---
title: "Lens Barrel/Housing"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:LENS_BARRELHOUSING"
  data_integrity_hash: "08f4f9a51b8849942fe8f6b825a29318"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:LENS_BARRELHOUSING"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/lens-barrelhousing.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/lens-barrelhousing"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150°C temperature, 0-100% relative humidity, 0-50g vibration acceleration"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 180
    unit: "Hz"
    consequence: "Coefficient of thermal expansion mismatch between aluminum housing (23.1×10⁻⁶/°C) and glass lenses (8.5×10⁻⁶/°C) causing mechanical stress; hygroscopic absorption in polymer components following Fick's second law; structural resonance at natural frequency causing fatigue crack propagation per Paris' law"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Thermal cycling between -40°C and 85°C at 10°C/min rate"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Thermal expansion compensation using Invar alloy (1.2×10⁻⁶/°C CTE) spacer rings with finite element analysis optimization"
  - node_2:
      trigger: "Cyclic torsional loading at 5Nm torque, 100Hz frequency"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Double-start ACME thread design with 0.15mm root radius, hardened to 45HRC, analyzed per VDI 2230 bolted joint standard"
bom_nodes:
  lens-seat:
    type: "component"
    urn: "URN:CNFX:ME:LENS_SEAT"
    interface_type: "physical-logic-coupled"
  retaining-ring:
    type: "component"
    urn: "URN:CNFX:ME:RETAINING_RING"
    interface_type: "physical-logic-coupled"
  mounting-flange:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGE"
    interface_type: "physical-logic-coupled"
  light-baffle:
    type: "component"
    urn: "URN:CNFX:ME:LIGHT_BAFFLE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 10110-7:2017 - SURFACE IMPERFECTION TOLERANCES"
    scope: "Verified Engineering Specification"
  - standard: "ANSI Z80.1-2015 - OPHTHALMIC LENSES - PRESCRIPTION REQUIREMENTS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 3140-7:2016 - OPTICAL COMPONENTS - TOLERANCES FOR CENTERING"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/lens-barrelhousing.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "c7d15fb849966e23a8fb5c0dea5b49e5e4959e78afaa685eb7777e90a6dd32bd"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Lens Barrel/Housing

## 1. Technical Definition
The structural component that holds and aligns optical lenses within an optical system.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150°C temperature, 0-100% relative humidity, 0-50g vibration acceleration**. Failure boundary: **Thermal expansion mismatch exceeding 15μm displacement, humidity-induced swelling exceeding 0.5% dimensional change, resonant vibration at 120-180Hz frequency range**, Mechanism: **Coefficient of thermal expansion mismatch between aluminum housing (23.1×10⁻⁶/°C) and glass lenses (8.5×10⁻⁶/°C) causing mechanical stress; hygroscopic absorption in polymer components following Fick's second law; structural resonance at natural frequency causing fatigue crack propagation per Paris' law**.

### 2.1 Analytical Physics Model
Governed by the **Rayleigh Resolution Criterion**:

> **Primary Equation**: $d = \frac{0.61 \lambda}{NA}$  
> **Engineering Impact**: Defines the theoretical limit of machine vision systems.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| \lambda | Wavelength | Engineering Constant |
| NA | Numerical Aperture | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Thermal cycling between -40°C and 85°C at 10°C/min rate | 8 | Lens misalignment exceeding 0.01° angular deviation | Thermal expansion compensation using Invar alloy (1.2×10⁻⁶/°C CTE) spacer rings with finite element analysis optimization |
| Cyclic torsional loading at 5Nm torque, 100Hz frequency | 8 | Thread stripping at M42×1mm mounting interface | Double-start ACME thread design with 0.15mm root radius, hardened to 45HRC, analyzed per VDI 2230 bolted joint standard |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Machining Center**, **Coordinate Measuring Machine**, **Optical Alignment Station**  
**Downstream Applications**: Camera Modules, Microscope Objectives, Laser Scanning Systems  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are best for lens barrels in high-temperature applications?
**A**: For high-temperature environments, engineering plastics like PEEK or Ultem offer excellent thermal stability and resistance, while stainless steel provides durability and corrosion resistance.

### Q: How does a lens barrel ensure proper optical alignment?
**A**: A lens barrel maintains precise alignment through components like the lens seat and retaining ring, which securely position lenses along the optical axis, minimizing deviations and ensuring optimal system performance.

### Q: Can lens barrels be customized for specific optical systems?
**A**: Yes, lens barrels can be custom-designed with specific dimensions, materials, and BOM components (e.g., mounting flanges, light baffles) to meet the exact requirements of computer, electronic, or optical product applications.

## 6. Manufacturing Compliance
- ISO 10110-7:2017 - SURFACE IMPERFECTION TOLERANCES
- ANSI Z80.1-2015 - OPHTHALMIC LENSES - PRESCRIPTION REQUIREMENTS
- DIN 3140-7:2016 - OPTICAL COMPONENTS - TOLERANCES FOR CENTERING

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Lens Barrel/Housing](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/lens-barrelhousing)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: LENS_BARRELHOUSING | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: f0995306
