GLS680 Visible Light Sensitive Dye – 680nm Peak for IR Cut-Off Filters, Anti-Counterfeiting & Optical Coatings
GLS680 is a high-performance visible light sensitive dye with a precise absorption peak at 680nm within the visible spectrum of 400–700nm.
This red-edge absorbing dye offers bright green powder appearance, excellent stability, and reliable spectral control, making it an ideal choice for IR cut-off filters, anti-counterfeiting inks, optical coatings, paints, and plastic applications. As a specialized visible light absorber operating at the transition edge between visible and near-infrared regions, GLS680 enables formulators to achieve targeted wavelength rejection with exceptional precision.
- Provides bright colors and excellent photostability
- Suitable for IR cut-off filters requiring sharp spectral cutoff
- Compatible with paint, coating, and plastic systems
Appearance: Green powder
入Max: 680±2nm(MA)
Solubility: Soluble in DMF, MC, TCM, and ethanol (EtOH)
Key Applications of Visible Light Sensitive Dyes of GLS680
IR Cut-Off Filters: Ideal for digital, smartphone, surveillance, and automotive cameras. Sharp 680nm absorption rejects NIR while maintaining high visible transmission, reducing color distortion and haze.
Anti-Counterfeiting Inks: Creates covert features detectable under 680nm illumination for machine-readable authentication. Protects banknotes, passports, tax stamps, pharma packaging, and luxury goods.
Optical Coatings: Used in precision filters, anti-reflective coatings, and notch filters that reject specific wavelengths.
Paints & Coatings: Additive for architectural, automotive, and specialty industrial paints requiring wavelength absorption or heat management.
Transparent Plastic Coloring: Compatible with PC, PMMA, and optical-grade polymers for NIR-blocking or visible-filtering components.
NIR Absorption Dye Systems: Combines with other dyes to create custom spectral absorption profiles.
Optical Filters for Displays: Improves contrast and color purity by controlling specific visible wavelengths.
Laser Protective Eyewear: Blocks 680nm lasers while maintaining visibility of other wavelengths – ideal for lab, industrial, and medical safety glasses.
Why Choose GLS680?
Red-Edge Absorption: Peak at 680nm for precise spectral cutoff between visible and near-infrared.
Selective Solubility: Soluble in DMF, MC, TCM, ethanol; insoluble in acetone – enables purification via acetone precipitation.
Excellent Stability: Consistent absorption performance under varying conditions.
Broad Compatibility: Works in IR cut-off filters, anti-counterfeiting inks, optical coatings, paints, plastics, and NIR dye systems.