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SP680 Shortpass Filter: Precision UV/VIS Transmission & IR Blocking | Sharp 680nm Cutoff

SP680 Shortpass Filter: Precision UV/VIS Transmission & IR Blocking | Sharp 680nm Cutoff

In applications demanding strict isolation of UV/visible light while rejecting infrared noise, spectral precision defines performance. Manufactures delivers uncompromising optical engineering with the SP680 Shortpass Filter – engineered for critical UV/VIS transmission (300–680nm) and aggressive IR blocking (>680nm) in scientific, industrial, and imaging systems.

  • Details

master Spectral Control with the SP680 Shortpass Optical Filter
Ultra-Sharp 680nm Cutoff | >90% UV/VIS Transmission | Industrial-Grade Reliability


In applications demanding strict isolation of UV/visible light while rejecting infrared noise, spectral precision defines performance. Manufactures delivers uncompromising optical engineering with the SP680 Shortpass Filter – engineered for critical UV/VIS transmission (300–680nm) and aggressive IR blocking (>680nm) in scientific, industrial, and imaging systems.

Guangzhou Lighting Glass Co., Ltd.

Key Performance Features

  • Precision 680nm Cutoff: Sharp transition edge (±5nm) separates transmitted UV/VIS from blocked IR radiation.

  • High UV/VIS Transmission: >90% average transmission across 400–650nm.

  • Deep IR Blocking (OD4+): Blocks >99.99% of NIR/SWIR radiation (700–1100nm).

  • Low Autofluorescence: Ideal for sensitive detection (e.g., fluorescence microscopy).

  • Angle Stability: <2% shift at 30° incidence.


Engineered for Demanding Environments

  • Thermal Resilience: Withstands -40°C to +120°C (Δλc <0.1nm/°C).

  • Abrasion-Resistant: Hard-coated surfaces (MIL-C-675C compliant) survive harsh handling.

  • Moisture-Proof: Sealed edges prevent coating degradation in humid conditions.

Guangzhou Lighting Glass Co., Ltd.

Critical Applications

  • Fluorescence Microscopy: Isolate excitation signals from IR noise.

  • Machine Vision: Enhance contrast in UV/VIS imaging under IR-rich environments.

  • Solar Simulators: Replicate AM1.5 spectrum without IR contamination.

  • Forensics: Detect trace evidence under UV light with zero IR interference.

  • Industrial Sorting: Classify materials using UV/VIS reflectance signatures.

  • Spectroscopy: Purge IR noise from UV/VIS spectral analysis.


Integration Flexibility

  • Standard Sizes: Ø12.5mm, Ø25mm, 25×36mm (1–3mm thickness).

  • Custom Options:

    • Non-standard dimensions/cutouts

    • AR coatings (backside or dual-side)

    • Wedged substrates to eliminate etalon effects

  • Mounting Solutions: Threaded retainers, adhesive frames, or OEM module integration.

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