Structured Manufacturing Data (2026)

Micro-lens Array

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Micro-lens Array used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Micro-lens Array is characterized by the integration of Lens Body and Planarization Layer. In industrial production environments, manufacturers listed on CNFX commonly emphasize Polymer (e.g., photosensitive resin) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

An array of microscopic lenses integrated onto the surface of an image sensor pixel array to focus incident light onto the photosensitive area of each pixel.

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Product Specifications

Technical details and manufacturing context for Micro-lens Array

Definition
A micro-lens array is a critical optical component in modern image sensors, consisting of a precisely patterned grid of microscopic polymer or glass lenses. Each microlens corresponds to an individual pixel's photodiode. Its primary function is to collect and concentrate incoming light that would otherwise fall on non-photosensitive areas (like transistor circuitry and metal interconnects) and redirect it onto the active silicon photodiode region. This significantly increases the sensor's quantum efficiency, fill factor, and overall light sensitivity, which is essential for high-performance imaging in low-light conditions and for achieving higher resolution in compact camera modules.
Working Principle
Light incident on the image sensor surface first passes through the color filter array and then strikes the convex surface of each individual microlens in the array. Based on the principles of refraction, each microlens bends and focuses the light rays, concentrating them down through the planarization layer and onto the smaller, active area of the underlying photodiode. This process maximizes the amount of light captured by each pixel, improving the signal-to-noise ratio and the sensor's effective sensitivity.
Common Materials
Polymer (e.g., photosensitive resin), Silicon Dioxide (SiO₂), Silicon Nitride (Si₃N₄)
Technical Parameters
  • Pitch/Lens Diameter; typically matches the pixel pitch of the sensor (e.g., 1.0µm, 1.4µm). (µm) Per Request
Components / BOM
  • Lens Body Part
    The main convex optical element that refracts and focuses incident light.
    Material: Polymer or Silicon-based dielectric
  • Planarization Layer Part
    A flat, transparent layer beneath the microlenses that provides a smooth surface for lens formation and protects underlying layers.
    Material: Silicon Dioxide (SiO₂) or polymer

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Micro-lens Array.

micro-lens array for image sensors polymer micro-lens manufacturing silicon dioxide optical lens arrays photosensitive resin lens technology planarization layer in optical devices

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Image Sensor
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Camera Sensor (CMOS/CCD)
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Image Sensor Array
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Photodetector Array (e.g., CMOS/CCD)
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric pressure only (non-pressure rated)
other spec: Wavelength range: 400-1100 nm, Angular acceptance: ±15°
temperature: -40°C to +85°C (operational), -55°C to +125°C (storage)
Media Compatibility
✓ Visible light imaging ✓ Near-infrared sensing ✓ UV-cured optical adhesives
Unsuitable: High-energy particle radiation environments (e.g., nuclear facilities, space radiation belts)
Sizing Data Required
  • Pixel pitch (microns)
  • Required fill factor (%)
  • Target wavelength range (nm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Lens surface contamination
Cause: Accumulation of dust, oil mist, or particulates from the operating environment, leading to reduced optical clarity and performance degradation.
Mechanical misalignment
Cause: Thermal expansion/contraction, vibration, or improper handling causing displacement of individual lenses, resulting in distorted output patterns.
Maintenance Indicators
  • Visible haze, spots, or discoloration on lens surfaces under inspection lighting
  • Irregular or distorted output patterns during functional testing
Engineering Tips
  • Implement controlled cleanroom environment with positive pressure and HEPA filtration to minimize particulate contamination
  • Use precision mounting fixtures with thermal compensation materials and vibration isolation to maintain optical alignment

Compliance & Manufacturing Standards

Reference Standards
ISO 10110-5:2015 (Optics and photonics - Preparation of drawings for optical elements and systems - Part 5: Surface form tolerances) ANSI/OP 1.001-2009 (American National Standard for Optics and Optical Instruments - Preparation of drawings for optical elements and systems) DIN 3140-7:2016 (Drawing indications for optical elements and systems - Part 7: Surface form tolerances)
Manufacturing Precision
  • Lens pitch: +/- 0.5 μm
  • Surface roughness: Ra ≤ 10 nm
Quality Inspection
  • Interferometric surface profile measurement
  • Optical performance testing (MTF measurement)

Factories Producing Micro-lens Array

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What are the primary applications of micro-lens arrays in electronic manufacturing?

Micro-lens arrays are primarily used in image sensors for cameras, smartphones, and medical imaging devices to improve light sensitivity and image quality by directing more light onto each pixel's photosensitive area.

How do materials like silicon dioxide and photosensitive resin affect micro-lens array performance?

Silicon dioxide provides excellent optical clarity and durability, while photosensitive resins allow for precise, cost-effective patterning through photolithography, enabling high-resolution lens arrays with consistent optical properties.

What is the role of the planarization layer in micro-lens array construction?

The planarization layer creates a smooth, flat surface on the image sensor substrate before lens application, ensuring uniform lens alignment and optimal light focusing performance across the entire array.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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