INDUSTRY COMPONENT

Optical Window

Transparent optical component for light transmission in polycarbonate lens housings

Component Specifications

Definition
An optical window is a precision-engineered transparent component integrated into polycarbonate injection molded lens housings to allow controlled light transmission while protecting internal optical elements from environmental contaminants, mechanical damage, and UV degradation. It maintains optical clarity and structural integrity under operational stresses.
Working Principle
Operates by transmitting specific wavelengths of light with minimal distortion, reflection, or absorption while providing a sealed barrier against dust, moisture, and physical impacts. The window's optical properties are engineered to match the housing's refractive index for optimal light coupling.
Materials
Polycarbonate (PC), optical-grade, with UV-stabilized additives; alternatives include PMMA (acrylic) or glass for specialized applications. Surface coatings: anti-reflective (AR), hard coat, or hydrophobic treatments.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Diameter10-50 mm (customizable)
Flatnessλ/4 at 632.8 nm
Thickness1.5-3.0 mm
Transmittance>90% at 400-700 nm
Surface QualityScratch-dig 80-50 per MIL-PRF-13830B
Operating Temperature-40°C to +120°C

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 10110, ISO 9022, DIN 3140, MIL-PRF-13830B

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Scratches or surface degradation reducing transmittance
  • Thermal expansion causing seal failure
  • UV-induced yellowing over time
  • Improper installation leading to optical misalignment
FMEA Triads
Trigger: Inadequate UV stabilization in material
Failure: Yellowing and reduced optical clarity
Mitigation: Use UV-stabilized polycarbonate and apply protective coatings; conduct accelerated aging tests.
Trigger: Poor injection molding process control
Failure: Internal stresses or bubbles affecting optical properties
Mitigation: Optimize molding parameters (temperature, pressure, cooling); implement inline optical inspection.
Trigger: Mechanical impact during handling or operation
Failure: Cracks or scratches compromising integrity
Mitigation: Design with protective bezels; use hard coat coatings; follow proper handling protocols.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±0.1 mm on dimensions, ±0.05 mm on thickness
Test Method
Optical transmittance measured via spectrophotometer; surface inspection per MIL-PRF-13830B; environmental testing per ISO 9022 for humidity and temperature cycling.

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 Optical Window

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

ECOPTIK
Shenzhen, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
LZY Photonics
Jiangsu, 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

What is the primary function of an optical window in a lens housing?

To transmit light efficiently while sealing and protecting internal optical elements from environmental factors like dust, moisture, and UV radiation.

Why is polycarbonate commonly used for optical windows?

Polycarbonate offers high impact resistance, good optical clarity, lightweight properties, and ease of injection molding, making it cost-effective for durable optical applications.

How does surface coating enhance optical window performance?

Coatings like anti-reflective layers reduce light loss and glare, hard coats improve scratch resistance, and hydrophobic treatments repel water and contaminants.

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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