INDUSTRY COMPONENT

Optical Lens/Diffuser

Optical lens/diffuser for LED illumination systems that controls light distribution and quality.

Component Specifications

Definition
An optical component in LED illumination systems designed to manipulate light through refraction, diffusion, or scattering to achieve specific illumination patterns, uniformity, and intensity. It precisely controls beam angles, reduces glare, and enhances visual comfort by modifying the spatial distribution of light emitted from LED sources.
Working Principle
Operates on principles of geometric optics and light scattering. Lenses use refraction to focus or spread light, while diffusers employ surface structures or embedded particles to scatter light, creating uniform illumination. Common designs include Fresnel lenses for compact focusing, micro-lens arrays for precise beam shaping, and opal or prismatic diffusers for soft, even light distribution.
Materials
Typically made from optical-grade polymers (PMMA, polycarbonate, silicone) or glass. Materials are selected for high light transmission (≥90%), UV resistance, thermal stability (up to 120°C), and minimal yellowing. Coatings may include anti-reflective, anti-fog, or hard coatings for durability.
Technical Parameters
  • Beam Angle 15° to 120°
  • Haze Level 10% to 90%
  • Surface Roughness Ra ≤ 0.05 μm
  • Thickness Tolerance ±0.1 mm
  • Operating Temperature -40°C to +85°C
  • Transmission Efficiency ≥92%
Standards
ISO 10110, ISO 13695, DIN 58196

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Optical Lens/Diffuser.

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Optical degradation due to UV exposure
  • Thermal expansion causing focus shift
  • Surface scratching reducing efficiency
  • Material yellowing over time
FMEA Triads
Trigger: Poor material selection or manufacturing defects
Failure: Reduced light transmission or uneven diffusion
Mitigation: Implement strict material certification and optical testing (e.g., spectrophotometry) during production.
Trigger: Inadequate thermal management in LED assembly
Failure: Lens warping or delamination
Mitigation: Design with thermal expansion coefficients matching LED modules and use high-temperature adhesives.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Angular tolerance ±1°, dimensional tolerance ±0.05 mm per ISO 10110
Test Method
Light distribution testing per IESNA LM-79, photometric analysis using goniophotometers

Buyer Feedback

★★★★☆ 4.8 / 5.0 (20 reviews)

"The technical documentation for this Optical Lens/Diffuser is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the Optical Lens/Diffuser so far."

"Testing the Optical Lens/Diffuser now; the technical reliability results are within 1% of the laboratory datasheet."

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Frequently Asked Questions

What is the difference between a lens and a diffuser in LED systems?

A lens primarily focuses or spreads light through refraction to control beam angle, while a diffuser scatters light to reduce glare and create uniform illumination by breaking up direct light paths.

How do I choose between PMMA and polycarbonate for an optical lens?

PMMA offers higher clarity and UV resistance but lower impact strength; polycarbonate provides better durability and heat resistance but may require coatings for UV protection. Choose based on environmental conditions and mechanical requirements.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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