INDUSTRY COMPONENT

Lens Substrate

Lens substrate is the foundational optical element in focusing lens systems that provides structural support and precise optical surfaces.

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Component Specifications

Definition
A lens substrate is the core structural component of a focusing lens, typically made from high-purity optical materials with precisely engineered surfaces that serve as the foundation for optical coatings and final lens shaping. It determines the fundamental optical properties, mechanical stability, and thermal characteristics of the complete lens assembly.
Working Principle
The lens substrate functions as the primary optical medium that transmits and refracts light according to its geometric curvature and material refractive index. It provides the precise surface geometry required for focusing light beams, while maintaining dimensional stability under various environmental conditions to ensure consistent optical performance.
Materials
Optical glass (BK7, Fused Silica), Optical crystals (Calcium Fluoride, Zinc Selenide), Optical ceramics (Alumina, Silicon Carbide)
Technical Parameters
  • Surface Quality 40-20 Scratch-Dig
  • Refractive Index 1.45-2.4
  • Surface Flatness λ/4 @ 632.8 nm
  • Diameter Tolerance ±0.05 mm
  • Thickness Tolerance ±0.1 mm
  • Thermal Expansion Coefficient 0.5-10 × 10⁻⁶/K
Standards
ISO 10110, ISO 14997, DIN 3140, DIN 58927

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Lens Substrate.

optical lens substrate focusing lens component precision optics optical manufacturing lens base material Lens Substrate Lens Substrate in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Focusing Lens

An optical component that converges or diverges light beams to achieve precise focus within an optical system.

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Engineering Analysis

Risks & Mitigation
  • Surface contamination during handling
  • Thermal stress cracking
  • Sub-micron surface defects
  • Material inhomogeneity
  • Moisture absorption in hygroscopic materials
FMEA Triads
Trigger: Improper cleaning procedures
Failure: Surface contamination reduces optical transmission
Mitigation: Implement cleanroom handling protocols and regular surface inspection
Trigger: Thermal expansion mismatch with mounting hardware
Failure: Mechanical stress causes surface deformation
Mitigation: Use compatible materials and design thermal compensation mechanisms

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Surface accuracy within λ/10, dimensional tolerance ±0.02 mm
Test Method
Interferometry for surface measurement, spectrophotometry for material properties, coordinate measuring machines for dimensional verification

Buyer Feedback

★★★★☆ 4.7 / 5.0 (34 reviews)

"Standard OEM quality for Computer, Electronic and Optical Product Manufacturing applications. The Lens Substrate arrived with full certification."

"Great transparency on the Lens Substrate components. Essential for our Computer, Electronic and Optical Product Manufacturing supply chain."

"The Lens Substrate we sourced perfectly fits our Computer, Electronic and Optical Product Manufacturing production line requirements."

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Frequently Asked Questions

What is the difference between a lens substrate and a finished lens?

A lens substrate is the raw optical component with precisely ground surfaces but without final polishing or anti-reflective coatings, while a finished lens has all optical treatments applied and is ready for installation.

Why is material purity important for lens substrates?

High material purity ensures consistent refractive index, minimal light scattering, and reduced absorption, which are critical for maintaining optical performance and minimizing energy loss in focusing systems.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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