---
title: "Coupling Iris"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:COUPLING_IRIS"
  data_integrity_hash: "9bf2b7e37156f9e54ca684322dfbf2be"
  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:COUPLING_IRIS"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/coupling-iris.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/coupling-iris"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-5.0 mm aperture diameter, 400-1100 nm wavelength, 0.1-10 mW input power"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 20
    unit: "nm"
    consequence: "Thermal expansion mismatch between iris blade materials (stainless steel vs. invar) causing mechanical binding, exceeding yield strength at stress concentration points"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Laser power density &gt;10 kW/cm² exceeding material damage threshold"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement optical power density limiter with real-time beam profiling feedback"
  - node_2:
      trigger: "Ambient humidity &gt;60% RH causing capillary condensation"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Apply hydrophobic DLC coating (contact angle &gt;110°) with dry nitrogen purge system"
bom_nodes:
  iris-blades:
    type: "component"
    urn: "URN:CNFX:ME:IRIS_BLADES"
    interface_type: "physical-logic-coupled"
  control-ring:
    type: "component"
    urn: "URN:CNFX:ME:CONTROL_RING"
    interface_type: "physical-logic-coupled"
  mounting-flange:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5211:2017 - INDUSTRIAL VALVES - PART-TURN ACTUATOR ATTACHMENTS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B16.5:2020 - PIPE FLANGES AND FLANGED FITTINGS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 3202-1:2019 - INDUSTRIAL VALVES; FLANGED IRON VALVES; PART 1: GENERAL REQUIREMENTS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/coupling-iris.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "0759629b078c97e230ba93a3565509ac9c0288dab1beabe5ea67733639578530"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Coupling Iris

## 1. Technical Definition
Aperture component within an optical output coupler that controls beam coupling efficiency and mode matching

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-5.0 mm aperture diameter, 400-1100 nm wavelength, 0.1-10 mW input power**. Failure boundary: **Aperture deformation exceeding 50 μm from nominal position, surface roughness &gt;λ/20 (20 nm at 400 nm), temperature &gt;150°C**, Mechanism: **Thermal expansion mismatch between iris blade materials (stainless steel vs. invar) causing mechanical binding, exceeding yield strength at stress concentration points**.

### 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 |
| :--- | :--- | :--- | :--- |
| Laser power density &gt;10 kW/cm² exceeding material damage threshold | 8 | Iris blade surface ablation creating scattering centers | Implement optical power density limiter with real-time beam profiling feedback |
| Ambient humidity &gt;60% RH causing capillary condensation | 8 | Stiction between iris blades due to water meniscus formation | Apply hydrophobic DLC coating (contact angle &gt;110°) with dry nitrogen purge system |

## 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**: **Optical Alignment Station**, **Laser Beam Profiler**, **Precision Cleaning System**  
**Downstream Applications**: Fiber Optic Transceivers, Laser Diode Modules, Optical Sensors  

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

### Q: What is the primary function of a coupling iris in optical manufacturing?
**A**: A coupling iris precisely controls beam coupling efficiency and mode matching within optical output couplers by adjusting the aperture size, optimizing light transmission in computer and electronic optical systems.

### Q: Which materials are available for the coupling iris and what are their benefits?
**A**: Available in stainless steel for durability, aluminum alloy for lightweight precision, and black anodized aluminum for reduced light reflection. Each material offers specific advantages for different optical manufacturing environments.

### Q: How does the BOM components (Iris Blades, Control Ring, Mounting Flange) work together?
**A**: Iris blades form the adjustable aperture, the control ring enables precise diameter adjustments, and the mounting flange provides secure integration into optical output coupler assemblies for stable beam control.

## 6. Manufacturing Compliance
- ISO 5211:2017 - INDUSTRIAL VALVES - PART-TURN ACTUATOR ATTACHMENTS
- ANSI/ASME B16.5:2020 - PIPE FLANGES AND FLANGED FITTINGS
- DIN 3202-1:2019 - INDUSTRIAL VALVES; FLANGED IRON VALVES; PART 1: GENERAL REQUIREMENTS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Coupling Iris](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/coupling-iris)**

### 🌐 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**: COUPLING_IRIS | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: f5269f12
