Varioptic of Lyon, France, a liquid lens provider, and Cognex Corp. of Natick, Mass., a machine vision sensors and systems manufacturer, have announced a partnership and licensing agreement for the use of the former’s liquid lens solutions. Cognex will use the solutions to add autofocus capabilities to its line of identification code readers. The lenses are designed to match the requirements of low-footprint systems for 1/4 and 1/3-in. formats. They are suitable for camera applications.