Overview High Index Reflective Glass Beads
Fundamentals of reflective
High reflective glass beads can be regarded as spherical lenses. When a reflective layer is placed at its focal point, incident light well Ground returns to the light source. The position of the focus of the glass beads depends on the refractive index of the glass beads.
High index reflective glass beads require higher retro-reflectivity, where top data is above 2.2 is required; we use special glass which is more precise and lower on heavy metal with a high reflective index and more stable performance.
High index reflective glass beads are a new type of silicate material with good retro-reflectivity when the refractive index is between 1.9 and 2.2. That is, when a beam of light illuminates the surface of the bead at any angle within a certain range, it is concentrated on a specific reflective layer behind the bead due to the refraction of the bead, and the reflective coating reflects the light in parallel along the direction of the light source.
The Technical Data of High Index Reflective Glass Beads
| Item | Standard |
| Appearance | Clean, transparent, no obvious impurity |
| Reflective distance | ≥ 150m |
| Specific gravity (g/cm 3 ) | 4.2 |
| McD/lx.m2 | ≥700 |
| Refractive index | 1.9-1.93 |
| Spherical beads (%) | ≥ 90 |
| Usage | ≥500g/m2 |
The Advantage of High Index Reflective Glass Beads
- Retro-reflective properties, good mechanical strength
- Chemical stability, electrical insulation and energy saving
- High roundness, usually ＞80%
- Clear glass material
- Competitive factory price
- Increase paint life
- RI＞1.9
- 24 hours quality control
- Advanced test lab
The Application of High Index Reflective Glass Beads
Reflective materials have the characteristics of retro-reflective and thus produce a solid retro-reflective effect without consuming additional energy.
Because it reflects almost all of the light in a minimal angle range, its brightness is much higher than ordinary passable objects. Therefore, it can be widely used in roads, ports, mines, fire protection, and other fields. As a safety sign, it has dramatically improved user safety and reliability. Cursor line paint, reflective cloth, reflective leather, reflective webbing, reflective safety silk fabric, etc.
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