Application of Industrial Bar Light Sources

Industrial bar light sources are a type of long strip-shaped LED lighting equipment. With features such as high brightness, high uniformity, customizable length, and flexible installation, they are widely used in industrial inspection, machine vision, and other fields. The main application scenarios include the following:

Surface Defect Inspection

Suitable for detecting surface defects (such as scratches, dents, stains, cracks, etc.) on materials like metals, plastics, glass, and films. Bar light sources can illuminate from multiple angles (e.g., low-angle lighting) to create light-dark contrast between defects and the surface, enhancing the recognizability of defects. They are commonly used in quality inspection of electronic components, automotive parts, and packaging materials.

Edge and Contour Detection

Utilizing the linear lighting characteristics of bar light sources, they can highlight the edges, contours, or gaps of objects, facilitating machine vision systems to identify the shape, size, or position of objects. For example, they are applied in scenarios such as PCB board positioning, part dimension measurement, and item counting on conveyor belts.

Character and Barcode Recognition

For characters printed on product surfaces (e.g., production dates, model numbers), QR codes, or barcodes, bar light sources can provide uniform illumination, eliminate reflections or shadow interference, and ensure the accuracy of optical character recognition (OCR) or barcode scanning. They are widely used in food packaging, electronic labels, logistics tracing, and other links.

Online Assembly Line Inspection

Bar light sources can be customized in length according to the width of the assembly line, adapting to different production scenarios (such as film production, steel plate rolling, paper processing, etc.). Cooperating with cameras to collect images in real-time, they realize online quality monitoring of continuously produced products, promptly detecting abnormalities and triggering alarms.

Backlighting

When it is necessary to detect internal defects, impurities, or contours of transparent or translucent objects (such as glass, films, acrylic), bar light sources can be used as backlights. Through transmitted light, the details of objects are presented more clearly, which is common in LCD screen inspection, bottle cap sealing inspection, etc.

In conclusion, industrial bar light sources provide stable and reliable lighting support for machine vision systems through flexible installation methods (such as combined splicing and multi-angle adjustment) and lighting modes adapted to different scenarios, making them an indispensable key component in industrial automation inspection.