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Combining two Liquid Lenses for Adjustable Working Distance

Telecentric Zoom Lens

Opto Engineering will release the new TCZEL telecentric lenses series that integrates two liquid lenses whose synergy allows to control both: magnification and working distance. inVISION spoke with Francesco Mondadori, product manager at Opto Engineering, about the new optics series.

Image: Opto Engineering S.p.A.Image: Opto Engineering S.p.A.

The integration of two liquid lenses makes it possible to combine the

variations of optical powers in order to

precisely adjust both the working

distance and the magnification.

Francesco Mondadori, Opto Engineering

Why does the TZCEL has two Liquid Lenses?

Francesco Mondadori: The integration of a liquid lens into the telecentric optics enables rapid focusing to adjust the working distance, as in Opto Engineering's TZCEL series, for example. The magnification, on the other hand, remains almost the same (except for small variations that can be calibrated) and it is therefore possible to benefit from all the advantages of telecentric lenses while overcoming the limitations of a reduced depth of field.

The integration of two liquid lenses, on the other hand, makes it possible to combine the variations of optical powers in order to precisely adjust both the working distance and the magnification, creating a telecentric zoom lens capable of refocusing even on different planes. Thanks to this it is possible to avoid mechanical movements of the optics or of the object to be inspected, increasing the efficiency of the vision system.

Opto Engineering S.p.A.

Dieser Artikel erschien in inVISION E-Magazin inVISION International (english) 2023 - 18.10.23.
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