Shanghai Longway Special Glass Co., Ltd.
                                                                                                           
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High Precision Borosilicate Glass Aspheric Lens for Indoor LED Lighting

Price Negotiable
Price: NEGOTIATION
MOQ: 1000 pieces
Delivery Time: Negotiable
Brand: LONGWAY
Product Description



High Precision Borosilicate Glass Aspheric Lens for Indoor LED Lighting



1. Material Composition:

  • Optical-Grade Borosilicate Glass: High-purity material (e.g., Schott B270) with low thermal expansion (3.3 × 10⁻⁶/K) and exceptional homogeneity.

  • Aspheric Surface Design: Precisely polished non-spherical curvature to eliminate spherical aberration and reduce lens count in optical assemblies.


2. Key Properties:

  • High Light Transmission: >92% visible light transmission with minimal scatter and distortion.

  • Thermal Stability: Withstands LED operating temperatures (up to 150°C) without deformation or performance loss.

  • Precision Tolerance: Surface accuracy < λ/4 @ 632.8nm and roughness < 5Å for sharp focus control.

  • Chemical Resistance: Immune to humidity, household chemicals, and UV degradation.


3. Core Functions:

  • Beam Shaping: Converts raw LED output into uniform, glare-free illumination with precise field angles (e.g., 15°-120°).

  • Aberration Correction: Aspheric design eliminates spherical and comatic distortions for edge-to-edge clarity.

  • Efficiency Optimization: Maximizes lumen output by reducing optical losses compared to traditional spherical lenses.


4. Applications:

  • Commercial LED Lighting: Downlights, track lights, and panel lights for offices, retail spaces, and museums.

  • Architectural Lighting: Precision accent lighting, wall washers, and decorative luminaires.

  • Smart Lighting Systems: Lenses for tunable-white and human-centric lighting applications.

  • High-End Residential:
    Recessed lighting and premium pendant fixtures requiring precise light control.


Item LED aspheric 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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