Laser_Marker_technical_guide_EN_202007_Q90I-E3-01 (EN)

Laser Marker Overview ..................................................3 Laser Marker Characteristics .........................................4 Laser Marker Construction ............................................5 Laser Marker Types and Characteristics ......................6 Omron’s Laser Marker Characteristics .........................7 Laser Wavelength and Processing Material ...............8 Operational Notes ...........................................................9 Glossary ..........................................................................10 Technical Guide Table of Contents 2

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1 Laser Marker Overview What are laser markers? A laser marker is a non-contact device for marking physical surfaces using laser energy. Laser marking allows for a unique design and shape for each product since the label data (letters and graphics) can be edited on a computer using template creation software, and it does not wear off or peel off because it is marked directly on the product. In addition to labeling, laser markers are also used widely for drilling holes, cutting, trimming, and detailed processing.

Template Creation and Editing Software Creating and editing data Creating new font data Creating logo data Laser marker applications Laser markers are used in a variety of industrial applications, such as printing 2D codes on automotive parts, logos on electronic components/electrical devices, lot numbers, and many more. Automotive parts Electronic components/ electrical devices Machines/tools Semiconductors/PCBs Molded parts Medical instruments 3

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Technical Guide 2 Laser Marker Characteristics Benefits of using a laser marker 1. Permanent processing and marking Laser marking is perfect for manufacturing history, process management, and other critical information. It will not wear off or peel off, because it is marked directly on the product. 2. High-quality, fine-detail processing and marking This no-contact technology minimizes damage to the product, and allows high quality detailed processing and marking. 3. High-speed processing and marking: high productivity Laser marking is both faster and easier than other kinds of processing or marking. It contributes more to productivity than other methods. 4.

Operating costs of electric usage There is no need for periodic maintenance, no ink to refill, no cleaning to be done, no blade to change or sharpen. The electric usage is the primary operating cost. 5. Wide range of materials and processing Materials which can be marked include metals, plastics, resins, plastic film, and others. Labeling data can include logos, graphics, model numbers, serial numbers, 2D codes, and more. 6. Environment-friendly processing and marking There is no ink, and therefore no solvent; no adhesive label, no waste disposal.

Marking comparison table 4 Laser Marker Inkjet Adhesive Label Stamping Press Marking Chemical marking Contact/No contact No contact No contact Contact Contact Contact Contact Permanence Semi-permanent Wears off Peels off Wears off Semi-permanent Good Detailed Marking Good Fair Fair No good Fair Good Process Easy Requires drying Requires a separate process Requires drying Good No good ( re q u ir e s a ) separate process Label Changes Easy Easy Physical label change No good Fair No good Inventory Management No need No need Label stock No need No need Lot production Waste/Environmental Impact Minimal Ink Backing paper Ink Minimal Liquid processing issue Operating Cost Minimal Ink refills Labels Ink refills Parts replacement Liquid processing issue

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3 Laser Marker Construction Operating principles and features Laser markers use laser light to process and mark label data that has been edited using template design software. There are 2-dimensional laser markers for flat surfaces and 3-dimensional laser markers for both flat and shaped surfaces. 2D Marking (fθ lens) Galvanometer A galvanometer and scan mirror are used to scan the laser beam and mark the product surface. An fθ lens is used to concentrate the light on the marking surface. Laser oscillator fθ lens Scan mirror Product 3D Marking Galvanometer A galvanometer and scan mirror are used to scan the laser beam and mark the product surface.

Moving the focus lens (used instead of the fθ lens) back and forth makes it possible to adjust the beam not only on the x and y axes, but also on the z axis. Focus lens Laser oscillator Scan mirror Product 5

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