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Shape Evaluation of a Marking Stamped on a Metal Surface / 3D shape measurement using a laser microscope


Application

Marking is a technique applied to products or parts for the purpose of identification or traceability. Various marking methods are used including inkjet, laser, and stamping. Metal stamping is a standard method in many industries and involves using a very hard material to stamp a design onto a metal piece. Unlike engraving, stamping leaves a semi-permanent marking without producing chips in the metal. The size or position of each mark affects its visibility while the stamp’s depth affects durability. These marks need to be evaluated to ensure they are in the correct location and stamped to the corrected depth.

The Olympus solution

Olympus' LEXT 3D scanning laser microscope utilizes a 405 nm semiconductor laser for high horizontal resolution enabling users to accurately measure the width of a stamped mark. The microscope’s confocal optical system provides accurate three-dimensional data of micron-sized irregularities on a surface. With the LEXT, users can accurately reproduce 3D images and make reliable measurements in the z-axis direction. The stitching function seamlessly combines multiple in-focus images to create a single panoramic image, making it simple to get a complete overview of a marking.

Marking stamped on a metal plate

5X_objective_lens_5x5_stitching

Objective lens 5X;  5×5 stitching

laser_20X_objective_lens

Objective lens 20X

laser_100X_objective_lens_1X_zoom

Objective lens 100X, Zoom 1X

laser_3D_100X_objective_lens_1X_zoom

Objective lens 100X, Zoom 1X

Olympus IMS

Products Used for This Application

The LEXT™ OLS5100 laser scanning microscope combines exceptional accuracy and optical performance with smart tools that make the system easy to use. The tasks of precisely measuring shape and surface roughness at the submicron level are fast and efficient, simplifying your workflow and delivering high-quality data you can trust.

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