G74015 Broad Bandpass Filter
Mid-green filter (535 – 572 nm, > 90 % T) with sub-1 % leakage outside the band and only a mild < 5 % IR tail beyond 760 nm.
- Green passband: 535 – 572 nm, > 90 % T
- UV/blue block: < 1 % T @ 400 – 505 nm
- Red block: < 1 % T @ 614 – 760 nm
- IR tail: < 5 % T beyond 760 nm
- Construction: Ion-assisted hard-oxide; 5 – 450 mm, 0.21 – 3.8 mm thick
- Custom options: Ripple flattening, AOI tuning, rapid prototypes
Learn more
G74015 is a tight-band green filter that drives > 90 % of incoming
light straight through a flat window centred on the eye-sensitive 535 – 572 nm zone,
then slams the door on everything else. Below ~505 nm transmission is essentially
zero—apart from two small ripples near 382 nm (≈30 %) and 391 nm (≈20 %) that KUPO
can flatten on request. Above ~614 nm it plunges back under one percent and stays
there out past 760 nm, with only a gentle tail under five percent toward the
spectral edge. The result: saturated, camera-friendly green with minimal UV, blue,
yellow-red, or IR leakage.
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 or DPSS-laser
machine vision, RGB laser/LED projection, discrete green channels for vegetation
indexing, saturated stage beams, and AR/HUD waveguides that need bright green
injection without UV/IR heat.
Description
The G74015 provides a balanced 54 nm passband centered at 566 nm with 94.1 % peak transmission. Exceptional long-wavelength blocking combined with solid green-side rejection positions this filter as an excellent choice for clean yellow-to-orange-red detection.
Key Advantages
- Yellow-Range Selectivity – 54 nm passband spans 531-575 nm with > 91 % average transmission across the yellow spectral range
- Superior Long-Wavelength Blocking – Blocks 97.92 % of red/NIR light while rejecting 97.92 % of UV, achieving excellent bilateral isolation
- Hard-Oxide Ion-Assisted Coating – Enhanced mechanical and chemical durability ensures consistent performance through repeated cleaning and extended field use
- Efficient Yellow-Green Transition – 94.1 % peak efficiency at 566 nm maximizes detection sensitivity for yellow-shifted fluorophores and dyes
- Versatile Substrate Customization – 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 thick)
Typical Applications
- Organic Dye Spectroscopy – Select yellow-dyed samples in analytical laboratories for UV-VIS spectrophotometry and chromatographic detection
- Semiconductor Inspection – Identify defects in silicon and compound semiconductor wafers using yellow-wavelength contrast imaging
- Carotenoid Analysis – Measure carotenoid pigment concentration in plant tissues, algae, and biological samples with species-specific selectivity
- LED Performance Testing – Validate yellow-green output characteristics in display and lighting applications against standardized color specifications
- Clinical Chemistry – Enable sensitive colorimetric assays using yellow-absorbing chromophores in clinical laboratory analyzers
Choose G74015 for yellow-range detection requiring clean spectral isolation; prototyping and production scaling support available.
FAQ
G74015 FAQ
What is G74015 and what is it used for?
G74015 is a 566 nm Bandpass Filter. The G74015 provides a balanced 54 nm passband centered at 566 nm with 94.1 % peak transmission. Exceptional long-wavelength blocking combined with solid green-side rejection positions this filter as an excellent choice for clean yellow-to-orange-red detection. Common uses include Organic Dye Spectroscopy, Semiconductor Inspection, Carotenoid Analysis, and LED Performance Testing.
What are the key optical specs of G74015?
Key published specs for G74015 include Centre wavelength (CWL): 554 nm; Bandwidth (FWHM): 54 nm; Peak transmittance: ≥ 94.1 % T; Passband range: 527 – 581 nm; Edge steepness: ~17.5 nm (10 → 90 % per edge).
What applications is G74015 best suited for?
G74015 is commonly used for Organic Dye Spectroscopy, Semiconductor Inspection, Carotenoid Analysis, and LED Performance Testing. Organic Dye Spectroscopy - Select yellow-dyed samples in analytical laboratories for UV-VIS spectrophotometry and chromatographic detection.
Can G74015 be customized for size, substrate, or coating requirements?
KUPO lists the construction for G74015 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. Versatile Substrate Customization - 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 thick).
What should I know about angle of incidence and durability for G74015?
The published angle of incidence for G74015 is 0° (normal incidence); custom angles available. The hard-oxide coating is built for repeated handling, heat, and cleaning.
