Durable Led Street Light Lens Cover From Polished Borosilicate Glass

Durable Led Street Light Lens Cover From Polished Borosilicate Glass

1. Material & Manufacturing

• Core Material: Optical-grade borosilicate glass (Schott Borofloat® equivalent)

• Surface Treatment:

  • Precision optical polishing (Ra < 0.5nm)

  • Optional anti-reflective coating (>98% transmission)

• Structural Enhancement: Chemical tempering for subsurface compression

2. Critical Properties

• Extreme Durability:

  • IK10 impact rating (20J impact resistance)

  • 9H hardness (Mohs scale) against abrasion

• Environmental Resistance:

  • Thermal shock tolerance: ΔT >220°C

  • IP68 waterproof rating (submersion to 1.5m)

• Optical Performance:

  • >93% light transmission (uncoated)

  • <2% haze for uniform distribution

• UV Stability: Near-zero solarization after 100,000+ operational hours

3. Core Functions

• Optical Control: Engineered for Type II-V light distribution (batwing pattern)

• Vandalism Protection: Withstands hammer blows and projectile impacts

• Glare Reduction: Minimizes uplight (ULP <1%) for roadway compliance

• Thermal Management: Allows passive cooling of 200W+ LED arrays

• Maintenance Reduction: Eliminates yellowing/hazing vs. polycarbonate

4. Applications

• Roadway Lighting:

  • Cobra head street lights (ANSI C136.31 compliant)

  • Highway/parking lot fixtures

• Specialized Installations:

  • Coastal areas (salt corrosion resistance)

  • Desert environments (sand abrasion protection)

• High-Security Zones:

  • Prison perimeter lighting

  • Military base illumination