In modern production lines, can character inspection is an important part of ensuring product quality and traceability. The traditional character detection method mainly relies on manual visual inspection, this way is not only inefficient, but also prone to errors, and can not meet the needs of large-scale, high-efficiency production. In recent years, with the rapid development of machine vision technology, dome light source has been widely used in can character detection, greatly improving the efficiency and accuracy of detection.

Characteristics of dome light sources:

The POMEAS Dome Light Source is a specially designed machine vision light source with light beads mounted at the bottom of the dome, indirectly illuminating the target through the dome's diffuse reflector. This design allows the light emitted from the light source to evenly and softly illuminate the surface of the can, forming a coaxial non-direct light, effectively avoiding shadows and reflections caused by direct light. Therefore, the dome light source is especially suitable for the detection of uneven and reflective surfaces, such as metal, glass and other reflective objects.

Application of dome light source in can character detection:

1、Character Clarity Improvement：The coaxial non-direct light from the dome light source illuminates the surface of the can uniformly, making the coded characters clearly visible. This helps the machine vision system to recognize and read the character information more accurately.

2、Shadow and reflection removal：Due to the diffuse reflection design of the dome light source, shadows and reflections caused by direct light can be effectively avoided. This ensures that characters are clearly visible even in complex lighting environments and improves detection accuracy.

3、Increased detection speed：Compared with the traditional manual visual inspection, the machine vision system with dome light source can realize high-speed and continuous inspection. The detection speed can reach dozens or even hundreds of cans per second, greatly improving production efficiency.

4、Intelligent, automated inspection：By combining advanced image processing algorithms and artificial intelligence technology, the machine vision system is able to realize intelligent and automatic inspection of can characters. The system can automatically determine the integrity of the characters, clarity and other quality indicators, and generate the corresponding inspection reports and statistics.

The application of POMEAS dome light source in can character inspection has greatly improved the inspection efficiency and accuracy, providing a strong guarantee for the efficient operation of the production line.