INDUSTRY COMPONENT

Lens/Window

Transparent protective cover for industrial sensors that allows optical signal transmission while shielding internal components.

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Component Specifications

Definition
A precision-engineered optical component designed as a protective interface for industrial sensors, typically made from specialized transparent materials that permit specific wavelengths of light or electromagnetic radiation to pass through while protecting sensitive internal elements from environmental contaminants, mechanical damage, and chemical exposure. It serves as the critical optical pathway between the sensor's detection system and the external environment.
Working Principle
Operates by transmitting optical signals (visible light, infrared, ultraviolet, or laser) from the monitored environment to the sensor's internal detectors while filtering out unwanted wavelengths and protecting against physical and chemical interference. The lens/window maintains optical clarity and structural integrity under industrial conditions.
Materials
Borosilicate glass, fused silica, sapphire, polycarbonate, acrylic (PMMA), or specialized optical polymers with anti-reflective, anti-scratch, or chemical-resistant coatings.
Technical Parameters
  • Diameter 5-100 mm
  • Flatness λ/4 at 632.8 nm
  • IP Rating IP67/IP69K
  • Thickness 1-10 mm
  • Transmittance >90% at specified wavelengths
  • Surface Quality 60-40 scratch-dig
  • Temperature Range -40°C to +150°C
Standards
ISO 10110, ISO 9022, DIN 3140, DIN 58750

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Lens/Window.

sensor lens optical window industrial sensor protection machine vision lens sensor cover optical component industrial automation Lens/Window Lens/Window in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Sensors

Devices that detect and measure physical properties or environmental conditions in conveyor systems

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Sensing Head

The active detection element of a positioning sensor that directly interacts with the target to measure position, distance, or presence.

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Light Source (e.g., Laser Diode)

An optical component that generates and emits light, typically coherent or specific-wavelength illumination, for sensing applications.

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Engineering Analysis

Risks & Mitigation
  • Optical degradation from scratches/contamination
  • Thermal stress cracking
  • Chemical corrosion
  • Mechanical impact damage
  • Fogging/condensation
FMEA Triads
Trigger: Abrasive particulate contamination in industrial environment
Failure: Reduced optical transmittance leading to sensor signal loss
Mitigation: Implement regular cleaning protocols, use protective covers when not in operation, select hardened materials like sapphire for high-abrasion environments
Trigger: Thermal cycling beyond material specifications
Failure: Cracking or delamination of optical element
Mitigation: Select materials with matching thermal expansion coefficients, implement gradual temperature transitions, use thermal barriers or insulation
Trigger: Chemical exposure to aggressive cleaning agents or process chemicals
Failure: Surface etching or coating degradation
Mitigation: Select chemically resistant materials (fused silica, sapphire), implement proper cleaning procedures, use protective coatings

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1 mm dimensional, ±0.5° angular alignment
Test Method
ISO 9022 for environmental testing, spectrophotometry for transmission measurement, surface quality per MIL-PRF-13830

Buyer Feedback

★★★★☆ 4.5 / 5.0 (28 reviews)

"Testing the Lens/Window now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Lens/Window meets all ISO standards."

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Frequently Asked Questions

What is the difference between a sensor lens and a sensor window?

A lens typically has curved surfaces to focus or diverge light, while a window has flat parallel surfaces primarily for protection and transmission without optical power. Both serve as protective optical interfaces.

How often should sensor lenses/windows be cleaned or replaced?

Cleaning frequency depends on the operating environment—typically monthly in clean environments, weekly in dusty or oily conditions. Replacement is needed when scratches, cracks, or permanent contamination reduce optical performance below specifications.

Can sensor windows be customized for specific wavelengths?

Yes, materials and coatings can be selected to optimize transmission for specific wavelengths (UV, visible, IR) while blocking others, and anti-reflective coatings can be applied for particular frequency ranges.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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