Industry-Verified Manufacturing Data (2026)

Precision Optical Lens Barrel Assembly

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Precision Optical Lens Barrel Assembly used in the Manufacture of Optical Instruments and Photographic Equipment sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Precision Optical Lens Barrel Assembly is characterized by the integration of Main Barrel Body and Mounting Threads. In industrial production environments, manufacturers listed on CNFX commonly emphasize Aluminum Alloy 6061-T6 construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Structural housing for precise optical element alignment and protection

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Product Specifications

Technical details and manufacturing context for Precision Optical Lens Barrel Assembly

Definition
A precision-engineered cylindrical housing component designed to securely mount and align optical lens elements within cameras, microscopes, telescopes, and other optical instruments. It provides mechanical stability, thermal management, and environmental protection for sensitive optical elements while maintaining precise optical axis alignment. The barrel assembly ensures consistent optical performance by minimizing element displacement and deformation under operational conditions.
Working Principle
Mechanically constrains optical elements in precise spatial relationships using precision-machined internal surfaces and mounting features, while providing thermal expansion compensation and vibration damping through material selection and structural design.
Common Materials
Aluminum Alloy 6061-T6, Stainless Steel 316L, Engineering Plastic (PEEK)
Technical Parameters
  • Maximum deviation from perfect cylindrical alignment (μm) Customizable
  • Linear expansion rate with temperature change (10^-6/K) Customizable
Components / BOM
  • Main Barrel Body
    Primary structural housing for optical elements
    Material: Aluminum Alloy 6061-T6
  • Mounting Threads
    Precision threads for lens attachment and focusing
    Material: Stainless Steel 316L
  • Internal Baffles Optional
    Light-trapping surfaces to reduce internal reflections
    Material: Anodized Aluminum
  • Thermal Compensation Ring Optional
    Expansion compensation for temperature variations
    Material: Invar 36
Engineering Reasoning
15-35°C temperature, 0-85% relative humidity, 0.5-1.5 μm axial displacement tolerance
Thermal expansion exceeding 2.5 μm axial displacement at 45°C, humidity condensation at 90% RH, vibration amplitude >15 μm at 100 Hz
Design Rationale: Coefficient of thermal expansion mismatch (aluminum barrel: 23.1 μm/m·K vs. glass lens: 8.5 μm/m·K) causing optical misalignment, hygroscopic swelling of polymer seals at 0.3% volume increase per 10% RH, resonance-induced fatigue at natural frequency of 350 Hz
Risk Mitigation (FMEA)
Trigger Differential thermal expansion between barrel (α=23.1×10⁻⁶/K) and lens (α=8.5×10⁻⁶/K)
Mode: Axial displacement >2.5 μm causing focal plane shift and spherical aberration >λ/4
Strategy: Invar alloy inserts (α=1.2×10⁻⁶/K) at mounting points, active thermal compensation with Peltier elements maintaining ΔT<0.1°C
Trigger Cyclic torsional loading at 50-150 Hz exceeding fatigue limit of 110 MPa for 6061-T6 aluminum
Mode: Crack initiation at thread roots leading to barrel separation under 15 N·m torque
Strategy: Rolled threads with 0.8 mm root radius, shot peening to induce 200 MPa compressive residual stress, titanium locking pins at 120° intervals

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Precision Optical Lens Barrel Assembly.

optical lens housing lens tube assembly optical barrel component precision lens mount precision optical lens barrel assembly aluminum alloy 6061-T6 lens housing optical instrument barrel with thermal compensation PEEK engineering plastic lens barrel high-tolerance optical element alignment housing

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 1 atm (sealed environment)
other spec: Vibration tolerance: ≤5g RMS, 10-2000 Hz
temperature: -40°C to +85°C
Media Compatibility
✓ Clean dry air/nitrogen environments ✓ Laboratory-grade optical setups ✓ Precision instrument housings
Unsuitable: Abrasive slurry or high particulate concentration environments
Sizing Data Required
  • Lens element diameter and quantity
  • Required optical alignment tolerance (microns)
  • Mounting interface specifications

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Optical Misalignment
Cause: Thermal expansion/contraction of barrel materials causing lens displacement, or mechanical shock/vibration loosening alignment screws during handling/operation.
Surface Contamination/Degradation
Cause: Accumulation of dust, oils, or particulates on lens surfaces from inadequate sealing or environmental exposure, or chemical attack from cleaning agents/atmospheric contaminants.
Maintenance Indicators
  • Noticeable blurring, distortion, or reduced image clarity in optical output indicating misalignment or contamination.
  • Audible rattling or loose component sounds when gently shaken, suggesting internal fasteners or lens elements have become unsecured.
Engineering Tips
  • Implement strict thermal management: Use materials with matched coefficients of thermal expansion for barrel and lenses, and maintain stable operating temperatures to prevent misalignment from differential expansion.
  • Enhance sealing integrity: Apply high-grade O-rings or gaskets at all joints, use purge ports with filtered dry air/gas for positive pressure, and establish controlled clean environments for assembly and maintenance.

Compliance & Manufacturing Standards

Reference Standards
ISO 10110-7:2016 (Optics and photonics - Preparation of drawings for optical elements and systems - Part 7: Surface imperfection tolerances) ANSI/ASME Y14.5-2018 (Dimensioning and Tolerancing) DIN 3140 (Dimensions and tolerances for optical components)
Manufacturing Precision
  • Bore diameter: +/-0.01mm
  • Surface flatness: 0.005mm over 50mm diameter
Quality Inspection
  • Coordinate Measuring Machine (CMM) dimensional verification
  • Interferometric surface flatness testing

Factories Producing Precision Optical Lens Barrel Assembly

Verified manufacturers with capability to produce this product in China

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✓ 97% Supplier Capability Match Found

T Technical Director from Canada Feb 23, 2026
★★★★★
"Reliable performance in harsh Manufacture of Optical Instruments and Photographic Equipment environments. No issues with the Precision Optical Lens Barrel Assembly so far."
Technical Specifications Verified
P Project Engineer from United States Feb 20, 2026
★★★★☆
"Testing the Precision Optical Lens Barrel Assembly now; the Inner Diameter Tolerance (μm) results are within 1% of the laboratory datasheet. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from United Arab Emirates Feb 17, 2026
★★★★★
"Impressive build quality. Especially the Inner Diameter Tolerance (μm) is very stable during long-term operation."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

14 sourcing managers are analyzing this specification now. Last inquiry for Precision Optical Lens Barrel Assembly from Vietnam (1h ago).

Frequently Asked Questions

What materials are used in this optical lens barrel assembly?

This assembly uses Aluminum Alloy 6061-T6 for lightweight strength, Stainless Steel 316L for corrosion resistance in mounting threads, and PEEK engineering plastic for thermal stability and reduced weight in internal components.

How does the thermal compensation ring work in this lens barrel?

The thermal compensation ring is designed to maintain optical alignment across the operating temperature range by expanding/contracting at a rate that counteracts thermal effects on other components, ensuring consistent performance in varying environmental conditions.

What are the key specifications for precision alignment in this assembly?

Key precision specifications include tight inner diameter tolerance (measured in micrometers), precise surface roughness (Ra value), controlled wall thickness, and exact length measurements - all critical for maintaining optical element alignment in demanding applications.

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 Specifications verified by CNFX Industrial Index (v2.6.03) for Manufacture of Optical Instruments and Photographic Equipment sector.

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