Shanghai Longway Special Glass Co., Ltd.
                                                                                                           
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Custom Shatterproof High Transmission Borosilicate Glass LED Spotlight Lens

Price Negotiable
Price: NEGOTIATION
MOQ: 800 pieces
Delivery Time: Negotiable
Brand: LONGWAY
Product Description



‌Custom Shatterproof High Transmission Borosilicate Glass LED Spotlight Lens


1. Material:

  • Borosilicate Glass (Schott Borofloat® or equivalent): Chemically strengthened/tempered variant with ultra-low thermal expansion (CTE: 3.3 × 10⁻⁶/K).

  • Custom Geometry: Precision-molded or CNC-machined to specific diameters (20-300mm), thicknesses (2-15mm), and optical profiles (aspheric, plano-convex).


2. Key Properties:

  • Shatterproof Design: Thermally tempered or chemically strengthened to achieve 5x higher impact resistance vs. annealed glass (withstands 0.5kg steel ball drops from 1m+).

  • High Light Transmission: >93% visible light transmission (380-780nm) with anti-reflective coating options (>97%).

  • Thermal Stability: Handles ΔT >150°C without cracking – critical for high-power LED spotlights (50-500W).

  • Optical Precision: Wavefront distortion < λ/4 and surface roughness < 5nm for distortion-free beam projection.

  • UV/IR Resistance: Near-zero solarization (yellowing) under prolonged UV/IR exposure from LEDs.


3. Primary Functions:

  • Beam Control & Collimation: Precisely focuses LED output into tight beam angles (10°-45°) with minimal scatter loss.

  • Hazard Mitigation: Shatterproof construction contains glass fragments upon impact (EN 12150-1 compliant).

  • Efficiency Maximization: >93% transmission ensures maximum lumen output per watt, reducing energy costs.

  • Environmental Protection: Seals against IP65/66-rated dust/water ingress while resisting corrosion.


4. Customization Options:

  • Optical Profiles: Aspheric, Fresnel, convex-concave designs for beam shaping.

  • Coatings: AR, hydrophobic, or color-correction layers.

  • Peripheral Features: Flanges, mounting threads, or edge treatments for fixture integration.

  • Compliance: Custom certifications (UL, CE, RoHS) upon request.


5. Applications:

  • Architectural Spotlights: Museum/gallery accent lighting, façade illumination.

  • Stage & Entertainment: Follow spots, moving head fixtures, concert stage lighting.

  • Industrial Lighting: High-bay factory spotlights, inspection lamps.

  • Retail Lighting: Display case highlighting, premium product showcasing.

  • Marine/Aviation: Vibration-resistant navigation or deck lighting.


Item Glass led lens
Material Borosilicate glass
Diameter Tolerance +0/-0.5 mm
Thickness Tolerance +/-0.2 mm
Processed By Molding and Polishing
Working temperature Resisting high temperature shock
Surface Quality Clear and smooth
Transmission Around 90% for visible light
Tempering Available
Usage Lighting system and Optics etc.







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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shanghai Longway Special Glass Co., Ltd.
Location Rm. 2111, Bldg. A, Tomson Center, No. 188, Zhangyang Rd., Shanghai, China
Contact Person Dai

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