Telecentric lenses play a critical role in situations where precise measurement and high-quality images are required. They also have unique advantages in various optical applications. This is why so many types of lenses we produce may meet your needs. If you have any selection questions, you can always consult us.
As the name suggests, telecentric lenses can see things far away and maintain quality. They use the principle of constant magnification and can also get very clear images. Unlike traditional lenses, which distort objects according to distance, telecentric lenses are different. No matter how far the object is from the lens, it can ensure that the size of the object remains unchanged. Therefore, this feature plays a key role in ensuring accurate measurement at different distances.
How telecentric lenses work？
The core of a telecentric lenses is its ability to eliminate perspective errors. This multi-component optical assembly produces a constant field of view regardless of the distance of the object from the lens. The key advantage here is that the size of the object remains consistent, providing reliable measurement and image quality.
Key advantages of telecentric lenses
Uniform magnification: objects look the same at any distance from the lens.
Excellent image performance: achieve clear, high-quality images with minimal distortion.
Reduced distortion: Provides accurate representation by minimizing measurement errors.
Wide depth of field: Maintains focus over a wide range depending on the lens design.
Lenses Of Applications in Machine Vision and Quality Control
Telecentric lenses are useful for tasks that require accurate measurement of objects at varying distances. They excel at detecting tiny defects and capturing detailed images that traditional lenses may miss. When combined with a telecentric lighting system, these lenses improve image clarity by producing sharp, high-contrast edges. This setup is particularly useful in quality control processes, where detecting subtle defects is critical.
The image on the left shows the sharp edge outline achieved using a telecentric lens and lighting, compared to the fuzzy edges seen using a standard backlight
Telecentric lenses also play a vital role in photolithography, a process for manufacturing integrated circuits. The technique involves using light to project detailed patterns onto wafers. The lenses used in this process must maintain consistent magnification throughout the depth of field, and telecentric lenses achieve this. This ensures accurate pattern transfer and high-resolution imaging.
We specialize in making custom telecentric lenses for a variety of applications. Whether you are engaged in research or industrial operations, our lenses can meet your specific optical requirements. Contact us to learn how our solutions can enhance your project or to schedule a consultation.
Contact Mok Optics today! We would be happy to discuss your projects and how best to achieve them.