Industry-Verified Manufacturing Data (2026)

Light Source/Detector

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Light Source/Detector used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Light Source/Detector is characterized by the integration of LED/Laser Diode and Photodiode Array. In industrial production environments, manufacturers listed on CNFX commonly emphasize Gallium Arsenide (GaAs) for LEDs construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Integrated optical component that emits and receives light signals for position/speed detection in feedback systems.

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Product Specifications

Technical details and manufacturing context for Light Source/Detector

Definition
A combined optical component within feedback devices (encoders/resolvers) that generates light signals and detects their reflection/interruption to measure rotational position, speed, or linear displacement with high precision.
Working Principle
The light source (typically LED or laser diode) emits a beam that interacts with a coded disk or strip. The detector (photodiode or phototransistor array) receives the modulated light pattern, converting optical signals into electrical signals for position/speed calculation.
Common Materials
Gallium Arsenide (GaAs) for LEDs, Silicon for photodiodes, Optical-grade plastics/glass
Technical Parameters
  • Wavelength of emitted light (typically 650-950nm for infrared, 400-700nm for visible) (nm) Customizable
Components / BOM
  • LED/Laser Diode
    Generates coherent/incoherent light beam for position encoding
    Material: Gallium Arsenide (GaAs) or similar semiconductor
  • Photodiode Array
    Detects light intensity variations and converts to electrical signals
    Material: Silicon or Germanium
  • Optical Lens
    Focuses and directs light beam between source and detector
    Material: Optical glass or acrylic
  • Housing
    Protects optical components and ensures alignment
    Material: Engineering plastic or aluminum
Engineering Reasoning
400-700 nm wavelength, 0.1-100 mW optical power, -40°C to +85°C ambient temperature
LED junction temperature exceeds 125°C, photodiode dark current exceeds 100 nA at 25°C, optical output degradation >30% from initial specification
Design Rationale: Thermal runaway in semiconductor junctions (Arrhenius equation: failure rate doubles per 10°C rise above 85°C), quantum efficiency degradation due to lattice defects from thermal cycling, Fresnel reflection losses exceeding 4% per interface causing signal attenuation
Risk Mitigation (FMEA)
Trigger Electrostatic discharge exceeding 8 kV HBM (Human Body Model) during handling
Mode: Catastrophic semiconductor junction breakdown, immediate 100% optical output failure
Strategy: ESD-protected packaging with conductive foam, wrist strap protocols during installation, on-board transient voltage suppression diodes rated for 15 kV
Trigger Ambient temperature cycling between -40°C and +85°C at 10°C/minute rate
Mode: Thermal stress fracture of wire bonds, epoxy delamination causing 50% signal attenuation within 1000 cycles
Strategy: Gold wire bonding with loop height <150 μm, low-stress silicone encapsulation with CTE matched to 6.5 ppm/°C, thermal cycling qualification to 5000 cycles

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Light Source/Detector.

industrial optical position sensor machinery feedback light detector GaAs LED speed sensor integrated photodiode array component optical-grade plastic housing sensor

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Feedback Device (Encoder/Resolver)
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 2 bar absolute
other spec: Max particulate concentration: 5% w/v, Max flow velocity: 3 m/s
temperature: -20°C to +85°C
Media Compatibility
✓ Clean water/glycol mixtures ✓ Hydraulic oils (mineral-based) ✓ Compressed air (oil-free, filtered)
Unsuitable: Abrasive slurries with >5% solids or corrosive chemicals (e.g., strong acids)
Sizing Data Required
  • Required sensing distance (mm)
  • Target object size/reflectivity
  • Required response time (ms)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Optical Degradation
Cause: Contamination buildup (dust, oil, particulates) on lenses or sensors, leading to reduced light transmission or signal strength.
Electronic Component Failure
Cause: Thermal stress from overheating due to poor ventilation or excessive ambient temperature, causing solder joint fatigue or semiconductor breakdown.
Maintenance Indicators
  • Inconsistent or fluctuating output readings (e.g., signal drift, erratic measurements)
  • Visible discoloration, fogging, or physical damage to optical surfaces (lenses, windows)
Engineering Tips
  • Implement regular cleaning schedules with manufacturer-approved, non-abrasive materials and solvents to prevent contamination without damaging coatings.
  • Ensure proper thermal management through adequate ventilation, heat sinks, or environmental controls to maintain operating temperatures within specified ranges.

Compliance & Manufacturing Standards

Reference Standards
ISO 15004-2:2007 (Ophthalmic instruments - Light hazard protection) ANSI/IESNA RP-16-17 (Nomenclature and Definitions for Illuminating Engineering) DIN 5035-7:2019 (Artificial lighting - Part 7: Lighting of indoor workplaces)
Manufacturing Precision
  • Wavelength accuracy: +/- 2 nm
  • Output intensity stability: +/- 1% over 8 hours
Quality Inspection
  • Radiometric/Photometric calibration verification
  • Environmental stress testing (temperature/humidity cycling)

Factories Producing Light Source/Detector

Verified manufacturers with capability to produce this product in China

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✓ 96% Supplier Capability Match Found

T Technical Director from Australia Jan 30, 2026
★★★★★
"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Light Source/Detector so far."
Technical Specifications Verified
P Project Engineer from Singapore Jan 27, 2026
★★★★☆
"Testing the Light Source/Detector now; the technical reliability results are within 1% of the laboratory datasheet. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Germany Jan 24, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

8 sourcing managers are analyzing this specification now. Last inquiry for Light Source/Detector from Poland (1h ago).

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Frequently Asked Questions

What makes this light source/detector suitable for machinery feedback systems?

Its integrated design combines Gallium Arsenide LEDs for stable light emission and silicon photodiodes for precise signal reception, enabling accurate position and speed detection in harsh industrial environments.

How does the optical-grade plastic/glass housing improve performance?

The optical-grade materials minimize signal distortion and protect sensitive components from dust, moisture, and mechanical stress, ensuring consistent performance in manufacturing equipment.

Can this component be customized for specific machinery applications?

Yes, the photodiode array configuration, lens specifications, and housing design can be adapted for different detection ranges, resolutions, and environmental conditions in various equipment types.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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