Natick, Mass.-based Cognex Corp. announced it has hired former Danaher Corp. executive Robert Willett as president of its Modular Vision Systems Div. (MVSD), which makes vision systems, sensors and ID readers used to automate the manufacture of a variety of products and assure their quality. At Danaher, a provider of professional instrumentation, industrial technologies, and tools and components, Willett served as group vice president of business development and innovation for the Product Identification business group. Before that, he served as president of Videojet Technologies, a Danaher subsidiary, and, prior to that, as CEO of Willett International Ltd., a coding and marking company he sold to Danaher in 2003 that merged with Videojet.