Posted in | Optical Sensors

Line Confocal Sensors for High-Speed Inline Inspection

LCI1220 and LCI1620, the new Line Confocal Sensors from LMI Technologies, provide an unrivaled combination of imaging capability, precision, and speed for inline inspection.

Manufacturers can now obtain 2D intensity and 3D topography data, as well as 3D tomography, with a speed of up to 16,000 profiles per second. In addition to 1728 points per profile, based on the field depth, a sampling speed of up to 27,000,000 data points per second can be achieved.

Such a combination of imaging capability, precision, and speed cannot be offered by any other commercially available sensor.

Key Features of New Line Confocal Sensors

  • Sampling speed of up to 27 million data points per second
  • Maximum measurement speed ranges between 11,000 and 16,000 Hz
  • 1728 measurement points in a single line
  • Measurement repeatability of 0.19–0.25 μm
  • Pixel size x 6.7–9.9 μm
  • 3D tomography, 2D intensity data, and 3D topography can be captured simultaneously
  • Full-field-depth measurement speed of 3000 Hz
  • Any types of surfaces can be inspected, such as multilayered, curved, and transparent materials

Main Technical Specifications

  LCI1220 LCI1620  
Optical profile length 11.6 17.0 mm
Pixel size X 6.7 9.9 µm
Pixel size Y 10.0 36.0 µm
Z repeatability 0.19 0.25 µm
Stand-off distance 20.6 64.0 mm
Depth of field 3.0 5.5 mm
Max. measurement speed 16 000 11 000 Hz
Number of points/profile 1 728 1 728  
Max. slope of objects ±20.0 ±13.5 deg

Applications for Line Confocal Sensors

LMI Technologies' LCI sensors have been exclusively designed for high-speed inline inspection in printed electronics and customer electronics industries. In addition, they can be used for challenging applications in different industries that demand high measurement speed and sub-micron resolution.

Benefits of Using Line Confocal Sensors for Inline Inspection

The LCI sensors enable quality inspection of products that necessitate extreme precision and accuracy. This is achieved without giving up on capacity during high-volume and high-speed manufacturing.

Benefits for Manufacturers

  • Inline 2D and 3D measurement with better precision
  • Production capacity and quality are optimized
  • Higher speed
  • Maximized yields and faster throughput
  • A broad array of demanding materials, surfaces, and shapes can be imaged
  • Improved flexibility

Benefits for System Integrators

The use of Line Confocal Sensors offers system integrators, a competitive edge. They can develop unmatched intelligent solutions for manufacturers by combining high-speed LCI sensors with existing manufacturing lines or new machine vision systems.


Range of Line Confocal Sensors for Inline Inspection

The LCI sensors have been designed especially for use in high-volume consumer electronics manufacturing. A wide range of LCI sensors is available for applications that necessitate equally precise measurement capabilities, but not maximum speed.

Any types of surfaces — transparent, multilayered, or curved materials — can be analyzed by using the LCI sensor series from LMI Technologies.

Sensor Integration for Inline Inspection

All Line Confocal Sensors include a platform-independent integration tool. This tool helps these sensors to be easily incorporated into an existing manufacturing line or a new machine vision system.

Main Technical Specifications

  LCI401 LCI1200 LCI1201 LCI1600 LCI1220 LCI1620  
Optical profile length 4.3 11.3 11.5 16.6 11.6 17.0 mm
Pixel size X 2.1 5.5 5.6 8.1 6.7 9.9 μm
Pixel size Y 4.0 25.0 10.0 36.0 10.0 36.0 μm
Z repeatability 0.05 0.11 0.13 0.24 0.19 0.25 μm
Stand-off distance 8.0 16.2 20.6 64.0 20.6 64.0 mm
Depth of field 1.1 2.8 3.0 5.5 3.0 5.5 mm
Max. surface slope (on mirror) ±15.0 ±20.0 ±20.0 ±13.5 ±20.0 ±13.5 deg

This information has been sourced, reviewed and adapted from materials provided by LMI Technologies.


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