Lens/Optical Window: Diameter 10-200 mm, Thickness 1-20 mm

Component Specifications

Definition

A lens or optical window is a transparent optical component designed to transmit, focus, or protect light in industrial applications. In light source and magnetic field generator systems, it serves to direct illumination, protect sensitive internal components from environmental contaminants, and maintain optical clarity under operational conditions. These components are engineered with specific optical properties to minimize distortion, reflection, and absorption while withstanding mechanical stress, temperature variations, and potential chemical exposure.

Working Principle

Operates based on principles of refraction and transmission. Lenses bend light rays to focus or diverge beams, while optical windows provide a flat, transparent barrier that allows light to pass with minimal alteration. In industrial settings, they maintain optical paths, protect internal components from dust and debris, and can be coated to enhance performance (e.g., anti-reflective coatings).

Materials

Typically made from optical-grade materials such as fused silica, borosilicate glass, sapphire, or polycarbonate. Material selection depends on application requirements including wavelength transmission, thermal stability, mechanical strength, and chemical resistance. Common specifications include Schott B270, Corning 7980, or synthetic sapphire with hardness >9 Mohs.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Coating	AR coating available (e.g., 400-700 nm)
Diameter	10-200 mm
Flatness	λ/4 at 632.8 nm
Thickness	1-20 mm
Parallelism	<3 arc minutes
Transmission	>90% at specified wavelengths
Surface Quality	40-20 scratch-dig

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 14997, DIN 3140, DIN 58750

Parent Products

This component is used in the following industrial products

Light Source / Magnetic Field Generator

A dual-function component in encoders that provides either optical illumination for optical encoders or generates magnetic fields for magnetic encoders.

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Engineering Analysis

Risks & Mitigation

Scratches or contamination reducing transmission
Thermal expansion causing misalignment
Chemical degradation from cleaning agents
Mechanical failure under vibration or impact

FMEA Triads

Trigger: Improper handling during installation
Failure: Surface scratches or cracks
Mitigation: Implement cleanroom protocols, use protective coatings, and train personnel on proper handling techniques.

Trigger: Exposure to high temperatures beyond material limits
Failure: Thermal stress cracking or coating delamination
Mitigation: Select materials with appropriate thermal coefficients, incorporate cooling systems, and monitor operational temperatures.

Trigger: Incompatible cleaning chemicals
Failure: Chemical etching or haze formation
Mitigation: Use approved cleaning solutions (e.g., isopropyl alcohol), establish cleaning SOPs, and test chemical compatibility during design.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1 mm diameter, ±0.05 mm thickness, surface flatness λ/4

Test Method

Interferometry for flatness, spectrophotometry for transmission, visual inspection per ISO 14997

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 Lens/Optical Window

Manufacturer profiles associated with Lens/Optical Window.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between a lens and an optical window in industrial applications?

A lens is designed to focus or diverge light, altering its path, while an optical window is a flat, transparent component that protects internal systems without changing light direction. Both are critical for maintaining optical integrity in industrial environments.

How do I select the right material for an optical window?

Consider wavelength requirements, environmental conditions (temperature, humidity, chemicals), mechanical stress, and cost. Fused silica offers high UV transmission, sapphire provides extreme durability, and polycarbonate is impact-resistant for less demanding applications.

What standards apply to industrial optical components?

ISO 10110 specifies optical drawing standards, ISO 14997 covers surface quality testing, and DIN 3140/58750 provide German standards for optical components, ensuring consistency in manufacturing and performance.

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.

Lens/Optical Window