Structured Manufacturing Data (2026)

Projection Lens Assembly

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

Optical assembly that focuses and projects structured light patterns from a projector source onto a target surface.

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Product Specifications

Technical details and manufacturing context for Projection Lens Assembly

Definition
A critical optical component within a Structured Light Projector, the Projection Lens Assembly is responsible for receiving the structured light pattern generated by the light source and modulator (e.g., DLP, LCoS) and precisely focusing it onto the target object or surface. It determines the projection's field of view, resolution, distortion characteristics, and working distance, directly impacting the accuracy of the 3D scanning or measurement system.
Working Principle
The assembly consists of multiple lens elements arranged to correct optical aberrations (like spherical, chromatic, and distortion). It collects the diverging structured light beam from the projector's image source, collimates or converges it, and forms a sharp, defined image of the pattern at the intended projection plane or volume. Its design ensures minimal pattern distortion for accurate spatial encoding.
Common Materials
Optical Glass (e.g., BK7, Fused Silica), Aluminum (for housing/barrel), Plastic (for specific lens elements or mounts)
Technical Parameters
  • Focal Length; determines the projection field of view and working distance relative to the image sensor size. (mm) Customizable
Components / BOM
  • Lens Elements Part
    Refract light to focus the image and correct optical aberrations (spherical, chromatic, distortion).
    Material: Optical Glass/Plastic
  • Lens Barrel/Housing
    Precisely holds and aligns all lens elements along the optical axis; provides mechanical stability and mounting interface.
    Material: Aluminum/Engineering Plastic
  • Aperture Stop Part
    Controls the amount of light passing through the lens and influences depth of field.
    Material: Steel/Aluminum
  • Mounting Flange Part
    Provides the standardized mechanical interface (e.g., C-mount, F-mount) to attach the assembly to the projector body.
    Material: Stainless Steel/Aluminum

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Projection Lens Assembly.

structured light projection lens assembly optical lens assembly for projectors precision projection lens components industrial projection optics assembly custom projection lens barrel housing

Applied To / Applications

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

Structured Light Projector
View system integration details
3D Optical Sensor Head
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 1.5 bar
other spec: Max humidity: 85% RH non-condensing
temperature: -20°C to +80°C
Media Compatibility
✓ Clean air environments ✓ Controlled laboratory atmospheres ✓ Dry industrial enclosures
Unsuitable: High particulate/dust environments
Sizing Data Required
  • Projector source wavelength (nm)
  • Required projection distance (mm)
  • Desired pattern size/field of view (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Optical surface contamination/degradation
Cause: Accumulation of dust, oil mist, or chemical residues from the environment or adjacent components, leading to reduced light transmission, scattering, or focal point distortion.
Mechanical misalignment or loosening
Cause: Vibration from motors or conveyors, thermal cycling causing differential expansion, or improper handling during maintenance, resulting in loss of precise optical alignment and degraded image quality or focus.
Maintenance Indicators
  • Visible haze, streaks, or particulate deposits on lens surfaces when inspected with a bright light at an angle.
  • Audible rattling or clicking from the assembly during machine operation, indicating loose mounting hardware or internal components.
Engineering Tips
  • Implement a controlled, clean environment (e.g., positive pressure, HEPA filtration) around the assembly and use only approved, lint-free wipes and optical-grade cleaners for any manual cleaning.
  • Establish a vibration monitoring program on supporting structures and schedule periodic optical alignment checks using laser or autocollimator tools, following a torque procedure for all fasteners.

Compliance & Manufacturing Standards

Reference Standards
ISO 10110-7:2017 - Optical components and systems - Surface imperfection tolerances ANSI/OPEI B175.1-2017 - Safety requirements for optical instruments DIN 3140-7:2018 - Optical components - Tolerances for lens assemblies
Manufacturing Precision
  • Centering tolerance: +/-0.01mm
  • Surface roughness: Ra ≤ 0.05μm
Quality Inspection
  • Interferometric surface flatness test
  • MTF (Modulation Transfer Function) performance verification

Factories Producing Projection Lens Assembly

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 key applications for this projection lens assembly?

This assembly is designed for structured light projection systems used in 3D scanning, metrology, machine vision, and industrial inspection applications where precise pattern projection is required.

What materials are used in the lens elements and why?

Lens elements are made from optical-grade materials like BK7 or fused silica glass for superior light transmission and minimal distortion. Some elements may use specialized plastics for weight reduction or cost optimization in non-critical applications.

Can this lens assembly be customized for specific projection requirements?

Yes, we offer customization options including different focal lengths, aperture sizes, mounting configurations, and specialized coatings to optimize performance for specific wavelengths or environmental conditions.

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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