Structured Manufacturing Data (2026)

3D Optical Sensor Head

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard 3D Optical Sensor Head used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical 3D Optical Sensor Head is characterized by the integration of Projection Lens Assembly and Imaging Lens Assembly. In industrial production environments, manufacturers listed on CNFX commonly emphasize Optical-grade glass lenses construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The optical sensing component of an Automated Solder Paste Inspection (SPI) system that captures 3D height data of solder paste deposits on printed circuit boards.

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Product Specifications

Technical details and manufacturing context for 3D Optical Sensor Head

Definition
A critical component within Automated Solder Paste Inspection (SPI) systems, the 3D Optical Sensor Head is responsible for non-contact measurement of solder paste volume, height, area, and alignment on PCB pads. It typically employs structured light, laser triangulation, or phase-shift profilometry to generate precise three-dimensional topographical maps of the solder paste deposits, enabling the SPI system to detect defects such as insufficient paste, bridging, misalignment, or excessive volume before the reflow soldering process.
Working Principle
The sensor head projects a pattern of light (e.g., laser lines, structured light fringes) onto the target solder paste. A high-resolution camera, offset at a known angle, captures the deformation of this pattern. Using triangulation algorithms, the system calculates the height (Z-axis) for each point on the surface based on the displacement of the pattern in the camera image, thereby constructing a detailed 3D profile of the solder paste deposit.
Common Materials
Optical-grade glass lenses, Aluminum alloy housing, Precision steel mounts
Technical Parameters
  • Measurement range in the Z-axis (height). (mm) Per Request
Components / BOM
  • Projection Lens Assembly
    Focuses and projects the structured light pattern onto the target surface.
    Material: Optical glass
  • Imaging Lens Assembly
    Focuses the deformed light pattern from the target onto the camera sensor.
    Material: Optical glass
  • Camera Sensor (CMOS/CCD)
    Captures high-resolution images of the projected light pattern for 3D calculation.
    Material: Silicon
  • Housing Part
    Protects internal optics and provides mounting points, ensuring mechanical stability and alignment.
    Material: Aluminum alloy

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for 3D Optical Sensor Head.

automated solder paste inspection 3D sensor SPI system optical sensor head 3D height measurement PCB solder paste optical-grade lens SPI sensor component CMOS CCD camera solder paste inspection

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric (non-contact optical measurement)
other spec: Vibration tolerance: <0.5G @ 5-500Hz, Humidity: 30-70% RH non-condensing
temperature: 15-35°C (operating), 0-50°C (storage)
Media Compatibility
✓ Solder paste deposits (SnPb, SAC alloys) ✓ FR-4 PCB substrates ✓ Solder mask surfaces (green, black, blue)
Unsuitable: Highly reflective surfaces (mirror-finish metals) without anti-glare treatment
Sizing Data Required
  • PCB maximum dimensions (X, Y, Z)
  • Minimum solder paste feature size to be measured
  • Required measurement accuracy (Z-axis resolution)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Lens Contamination
Cause: Accumulation of dust, oil mist, or process debris on optical surfaces, degrading signal quality and measurement accuracy due to environmental exposure without adequate sealing or cleaning protocols.
Laser Diode Degradation
Cause: Gradual output power decline from thermal stress, overcurrent, or aging, leading to inconsistent illumination and reduced sensor performance, often accelerated by poor heat dissipation or electrical surges.
Maintenance Indicators
  • Intermittent or fluctuating measurement readings despite stable process conditions
  • Visible condensation, smudges, or particulate buildup on the sensor's external lens or housing
Engineering Tips
  • Implement routine cleaning with manufacturer-approved, non-abrasive solvents and lint-free wipes, following a scheduled frequency based on environmental contamination levels.
  • Ensure stable, clean power supply with surge protection and maintain ambient temperature within specified operating ranges to prevent thermal stress on electronic and optical components.

Compliance & Manufacturing Standards

Reference Standards
ISO 10360-8:2013 - Geometrical product specifications (GPS) - Acceptance and reverification tests for coordinate measuring systems (CMS) ANSI/ASME B46.1-2019 - Surface Texture (Surface Roughness, Waviness, and Lay) DIN EN 60825-1:2015 - Safety of laser products - Part 1: Equipment classification and requirements
Manufacturing Precision
  • Lens alignment: +/-0.005mm
  • Sensor mounting flatness: 0.02mm over 100mm
Quality Inspection
  • Laser safety classification verification
  • Optical resolution calibration test

Factories Producing 3D Optical Sensor Head

Manufacturer profiles with relevant production capability in China

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

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of this 3D optical sensor head?

This sensor head captures precise 3D height data of solder paste deposits on printed circuit boards as part of an Automated Solder Paste Inspection (SPI) system, enabling quality control in electronics manufacturing.

What materials are used in the construction of this optical sensor head?

The sensor head is constructed with optical-grade glass lenses for clear imaging, aluminum alloy housing for durability and heat dissipation, and precision steel mounts for stable alignment in industrial environments.

What components are included in the Bill of Materials (BOM) for this sensor head?

The BOM includes a camera sensor (CMOS or CCD), housing unit, imaging lens assembly for capturing images, and projection lens assembly for structured light projection in 3D measurement applications.

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 basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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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