---
title: "Projection Lens Assembly"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PROJECTION_LENS_ASSEMBLY"
  data_integrity_hash: "b9ccdacc4d6935b6538d65bb4a0e8063"
  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:PROJECTION_LENS_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/projection-lens-assembly.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/projection-lens-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-2.5 m focal distance, 400-700 nm wavelength, 20-40° projection angle"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 120
    unit: "°C"
    consequence: "Thermal expansion coefficient mismatch between borosilicate glass (3.25×10⁻⁶/K) and aluminum mount (23.1×10⁻⁶/K) causing mechanical stress &gt;150 MPa at interfaces"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Accumulated particulate contamination density &gt;100 particles/cm² (≥5 μm diameter)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrated HEPA filtration system maintaining ISO Class 5 cleanroom conditions at lens surface"
  - node_2:
      trigger: "Cyclic thermal loading with ΔT &gt;80°C at 0.5 Hz frequency"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Bimetallic compensation ring with Invar (1.2×10⁻⁶/K CTE) interface layer between glass and aluminum"
bom_nodes:
  lens-elements:
    type: "component"
    urn: "URN:CNFX:ME:LENS_ELEMENTS"
    interface_type: "physical-logic-coupled"
  lens-barrelhousing:
    type: "part"
    urn: "URN:CNFX:ME:LENS_BARRELHOUSING"
    interface_type: "physical-logic-coupled"
  aperture-stop:
    type: "component"
    urn: "URN:CNFX:ME:APERTURE_STOP"
    interface_type: "physical-logic-coupled"
  mounting-flange:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 10110-7:2017 - OPTICAL COMPONENTS AND SYSTEMS - SURFACE IMPERFECTION TOLERANCES"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/OPEI B175.1-2017 - SAFETY REQUIREMENTS FOR OPTICAL INSTRUMENTS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 3140-7:2018 - OPTICAL COMPONENTS - TOLERANCES FOR LENS ASSEMBLIES"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/projection-lens-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "42276f6951c3b982af05efa81f6d7c41000b1268fdfc157b29898d541665396c"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Projection Lens Assembly

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

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-2.5 m focal distance, 400-700 nm wavelength, 20-40° projection angle**. Failure boundary: **Lens surface temperature exceeding 120°C, focal shift &gt;50 μm from calibrated position, optical transmission loss &gt;15% at 550 nm**, Mechanism: **Thermal expansion coefficient mismatch between borosilicate glass (3.25×10⁻⁶/K) and aluminum mount (23.1×10⁻⁶/K) causing mechanical stress &gt;150 MPa at interfaces**.

### 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 |
| :--- | :--- | :--- | :--- |
| Accumulated particulate contamination density &gt;100 particles/cm² (≥5 μm diameter) | 8 | Diffraction pattern distortion with &gt;10% intensity variation across projected field | Integrated HEPA filtration system maintaining ISO Class 5 cleanroom conditions at lens surface |
| Cyclic thermal loading with ΔT &gt;80°C at 0.5 Hz frequency | 8 | Lens mount fatigue fracture at stress concentration points after 10⁶ cycles | Bimetallic compensation ring with Invar (1.2×10⁻⁶/K CTE) interface layer between glass and aluminum |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Lens Barrel/Housing](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/lens-barrelhousing.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Precision Optical Coating Machine**, **Laser Interferometer Measurement System**, **Clean Room Assembly Station**  
**Downstream Applications**: 3D Structured Light Scanners, Augmented Reality Headsets, Digital Projection Systems  

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

### Q: What are the key applications for this projection lens assembly?
**A**: 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.

### Q: What materials are used in the lens elements and why?
**A**: 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.

### Q: Can this lens assembly be customized for specific projection requirements?
**A**: 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.

## 6. Manufacturing Compliance
- 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

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

### 🌐 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**: PROJECTION_LENS_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 6e139d0a
