---
title: "Housing/Window"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:HOUSINGWINDOW"
  data_integrity_hash: "185d5082b4fd653274d3c56b2e144afa"
  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:HOUSINGWINDOW"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/housingwindow.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/housingwindow"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150°C ambient temperature, 0-100% relative humidity (non-condensing), 0.1-1.5 bar atmospheric pressure"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 200
    unit: "°C"
    consequence: "Germanium window substrate experiences thermal expansion coefficient mismatch (5.7×10⁻⁶/K) with aluminum housing (23×10⁻⁶/K), causing seal failure at ΔT&gt;240K. Anti-reflection coating delaminates at 150°C due to CTE mismatch with ZnS coating (7.0×10⁻⁶/K)."
fmea_matrix_quantitative:
  - node_1:
      trigger: "Cyclic thermal stress from 40°C/min heating/cooling rates"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Kovar alloy (5.3×10⁻⁶/K CTE) transition ring between germanium and aluminum, active temperature ramp control at &lt;10°C/min"
  - node_2:
      trigger: "Abrasive particulate contamination &gt;ISO 14644-1 Class 5 (≥0.5μm particles)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Positive pressure purge system at 1.2 bar with 0.3μm HEPA filtration, mechanical labyrinth seal with 5μm clearance"
bom_nodes:
  window-frame:
    type: "component"
    urn: "URN:CNFX:ME:WINDOW_FRAME"
    interface_type: "physical-logic-coupled"
  mounting-flange:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGE"
    interface_type: "physical-logic-coupled"
  sealing-gasket:
    type: "component"
    urn: "URN:CNFX:ME:SEALING_GASKET"
    interface_type: "physical-logic-coupled"
  anti-reflection-coating:
    type: "component"
    urn: "URN:CNFX:ME:ANTI_REFLECTION_COATING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 10077-1:2017 THERMAL PERFORMANCE OF WINDOWS, DOORS AND SHUTTERS"
    scope: "Verified Engineering Specification"
  - standard: "EN 14351-1:2006+A2:2016 WINDOWS AND DOORS - PRODUCT STANDARD, PERFORMANCE CHARACTERISTICS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/housingwindow.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "7db32844049f4e97f61709f50a6183eaaeb9fa4fc0d47627f1a1b40d250b0968"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Housing/Window

## 1. Technical Definition
Protective enclosure and optical interface component for infrared detectors

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150°C ambient temperature, 0-100% relative humidity (non-condensing), 0.1-1.5 bar atmospheric pressure**. Failure boundary: **Window transmission drops below 90% at 8-14μm wavelength, seal integrity fails at 200°C or -40°C thermal cycling, condensation forms at dew point differential &gt;5°C**, Mechanism: **Germanium window substrate experiences thermal expansion coefficient mismatch (5.7×10⁻⁶/K) with aluminum housing (23×10⁻⁶/K), causing seal failure at ΔT&gt;240K. Anti-reflection coating delaminates at 150°C due to CTE mismatch with ZnS coating (7.0×10⁻⁶/K).**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Cyclic thermal stress from 40°C/min heating/cooling rates | 8 | Hermetic seal fracture at brazed interface, 5×10⁻⁸ mbar·L/s leak rate | Kovar alloy (5.3×10⁻⁶/K CTE) transition ring between germanium and aluminum, active temperature ramp control at &lt;10°C/min |
| Abrasive particulate contamination &gt;ISO 14644-1 Class 5 (≥0.5μm particles) | 8 | Surface scattering loss increases noise equivalent temperature difference (NETD) to &gt;50mK | Positive pressure purge system at 1.2 bar with 0.3μm HEPA filtration, mechanical labyrinth seal with 5μm clearance |

## 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**: **Infrared Calibration System**, **Clean Room Assembly Station**, **Optical Coating Deposition System**  
**Downstream Applications**: Thermal Imaging Cameras, Night Vision Devices, Gas Detection Sensors  

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

### Q: What materials are available for the optical window in this housing?
**A**: Our housing/window components are available with Germanium, Zinc Selenide (ZnSe), or Silicon optical materials, each optimized for specific infrared wavelength ranges and environmental conditions.

### Q: How does the anti-reflection coating improve detector performance?
**A**: The anti-reflection coating minimizes light loss at the optical interface, increasing transmission efficiency and reducing ghost images, which enhances signal-to-noise ratio and measurement accuracy in infrared detection systems.

### Q: What sealing options are available for environmental protection?
**A**: We provide hermetic sealing with specialized gaskets and mounting flanges that protect sensitive infrared detectors from moisture, dust, and atmospheric contaminants, ensuring reliable operation in demanding industrial environments.

## 6. Manufacturing Compliance
- ISO 10077-1:2017 THERMAL PERFORMANCE OF WINDOWS, DOORS AND SHUTTERS
- EN 14351-1:2006+A2:2016 WINDOWS AND DOORS - PRODUCT STANDARD, PERFORMANCE CHARACTERISTICS

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

### 🌐 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**: HOUSINGWINDOW | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: db96ea5e
