---
title: "Lens Holding Fixture"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:LENS_HOLDING_FIXTURE"
  data_integrity_hash: "1c867249bc5db1d54dbe0a333bbed84e"
  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_HOLDING_FIXTURE"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/lens-holding-fixture.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/lens-holding-fixture"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-5.0 NÂ·m clamping torque, 0.01-0.05 mm positional tolerance, 20-80Â°C temperature range"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 8.0
    unit: "NÂ"
    consequence: "Yield strength of aluminum 6061-T6 (276 MPa) exceeded at 8.0 NÂ·m torque, thermal expansion coefficient mismatch (23.6 Î¼m/mÂ·Â°C for aluminum vs 8.6 Î¼m/mÂ·Â°C for optical glass) causing stress concentrations"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Torque calibration drift exceeding Â±0.2 NÂ·m from setpoint"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrated piezoelectric torque sensors with 0.01 NÂ·m resolution and closed-loop feedback control"
  - node_2:
      trigger: "Thermal gradient of 15Â°C/mm across fixture body"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Active thermal management with Peltier elements maintaining Â±0.5Â°C uniformity"
bom_nodes:
  clamping-jaws-collet:
    type: "component"
    urn: "URN:CNFX:ME:CLAMPING_JAWS_COLLET"
    interface_type: "physical-logic-coupled"
  fixture-body-base:
    type: "component"
    urn: "URN:CNFX:ME:FIXTURE_BODY_BASE"
    interface_type: "physical-logic-coupled"
  actuation-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:ACTUATION_MECHANISM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 10110-7:2016 (OPTICS AND PHOTONICS - PREPARATION OF DRAWINGS FOR OPTICAL ELEMENTS AND SYSTEMS - PART 7: SURFACE IMPERFECTION TOLERANCES)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B46.1-2019 (SURFACE TEXTURE, SURFACE ROUGHNESS, WAVINESS, AND LAY)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 3140-7:2017 (DIMENSIONING AND TOLERANCING OF OPTICAL COMPONENTS - PART 7: MOUNTING OF OPTICAL COMPONENTS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/lens-holding-fixture.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "9b7526e06350d3613cf34a36f3d8b38d036d317d6a1e95d601878e0d345e8d24"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Lens Holding Fixture

## 1. Technical Definition
A precision mechanical component designed to securely hold and position optical lenses during the polishing process.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-5.0 NÂ·m clamping torque, 0.01-0.05 mm positional tolerance, 20-80Â°C temperature range**. Failure boundary: **Clamping torque exceeds 8.0 NÂ·m causing lens microfractures, positional deviation exceeds 0.1 mm causing polishing asymmetry, temperature exceeds 120Â°C causing thermal expansion mismatch**, Mechanism: **Yield strength of aluminum 6061-T6 (276 MPa) exceeded at 8.0 NÂ·m torque, thermal expansion coefficient mismatch (23.6 Î¼m/mÂ·Â°C for aluminum vs 8.6 Î¼m/mÂ·Â°C for optical glass) causing stress concentrations**.

### 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 |
| :--- | :--- | :--- | :--- |
| Torque calibration drift exceeding Â±0.2 NÂ·m from setpoint | 8 | Uneven lens pressure distribution causing asymmetric material removal | Integrated piezoelectric torque sensors with 0.01 NÂ·m resolution and closed-loop feedback control |
| Thermal gradient of 15Â°C/mm across fixture body | 8 | Differential expansion causing lens misalignment exceeding 0.05 mm | Active thermal management with Peltier elements maintaining Â±0.5Â°C uniformity |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Actuation Mechanism](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/actuation-mechanism.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Optical Polishing Machine**, **Precision Cleaning System**, **Lens Measurement Interferometer**  
**Downstream Applications**: Camera Lenses, Microscope Objectives, Laser Optics  

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

### Q: What materials are available for the lens holding fixture?
**A**: Our lens holding fixtures are available in stainless steel for durability, aluminum alloy for lightweight applications, and precision ceramic for superior chemical resistance and thermal stability in demanding optical manufacturing environments.

### Q: How does the fixture secure lenses during polishing?
**A**: The fixture uses a precision actuation mechanism that operates clamping jaws or a collet system to securely hold optical lenses without causing damage or distortion, ensuring consistent positioning throughout the polishing process.

### Q: What components make up the lens holding fixture BOM?
**A**: The bill of materials includes three main components: the actuation mechanism for precise control, clamping jaws or collet for secure lens holding, and the fixture body/base that provides structural stability and mounting capability.

## 6. Manufacturing Compliance
- ISO 10110-7:2016 (OPTICS AND PHOTONICS - PREPARATION OF DRAWINGS FOR OPTICAL ELEMENTS AND SYSTEMS - PART 7: SURFACE IMPERFECTION TOLERANCES)
- ANSI/ASME B46.1-2019 (SURFACE TEXTURE, SURFACE ROUGHNESS, WAVINESS, AND LAY)
- DIN 3140-7:2017 (DIMENSIONING AND TOLERANCING OF OPTICAL COMPONENTS - PART 7: MOUNTING OF OPTICAL COMPONENTS)

---
### ðŸ› ï¸ Engineering Resource Access
ðŸ”— **[Full Specification: Lens Holding Fixture](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/lens-holding-fixture)**

### ðŸŒ Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: LENS_HOLDING_FIXTURE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 9dd81b8c
