Imagine a professional football stadium buzzing with people interested in furniture design, and you get the general idea of what NeoCon is all about. The 41st annual event began Monday and continues through today in Chicago’s Merchandise Mart. New this year is the Light! pavilion and conference, which will feature leading edge lighting products specifically developed for use in healthcare, hospitality and commercial settings. More than 50,000 people are expected to be on hand this year, according to show organizers. With more than 1,200 exhibitors featuring interior design items, the conference will occupy more than 1.2 million square feet.