Structured Manufacturing Data (2026)

Collimating Lens

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Collimating Lens 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 Collimating Lens is characterized by the integration of Lens Element and Anti-Reflection Coating. In industrial production environments, manufacturers listed on CNFX commonly emphasize Optical Glass (e.g., N-BK7, Fused Silica) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

An optical lens that converts the divergent light from a laser diode into a parallel beam.

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Product Specifications

Technical details and manufacturing context for Collimating Lens

Definition
A collimating lens is a critical optical component within a Laser Diode Assembly. Its primary function is to take the highly divergent, non-parallel light emitted directly from the laser diode chip and reshape it into a collimated (parallel) beam. This transformation is essential for applications requiring a focused, low-divergence light source, such as in laser pointers, barcode scanners, fiber optic coupling, and various measurement and alignment systems.
Working Principle
The lens utilizes its curved surfaces (typically plano-convex or aspheric) to refract the incoming divergent rays. By precisely matching the lens's focal length to the distance from the laser diode's emission point (the virtual source), the lens bends the rays so they exit parallel to the optical axis, minimizing beam divergence.
Common Materials
Optical Glass (e.g., N-BK7, Fused Silica), Plastic (e.g., PMMA, Polycarbonate for cost-sensitive applications)
Technical Parameters
  • Focal Length - The distance from the lens at which it focuses parallel incoming light. For collimation, the laser diode is placed at this focal point. (mm) Standard Spec
Components / BOM
  • Lens Element Part
    The optical substrate (glass or plastic) with precisely ground and polished curved surfaces that performs the refraction.
    Material: Optical Glass or Optical Plastic
  • Anti-Reflection Coating Part
    A thin-film multilayer coating applied to lens surfaces to maximize transmission and minimize back-reflection at the design wavelength.
    Material: Dielectric materials (e.g., MgF2, TiO2, SiO2)
  • Lens Mount / Housing
    A mechanical barrel or holder that precisely positions and secures the lens element relative to the laser diode, often with adjustment threads.
    Material: Aluminum, Brass, or Plastic

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Collimating Lens.

collimating lens for laser diode optical glass collimating lens plastic collimating lens electronics collimating lens with anti-reflection coating collimating lens mount for optical systems

Applied To / Applications

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

Laser Diode Assembly
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Laser scanner module
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Emitter Unit
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Emitter Module
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Laser Diode Module
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Collimating Lens Assembly
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Laser Emitter Module
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Optical Lens System
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Laser Emitter
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Laser Assembly
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 1.5 atm (standard optical environment)
other spec: Wavelength range: 400-1600 nm typical, Beam divergence angle: <2 mrad after collimation
temperature: -40°C to +85°C (operational), -55°C to +125°C (storage)
Media Compatibility
✓ Laser diode emission in free-space optical systems ✓ Fiber optic coupling applications ✓ Laboratory optical bench setups
Unsuitable: High particulate or abrasive dust environments without protective housing
Sizing Data Required
  • Laser diode wavelength (nm)
  • Numerical aperture (NA) or divergence angle of source
  • Required beam diameter and collimation distance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Surface contamination and coating degradation
Cause: Accumulation of dust, oils, or particulates from the environment, combined with improper cleaning methods or exposure to corrosive atmospheres, leading to reduced optical transmission and potential permanent damage to anti-reflective coatings.
Thermal stress cracking
Cause: Rapid temperature fluctuations or localized overheating due to high-intensity light sources, poor thermal management in the housing, or exposure to direct heat sources, causing micro-fractures or complete lens failure.
Maintenance Indicators
  • Visible discoloration, haze, or dark spots on the lens surface indicating contamination or coating failure
  • Audible crackling or popping sounds during operation, suggesting thermal stress or material fatigue
Engineering Tips
  • Implement strict environmental controls with clean, temperature-stable conditions and use only manufacturer-recommended cleaning solutions and lint-free wipes to prevent surface damage
  • Install proper thermal management systems, including heat sinks or active cooling, and ensure gradual thermal cycling during startup/shutdown to minimize thermal shock

Compliance & Manufacturing Standards

Reference Standards
ISO 10110-7:2017 (Optics and photonics - Preparation of drawings for optical elements and systems - Surface imperfection tolerances) ANSI Z80.1-2015 (Ophthalmic Lenses - Prescription Requirements) DIN 3140-7:2015 (Optics and photonics - Preparation of drawings for optical elements and systems - Surface form tolerances)
Manufacturing Precision
  • Surface Figure Error: λ/4 at 632.8 nm
  • Centration: ±0.02 mm
Quality Inspection
  • Interferometric Surface Testing
  • Beam Profile Analysis

Factories Producing Collimating Lens

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 is the primary function of a collimating lens in optical systems?

A collimating lens converts divergent or converging light from a source like a laser diode into a parallel beam, essential for applications requiring precise light direction in electronics and optical manufacturing.

What materials are commonly used for collimating lenses and why?

Optical glass (e.g., N-BK7, Fused Silica) is used for high precision and durability, while plastics (e.g., PMMA, Polycarbonate) offer cost-effective solutions for less demanding applications in electronics.

How does anti-reflection coating benefit a collimating lens?

Anti-reflection coating reduces light loss and glare by minimizing reflections at the lens surfaces, improving beam quality and efficiency in optical systems for computer and electronic products.

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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