom angles available.
What applications is Y1002 best suited for?
Y1002 is commonly used for GFP emission filtering, Colorimetric analysis, Marine & underwater optics, and Agricultural remote sensing. GFP emission filtering - Passes GFP and FITC emission (500+ nm) while blocking 488 nm laser excitation and shorter wavelengths.
Can Y1002 be customized for size, substrate, or coating requirements?
KUPO lists the construction for Y1002 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 glass.
What should I know about angle of incidence and durability for Y1002?
The published angle of incidence for Y1002 is 0° (normal incidence); custom angles available. The hard-oxide coating is built for repeated handling, heat, and cleaning.
