A telecentric lens is a type of lens used in machine vision and photography that has a constant magnification regardless of the object’s distance or location in the field of view. This means that the image produced by a telecentric lens is free from perspective distortion, making it ideal for applications where accurate and precise measurements are required. Telecentric lenses are commonly used in machine vision applications such as metrology, inspection, and alignment, where accurate and consistent measurements are critical. The advantages of telecentric lenses include improved accuracy, increased depth of field, and reduced distortion. Because telecentric lenses are designed to capture images with minimal distortion, they are particularly useful in applications where precise measurements are required, such as in semiconductor manufacturing or medical imaging. Additionally, telecentric lenses can be used in conjunction with other lighting techniques, such as backlighting, to further enhance the accuracy and clarity of the images produced.
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