G73813 Broad Bandpass Filter
Mid-green filter (528 – 565 nm, > 90 % T) with sub-1 % UV/blue & red leakage and a very mild < 7 % IR tail beyond 760 nm.
- Green passband: 528 – 565 nm, > 90 % T
- UV/blue block: < 1 % T @ 395 – 500 nm
- Red block: < 1 % T @ 605 – 750 nm
- IR tail: < 7 % T beyond 760 nm
- Construction: Ion-assisted hard-oxide; 5 – 450 mm, 0.21 – 3.8 mm thick
- Custom options: AOI tuning, ripple flattening, rapid prototypes
Learn more
G73813 passes a vivid, highly saturated slice of green while
tamping down stray photons almost everywhere else. Transmission clears 90 % at
~528 nm, stays above that level to ~565 nm, and plunges below 1 % by ~605 nm.
UV/blue sits near zero (aside from an ≈8 % ripple around 390 nm KUPO can flatten
on request), and yellow-through-red light is suppressed to the detector floor
out to ~760 nm, where only a gentle tail rises to under 7 % at 780 nm.
KUPO coats Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG substrates
cut to any outline—from 5 mm chips to 450 mm plates—with thicknesses
of 0.21 – 3.8 mm, and can ship prototypes in about two weeks.
Typical uses: FITC-style fluorescence excitation, green-LED machine
vision, RGB laser/LED projection, discrete green channels for vegetation
indexing, saturated stage beams, and AR waveguides that need bright green
injection without UV/IR heat.
Description
The G73813 transitions the bandpass series into the yellow-green region with a 53 nm passband, delivering 93.4 % peak transmission at 560 nm. Exceptional blocking on both sides of the passband makes this filter ideal for applications requiring clean yellow-green isolation with minimal spectral cross-talk.
Key Advantages
- Yellow-Green Wavelength Selection – 53 nm passband spans 524-567 nm with > 90 % average transmission for bright, saturated color detection
- Exceptional Two-Sided Blocking – Blocks 98.93 % of UV light and 99.01 % of red/NIR wavelengths, achieving near-perfect isolation
- Hard-Oxide Ion-Assisted Coating – Industry-leading durability resists abrasion, moisture contamination, and thermal stress in production environments
- Peak Transmission Efficiency – 93.4 % at 560 nm maximizes signal collection in fluorescence and reflectance-based detection systems
- Flexible Geometry Options – Available as round, square, or custom free-form blanks (5-450 mm) on Borofloat, soda-lime, Schott D263 T, or Corning Eagle XG (0.21-3.8 mm thickness)
Typical Applications
- Chlorophyll Fluorescence – Measure photosynthetic efficiency in plants using yellow-green excitation that penetrates tissue while collecting red-shifted emission
- Phycobiliprotein Detection – Excite phycobiliproteins in cyanobacteria and algae with precise wavelength matching for high-sensitivity biomass monitoring
- Lipstick and Cosmetics Testing – Develop and quality-control yellow-green makeup products with color matching to reference standards
- Traffic Control Systems – Enable detection of yellow signal status in autonomous vehicle vision systems with minimal red confusion
- Botanical Research – Study xanthophyll-based photosynthetic feedback mechanisms using species-specific excitation and detection windows
Deploy G73813 filters in yellow-green detection systems with confidence; prototyping support and production volume scaling available.
FAQ
G73813 FAQ
What is G73813 and what is it used for?
G73813 is a 560 nm Bandpass Filter. The G73813 transitions the bandpass series into the yellow-green region with a 53 nm passband, delivering 93.4 % peak transmission at 560 nm. Exceptional blocking on both sides of the passband makes this filter ideal for applications requiring clean yellow-green isolation with minimal spectral cross-talk. Common uses include Chlorophyll Fluorescence, Phycobiliprotein Detection, Lipstick and Cosmetics Testing, and Traffic Control Systems.
What are the key optical specs of G73813?
Key published specs for G73813 include Centre wavelength (CWL): 546.5 nm; Bandwidth (FWHM): 53 nm; Peak transmittance: ≥ 93.4 % T; Passband range: 520 – 573 nm; Edge steepness: ~18 nm (10 → 90 % per edge).
What applications is G73813 best suited for?
G73813 is commonly used for Chlorophyll Fluorescence, Phycobiliprotein Detection, Lipstick and Cosmetics Testing, and Traffic Control Systems. Chlorophyll Fluorescence - Measure photosynthetic efficiency in plants using yellow-green excitation that penetrates tissue while collecting red-shifted emission.
Can G73813 be customized for size, substrate, or coating requirements?
KUPO lists the construction for G73813 as Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick. Published custom options include CWL shifting, bandwidth tuning, custom blocking ranges, rapid prototypes. Flexible Geometry Options - Available as round, square, or custom free-form blanks (5-450 mm) on Borofloat, soda-lime, Schott D263 T, or Corning Eagle XG (0.21-3.8 mm thickness).
What should I know about angle of incidence and durability for G73813?
The published angle of incidence for G73813 is 0° (normal incidence); custom angles available. The hard-oxide coating is built for repeated handling, heat, and cleaning.
