In the booming development of machine vision system, precision inspection field on the increasingly stringent requirements of imaging quality, telecentric lens quietly into the public's field of vision, become an indispensable key components in this field.

Origins: born out of necessity, bridging the gap

At the beginning of the 21st century, machine vision technology widely penetrated into all aspects of precision testing, the limitations of the traditional common industrial lens gradually exposed. Ordinary lens imaging process is affected by the object distance from the lens, easy to produce parallax, resulting in unstable image magnification. This defect in high-precision measurement tasks, will directly lead to measurement errors, seriously affecting the accuracy of the inspection results.

In order to effectively solve this problem and meet the needs of precision inspection, telecentric lenses were born. It utilizes a unique optical design principle to successfully overcome the parallax problem, ensuring that no matter how the distance between the object and the lens changes, the magnification of the image is always constant, providing a solid imaging foundation for precision inspection.

Classification: Multiple Expansion, Precise Adaptation

Along with the continuous diversification of visual inspection needs and the evolution of high standards, the telecentric lens family continues to grow and develop, giving rise to a number of distinctive branches.

The high-resolution telecentric lens focuses on fine imaging, and with its excellent optical performance, it can clearly capture micron-sized fine features. In semiconductor chip manufacturing, electronic component inspection and other areas requiring high precision, it can accurately present the internal structure and surface details of products, providing a key basis for quality control.

Bilateral telecentric lens adopts two-way optical structure, taking into account the imaging characteristics of objects in both directions. In the three-dimensional measurement scene of precision mechanical parts, it can not only accurately obtain the conventional size information such as length, width, etc. of the parts, but also accurately measure the thickness, concentricity and other complex parameters, which greatly improves the comprehensiveness and accuracy of the measurement.

The Cannonball Telecentric Lens stands out with its outstanding long focal length advantage, designed for long-distance and large object inspection. When faced with the task of large industrial equipment appearance defects inspection, long-distance target monitoring, it can focus on the target at a longer distance, clear imaging, effectively solve the imaging difficulties caused by the distance is too far or the object is too large.

Application: The right hand for precision measurements

The core application of telecentric lenses focuses on precision measurement and plays a key role in many industries.

1、In the electronics manufacturing industry, from the tiny circuits of cell phone chips to the complex wiring of computer motherboards, telecentric lenses are able to accurately measure the dimensional accuracy, pin spacing, surface flatness, and other key indicators of various types of electronic components to ensure stable and reliable performance of electronic products.

2、Automobile manufacturing field, engine core components, automobile wheel hubs and other precision parts processing process, tolerance control is critical. Telecentric lenses help engineers accurately measure the dimensions of parts, strictly control the tolerance range, ensure the assembly quality of the whole vehicle, and enhance the safety and stability of automobile driving.

3、Medical equipment manufacturing industry, the precision and quality requirements are almost harsh. The tiny parts of high-end devices, such as pacemakers and artificial joints, must undergo the strict inspection of the telecentric lens to ensure that there are no minor defects, and to guard the lives and health of patients.