Narrow green filter (495 – 535 nm, > 90 % T) with strong UV/blue & red blocking plus an optional 740 nm NIR alignment window.
G13905 carves out a vivid green window while suppressing UV/blue,
yellow-red, and most mid-IR energy. Transmission passes 90 % near 495 nm,
stays above 90 % to ~535 nm, and drops below one percent before 580 nm.
A controlled rise beyond 700 nm peaks near 65 % at ~740 nm, delivering
an optional NIR “peek” for alignment or dual-band imaging without extra optics.
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, multispectral vegetation indexing, saturated stage beams,
and AR waveguides needing bright green injection without UV/IR heat.
The G13905 delivers a broad 57 nm green-to-yellow passband with 94.3 % peak transmission at 523 nm, achieving excellent transmission uniformity across its entire bandwidth. This filter excels in applications requiring spectral breadth without sacrificing blocking performance, making it ideal for bright illumination and wide-field detection systems.
Integrate G13905 filters into high-volume production with our proven manufacturing processes and rapid prototyping capabilities.
G13905 is a 523 nm Bandpass Filter. The G13905 delivers a broad 57 nm green-to-yellow passband with 94.3 % peak transmission at 523 nm, achieving excellent transmission uniformity across its entire bandwidth. This filter excels in applications requiring spectral breadth without sacrificing blocking performance, making it ideal for bright illumination and wide-field detection systems. Common uses include Wide-Field Epifluorescence, Stage Lighting Design, Environmental Monitoring, and Holographic Display.
Key published specs for G13905 include Centre wavelength (CWL): 518.5 nm; Bandwidth (FWHM): 57 nm; Peak transmittance: ≥ 94.3 % T; Passband range: 490 – 547 nm; Edge steepness: ~16 nm (10 → 90 % per edge).
G13905 is commonly used for Wide-Field Epifluorescence, Stage Lighting Design, Environmental Monitoring, and Holographic Display. Wide-Field Epifluorescence - Illuminate large sample areas uniformly while collecting green fluorescence from GFP, FITC, and related dyes with high efficiency.
KUPO lists the construction for G13905 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 - Supplied as round, square, or custom blanks (5-450 mm) on Borofloat, soda-lime, Schott D263 T, or Corning Eagle XG at your specified thickness (0.21-3.8 mm).
The published angle of incidence for G13905 is 0° (normal incidence); custom angles available. The hard-oxide coating is built for repeated handling, heat, and cleaning.
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