Detecting and measuring defects in spectacle lenses

Specialist in the inspection of spectacle lenses:

V-optics is a unique partner on the way to achieve «ZERO DEFECTS».

Our QualiLENS 300® solution, dedicated to the qualification of spectacle lenses, uses a single piece of equipment to:

  • Perform cosmetic inspection (scratches, spots, varnish defects, etc.)
  • Locate the optical centre and axes (single vision and progressive lenses)
  • Detect engravings and markings
  • Perform dimensional checks (diameter)

Designed for maximum accuracy and short measurement times, our solutions are available in different configurations to meet your needs and guarantee optimum process reliability.

Technical specifications:

QualiSENSOR pour pare-brise
Height 635 mm
Width 342 mm
Depth 310 mm
Weight 27 kg
Measurement range 90x90 mm

The industries and research centres that rely on our expertise expect us to:


Inspect the production process and reduce reject rates.
In intermediate inspection on the production line, it is a tool for monitoring your production processes thanks to maintenance alert thresholds. And for your rapid delivery services, it ensures that an order is quickly reissued at every stage in the event of a defect.


Monitor product properties and trace defects.
You guarantee your customers the traceability of the inspection of your spectacle lenses delivered to them.


Automate cosmetic inspection by objectifying the criteria established between the supplier and the customer.
A defect bank and customisable algorithms can be used to identify each type of defect.


Provide objective measurements and values of defects or surface characteristics to R&D and quality departments.
Thanks to decision trees and algorithms guaranteed to be AI-free, the QualiLENS 300 automatic defect detection method is compatible with the requirements of the most demanding “medical devices” standards for optics and intraocular lenses (IOL).

Example of results :

Separation of dusts and fibres (blue) from other defects accepted (green) or not accepted (red).

Exemple de résultat pour QualiLens 300
Exemple de résultat pour QualiLens 300

Example of varnish defect:

Zoom on varnish defect:

Zoom sur les défauts de vague de vernis

Varnish wave

Zoom sur les défauts de point de vernis

Varnish point