In the field of machine vision, the lens as the core component to capture image information, its selection directly determines the imaging quality and detection accuracy.FA lens family, industrial lens, zoom lens and telecentric lens have their own characteristics, widely used in different vision inspection scenes. With these three types of lenses, POMEAS can help you quickly lock the most suitable visual inspection lens for your needs.

Industrial lenses: versatile for cosmetic imperfections and positioning

Industrial lenses are the most common type of lens used in machine vision and are designed to meet a wide range of automated inspection needs. These lenses typically have a high resolution and moderate focal length range, and are able to clearly capture the overall contours and surface features of an object, making them ideal for visual appearance defect detection, such as scratches, stains, or color deviations on the surface of a product. In addition, industrial lenses excel in visual positioning tasks, accurately identifying and positioning workpieces on production lines to provide reliable data support for subsequent assembly and sorting.

Zoom Lens: Flexibility to Meet Diverse Inspection Challenges

With its adjustable focal length, the zoom lens stands out as the “Transformer” of the machine vision system. By adjusting the focal length, the zoom lens can provide clear and accurate imaging of objects at different working distances and viewing angles. This feature makes it particularly good at observing product details, whether it is a tiny electronic component or a complex mechanical structure, can be zoomed in or out through the zoom lens to obtain a clear image. In addition, zoom lenses are often integrated into microscope systems for precision observation and analysis in scientific research and medical fields. In scenarios where the inspection object needs to be changed frequently or the inspection distance varies, zoom lenses offer great flexibility and convenience.

Telecentric lenses: The first choice for high-precision measurements

The unique imaging principle of telecentric lenses ensures high resolution and reduces image distortion due to changes in object height, thus ensuring the accuracy of measurement results. Whether it is a tiny electronic component or a large mechanical part, the telecentric lens can clearly present every detail of it, which is the best choice for product size inspection program. In flash meters, image meters and other high-precision measuring equipment, telecentric lenses play a crucial role, which can not only improve the measurement efficiency, but also significantly improve the measurement accuracy, providing strong support for quality control.

Quick Selection Strategy

In the face of diverse visual inspection needs, how to quickly choose the right lens for you? The key lies in defining the inspection target, working environment and accuracy requirements. For appearance defect detection and visual positioning tasks, industrial lenses are often the first choice because of their versatility and cost-effective; while in the scenes that require careful observation of product details or integrated microscope systems, zoom lenses can provide more flexibility; as for high-precision measurements, telecentric lenses are undoubtedly the best choice, which ensures that accurate and error-free measurements can still be outputted under complex and variable inspection conditions.