GLS665 Visible Light Absorbing Dye – 665nm Peak for Red Laser Rejection and Covert Security
GLS665 is a high-performance deep-red visible light absorbing dye engineered for precise absorption at 665nm across the 400–700nm visible spectrum. It offers excellent solubility, high optical stability, and strong compatibility with optical resins, coatings, and security ink systems. Designed for precision optical control and covert anti-counterfeiting, GLS665 ensures stable performance in optical filters, laser protection, display components, and polymer coloration.
Key Features
- Precise absorption peak at 665±2nm (in MA)
- Deep red light absorption for optical filtering and light management
- High purity and low impurity for stable optical performance
- Excellent solubility in methyl acetate (MA)
- Outstanding lightfastness and heat stability
- Low color shift and long service life
- Ideal for covert anti-counterfeiting and precision optics
- Compatible with PC, PMMA, and optical coating systems
Typical Specifications
- Absorption λmax: 665±2nm (in MA)
- Appearance: Dark purple solid
- Solubility: Soluble in MA
Applications
Optical Filters & Light Cutoff Films
GLS665 selectively absorbs 665nm deep-red light for optical filters, camera lenses, sensor films, and display components, improving contrast and reducing flare.
Anti-Counterfeiting Ink & Security Printing
Used in covert security inks for banknotes, certificates, and high-end packaging. Marks are invisible under normal light but detectable with 665nm detection equipment.
Laser Safety & Optical Protection
Suitable for laser safety filters and protective goggles targeting 665nm laser systems, ensuring safe operation in optical and industrial environments.
Transparent Coloring for Engineering Plastics
Compatible with PC, PMMA, and other thermoplastic resins for uniform transparent coloration in optical parts, automotive lighting, and electronic components.
Precision Optical Components
Widely used in optical sensors, imaging systems, analytical instruments, and optical coupling devices requiring precise spectral control.
FAQ
What is the absorption peak of GLS665?
GLS665 has a precise absorption maximum at 665±2nm measured in methyl acetate (MA).
Is GLS665 suitable for optical filter production?
Yes, it is specially designed for optical filters, cutoff films, and high-contrast lens systems.
Can GLS665 be used in anti-counterfeiting ink?
Yes, it is widely used in covert security printing and invisible anti-counterfeiting marking.