INDUSTRY COMPONENT

Protective Window

Transparent protective barrier for machine vision systems that shields optical components while maintaining visual clarity.

Component Specifications

Definition
A specialized transparent component installed on detection heads or apertures of industrial machines to protect sensitive optical elements (cameras, lenses, sensors) from environmental contaminants, mechanical impacts, and chemical exposure while allowing unimpeded visual or optical signal transmission for inspection, measurement, or monitoring processes.
Working Principle
Operates as a physical barrier that transmits light or specific wavelengths with minimal distortion while blocking particulate matter, liquids, and mechanical contact. Maintains optical clarity through material properties and surface treatments, often incorporating anti-reflective, anti-fog, or scratch-resistant coatings to preserve system accuracy.
Materials
Polycarbonate (impact resistance), tempered glass (chemical resistance), acrylic (clarity), or specialized optical polymers; often with hard coatings (SiO2, diamond-like carbon) and anti-reflective multilayer coatings; thickness typically 3-12mm with specific optical transmission >90% at relevant wavelengths.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Flatness<0.1mm over 100mm
Coating TypeAnti-reflective, anti-fog, hydrophobic
Surface Hardness≥6H pencil hardness
Impact ResistanceIK08/IK10 rating
Temperature Range-30°C to +120°C
Thickness Tolerance±0.2mm
Optical Transmission>92% at 400-700nm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 13849-1, ISO 14119, DIN EN 1679, DIN 58196

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Optical distortion from scratches
  • Coating degradation reducing transmission
  • Thermal expansion causing misalignment
  • Chemical attack on polymer materials
  • Condensation/fogging in humid environments
FMEA Triads
Trigger: Abrasive particulate accumulation on surface
Failure: Progressive scratching reduces optical clarity and measurement accuracy
Mitigation: Implement automated cleaning systems, use harder coating materials, establish regular inspection protocols
Trigger: Chemical exposure to cleaning agents or process chemicals
Failure: Material degradation, coating delamination, or permanent staining
Mitigation: Select chemically resistant materials (tempered glass for harsh chemicals), validate cleaning procedures, implement protective shutters when not in use

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Optical transmission tolerance ±2%, thickness tolerance ±0.2mm, flatness <0.1mm/100mm, coating adhesion >5B per ASTM D3359
Test Method
ASTM D1003 for light transmission, ISO 9211-4 for environmental durability, MIL-C-48497 for coating adhesion, EN 60068-2-78 for damp heat testing

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Protective Window

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Yasi Optics
Sichuan, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

How often should protective windows be replaced in industrial environments?

Replacement frequency depends on environmental conditions: typically 6-24 months in clean environments, 1-6 months in harsh conditions with abrasives or chemicals. Regular inspection for scratches, haze, or coating degradation determines replacement timing.

Can protective windows affect measurement accuracy in vision systems?

Properly specified windows have minimal impact (<0.1% distortion) when maintained clean and undamaged. Issues arise from scratches, contamination, or improper material selection causing refraction errors. Anti-reflective coatings reduce measurement errors from internal reflections.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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