Introducing a Telecentric Lens

1. High Resolution

Image resolution is typically quantified using the Contrast Transfer Function (CTF), measured in line pairs per millimeter (lp/mm). Many machine vision integrators often combine numerous inexpensive, low-pixel, and low-resolution lenses, resulting in blurry images. However, telecentric lenses, even when paired with small-pixel image sensors, can generate high-resolution images.

2. True Telecentric Design, Extra-Wide Depth of Field, and Low Distortion

There was a misconception that telecentric lenses primarily address distortion. In reality, low distortion is merely an additional attribute of telecentric lenses. Their unique optical property—constant magnification regardless of object position within the field of view—makes them irreplaceable in certain applications. For instance, their extensive depth of field adapts well to various work environments, which cannot be solely solved through algorithms.

3. Unique Parallel Optical Path Design

Designing a telecentric lens for parallel light imaging is theoretically straightforward, but achieving a certain level of resolution and image quality is another matter. The design and manufacturing of telecentric lenses are indeed more challenging than conventional lenses. This is due to the larger optical lens sizes in telecentric lenses, which increase the difficulty of correcting various aberrations at the edges.