Laser Profiler / 3D Laser Snapshot Sensor

Laser profilers are laser displacement sensors that collect height data across a laser line rather than a single point. This enables 2D/3D measurements such as height difference, width, or angle to be performed using a single sensor. In addition to height data, KEYENCE profile sensors also collect intensity data to provide a stable solution for inline measurement and inspection. The lineup includes a wide range of sensors to support a variety of applications and industries. In addition, our new 3D Laser Snapshot Sensor allows for 3D visual inspections of stationary targets in fractions of a second with a high degree of accuracy, enabling inspection in even more situations.

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LJ-S8000 series - 3D Laser Snapshot Sensor

3D Laser Snapshot Sensor LJ-S8000 series

The LJ-S8000 Series 3D Laser Snapshot Sensor is the first in the world to adopt a motor-driven scanning detection method. The built-in laser light source and scanning mechanism eliminate the need for external lighting, lensing, a moving stage, or an encoder. This makes it possible to perform not only inspection (dimensioning, appearance, shape, etc.) but also differentiation just by installing the sensor. Ultra-high-speed, ultra-high-accuracy inline 100% inspections are now possible for a wide variety of targets made from a wide variety of materials with imaging speeds of as little as 0.2 seconds and repeatability of 0.3 µm. Meanwhile, KEYENCE’s Imaging Navigation function makes adjustment as easy as selecting the image with the best quality, eliminating the need for specialized skills and significantly reducing the time and effort needed at startup or when reconfiguring settings.

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Features

World’s First Profiler with Built-In Scanning Mechanism! Highly Accurate, Stable Inspection With No Need for Troublesome Adjustments

The LJ-S Series utilises a one-of-a-kind design that allows for scanning of parts by moving the components internally and eliminating the need to move the part of sensor head. This not only makes installation a breeze, but also creates a large depth of field.

1

High-intensity blue laser
The high light concentration density and sharp image-forming beam enable high inspection accuracy.
2

High-resolution CMOS
3

Brushless direct-drive motor
The unique brushless design ensures ultra-high durability of the direct-drive motor.

No Lighting, Motion, of Encoders Needed

No lighting required

No stage required

No encoder required

LJ-X8000 series - 2D/3D Laser Profiler

2D/3D Laser Profiler LJ-X8000 series

Perform 2D/3D measurement and inspection in line with the LJ-X8000 Series. Our most versatile lineup of laser profilers offers 3200 points/profile, making it easy to accurately measure any target shape or material from high-resolution images. The laser profile scanners are compatible with four different controller options, allowing users to select a setup that perfectly aligns system capability with any application requirements. The maximum laser linewidth reaches over 720mm (28"), and multiple can be paired together to scan even larger targets. Programming for these high-performance sensors is completed in three simple steps, making accurate in line 3D measurement accessible for users of any experience level.

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Features

Improve Reliability with 4x More Resolution

Capturing the true shape of a target is critical for performing reliable inspections. With 3200 points/profile, the LJ-X8000 Series captures target shape in high resolution, enabling accurate inline measurement.

Conventional

Rough
Irregular
Surface dependent

LJ-X8000

Detailed
Consistent
Stable on any surface

Maximising Resolution and Target Detection

To improve the resolution of the sensor, the number of pixels on the CMOS needs to be increased. This can be accomplished by making each pixel smaller; however, smaller pixels can result in insufficient light detection, causing an inaccurate profile on some targets. For the LJ-X8000 Series, we’ve implemented new technology to create a laser profiler capable of high-resolution measurement on any target.

Cylindrical lens

Parallel light is emitted using a cylindrical lens designed to prevent the reflected light from scattering across the surface of the target. This ensures reliable reflections from any shape or surface.

Large-aperture receiver lens

The sensor is equipped with a receiver lens that has 3x more area than conventional models, increasing the received light intensity. This allows the sensor to produce stable profiles in any environment.

High-resolution CMOS

This newly developed CMOS enables high-resolution measurement using 3200 points/profile, while delivering improved imaging capability on targets with varying reflectivity.

Profile Alignment Function

When creating a 3D image, the positions of each 2D profile are adjusted in the X, Z, and θ directions. This eliminates the impact of vibration and eccentricity as well as bends and curvature in the target, creating an optimal image for inspection.

Without profile alignment

Without profile alignment, the target image is distorted by vibration, making it impossible to perform accurate inspection.

With profile alignment

Profile alignment allows for an optimal 3D image to be created. This achieves stable, inline inspections for dents, chips, and other defects.

LJ-V7000 series - High-speed 2D/3D Laser Profiler

High-speed 2D/3D Laser Profiler LJ-V7000 series

THE WORLD’S FASTEST AT 64,000 PROFILES/SEC. Speed that makes the measurement of any product and of any shape a reality!

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LJ-G5000 series - High-Accuracy 2D Laser Displacement Sensor

High-Accuracy 2D Laser Displacement Sensor LJ-G5000 series

The LJ-G Series accurately measures the surface profile of targets in X and Z directions. The height, width or gap on a surface profile can be measured using 28 measurement modes.

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