One of hundreds of successful Leti collaborations, this bilateral partnership began in 2006. We formed a common lab in 2007, and renewed it in 2009.

Supporting Essilor’s new strategy

Essilor has collaborated successfully with CNRS on various projects over the years. While the two of them worked mainly on material research and advanced concepts, Leti developed the technologies and building prototypes for the new lenses. Apart from a specific ink jet tool acquired for the project, the equipment and related technologies, including microelectronics photolithography techniques, were developed on Leti’s 200mm backend technology platform.

Technology development

As Jean-Luc Schuppiser, Essilor’s Corporate Senior Vice President of R&D, told the magazine Usine Nouvelle early this year, “With these two labs, Essilor developed a new generation of digital lenses of which the optical and physical properties will be encapsulated in microcuvettes, independent from one another, in order to multiply infinitively the personalization of the lenses. A first commercial product, which is still confidential, is already in preparation.”

For these “invisible microcuvettes” Leti developed:

• the technology for fabrication
• the capability of digitally filling them
• the encapsulation
• the transfer of the final “smart optical film” on the glass

Visit the Essilor website.