TelezentrierObjektive

Telezentrierobjektive, also known as telecentric lenses, are specialized optical systems designed to maintain consistent magnification and minimize image distortion over a range of object distances. Unlike standard lenses, telecentric lenses are characterized by their unique design that ensures the chief rays are parallel to the optical axis in either object space, image space, or both, depending on the type.

There are two main types of telecentric lenses: object-space telecentric lenses and image-space telecentric lenses. Object-space telecentric lenses have their entrance pupil at infinity, resulting in parallel rays entering the lens from objects at varying distances, which prevents size or magnification variations. Image-space telecentric lenses, conversely, have their exit pupil at infinity, keeping the image size constant even when the sensor or film position shifts slightly.

These lenses are widely used in industrial inspection, measurement, and scientific imaging applications where precise dimension control is crucial. Their ability to produce distortion-free and magnification-stable images makes them suitable for applications requiring high accuracy, such as metrology and quality control.

Telezentrierobjektive are typically more complex and expensive than conventional lenses due to their intricate optical design. They often incorporate additional lens elements and specialized coatings to achieve their unique properties. The design ensures that the system’s optical performance remains consistent, reducing errors caused by perspective or focus shifts.

Overall, telecentric lenses are valued for their precision and stability in imaging, making them critical tools in fields demanding high measurement fidelity and image consistency.