G73504 Dual-Band Filter

Tight-band green filter (460 – 514 nm, > 90 % T) with <0.5 % UV/blue and <1 % red leakage, plus an optional 735 nm NIR peek for alignment.

  • Green passband: 460 – 514 nm, > 90 % T
  • UV/blue block: < 0.5 % T below 460 nm
  • Red block: < 1 % T @ 560 – 677 nm
  • NIR window: ~80 % T @ 735 nm (optional)
  • Construction: Ion-assisted hard-oxide; 5 – 450 mm, 0.21 – 3.8 mm thick
  • Custom options: AOI tuning, ripple smoothing, rapid prototypes
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G32503 peaks near 500 nm, delivering vivid green output while crushing stray UV/blue, yellow-red, and most mid-IR. Transmission climbs past 90 % around 460 nm, holds > 90 % through roughly 514 nm, and falls below one percent by ~550 nm. A controlled rise beyond 700 nm reaches ~80 % at 735 nm for alignment beacons or dual-band imaging, then tapers toward 750 nm.

KUPO coats Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG substrates in 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, multispectral vegetation indexing (green + NIR), saturated stage beams, and AR waveguides needing bright green injection without UV/IR heat.

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Description

The G73504 isolates bright green transmission at 510 nm with a 40 nm passband and 93.9 % peak efficiency. Engineered for color-critical applications, this filter achieves exceptional blue-side blocking while maintaining manageable long-wavelength characteristics, positioning it as the standard choice for precision green detection.

Key Advantages

  • High-Efficiency Green Isolation – 93.9 % peak transmission at 510 nm with > 90 % average efficiency across 486-517 nm passband
  • Ultralow Blue Blocking – Transmits only 0.2 % of light below passband edge, eliminating cyan and UV contamination in detection channels
  • Durable Hard-Oxide Deposition – Ion-assisted coating technology resists environmental moisture, cleaning solvents, and thermal stress in production systems
  • Controlled Long-Wave Tail – 11.65 % transmission above passband allows intentional dual-band designs when combined with long-pass filters
  • Standard and Custom Geometries – Available as round, square, or free-form optical blanks (5-450 mm diameter/width) on multiple substrates with 0.21-3.8 mm thickness options

Typical Applications

  • Traffic Light Testing – Validate green signal output in LED traffic control systems with standardized spectral response matching international specifications
  • Laser Diode Filtering – Extract 510 nm output from multimode laser diodes while rejecting broadband spontaneous emission and pump light
  • Plant Health Monitoring – Measure chlorophyll fluorescence signatures in vegetation remote sensing and precision agriculture applications
  • Optical Coherence Tomography – Select 520 nm swept-source wavelengths in OCT systems for high-resolution skin and tissue imaging
  • 3D Machine Vision – Enhance contrast in structured light and stereo vision systems by isolating green wavelengths for human eye compatibility

Deploy G73504 filters in your production environment with confidence; we provide rapid prototyping support and scaled manufacturing capabilities.

FAQ

G73504 FAQ

What is G73504 and what is it used for?

G73504 is a 510 nm Bandpass Filter. The G73504 isolates bright green transmission at 510 nm with a 40 nm passband and 93.9 % peak efficiency. Engineered for color-critical applications, this filter achieves exceptional blue-side blocking while maintaining manageable long-wavelength characteristics, positioning it as the standard choice for precision green detection. Common uses include Traffic Light Testing, Laser Diode Filtering, Plant Health Monitoring, and Optical Coherence Tomography.

What are the key optical specs of G73504?

Key published specs for G73504 include Centre wavelength (CWL): 502 nm; Bandwidth (FWHM): 40 nm; Peak transmittance: ≥ 93.9 % T; Passband range: 482 – 522 nm; Edge steepness: ~15 nm (10 → 90 % per edge).

What applications is G73504 best suited for?

G73504 is commonly used for Traffic Light Testing, Laser Diode Filtering, Plant Health Monitoring, and Optical Coherence Tomography. Traffic Light Testing - Validate green signal output in LED traffic control systems with standardized spectral response matching international specifications.

Can G73504 be customized for size, substrate, or coating requirements?

KUPO lists the construction for G73504 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. Standard and Custom Geometries - Available as round, square, or free-form optical blanks (5-450 mm diameter/width) on multiple substrates with 0.21-3.8 mm thickness options.

What should I know about angle of incidence and durability for G73504?

The published angle of incidence for G73504 is 0° (normal incidence); custom angles available. The hard-oxide coating is built for repeated handling, heat, and cleaning.

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