The Digital Lumens team includes seasoned entrepreneurs and lighting industry innovators with deep business and domain expertise.

Tom Pincince

President and CEO

With a track record of entrepreneurial and corporate success, Tom is responsible for overall strategy and management of Digital Lumens. Prior to joining the company, Tom was President, Chief Executive Officer and Founder of Brix Networks, a global provider of converged service assurance solutions that was acquired by EXFO to serve as the foundation for its service assurance market entry. Previously, Tom was the Founder of New Oak Communications, a pioneering leader in Virtual Private Network (VPN) switches, which was subsequently acquired by Bay Networks (now Nortel Networks) to create the Contivity Extranet Switch product family.

Before starting New Oak, Tom was an industry analyst, serving as Director of Forrester Research’s Network Strategy Service, where he focused on the commercial use of the Internet, and defined the market for corporate intranets and the possibilities of private data services over the public Internet. Earlier in his career, he held marketing and engineering positions of increasing responsibility at several Boston-area technology companies.

Tom also serves on the Board of Trustees of the Boston Museum of Science. He holds a Bachelor of Science in Neural Science from Brown University, where he was also a founding board member of the Brown Entrepreneurship Program.


Brian Chemel

Co-Founder and CTO

Brian leads product strategy, intellectual property, and software development efforts for Digital Lumens, leveraging his extensive technical and entrepreneurial background in the field of solid-state lighting. Prior to starting Digital Lumens, he was a technical lead and development team manager as Director of Control Product Development at Color Kinetics, the pioneer of intelligent LED illumination systems, which was acquired by Philips Lighting in 2007.

Prior to his time in the lighting industry, Brian designed autonomous mobile robotic systems as a researcher at the National Robotics Engineering Consortium for clients including DARPA and the U.S. Department of Energy. He has also co-authored more than a dozen US and international patents in the fields of solid-state lighting, embedded controls, and robotics.

Brian holds a Master of Science in Robotics and a Bachelor of Science in Computer Science, both from Carnegie Mellon University.


Mike Rubino

Chief Financial Officer

Mike Rubino brings more than 25 years of experience leading the financial and operational aspects of high-growth private and public companies, including manufacturing infrastructure development and international expansion. He has also successfully managed multiple acquisitions and integrations of privately held organizations into larger companies.

Mike serves as Chief Financial Officer and Vice President of Finance and Administration at Digital Lumens, which he joins from A123 Systems, a leading developer and manufacturer of advanced technology lithium-ion battery packs for the transportation, electric grid, and commercial markets. While there, he was CFO and Vice President of Finance and Administration, managing multiple capital raises and a successful IPO. In addition, he played a key role in the build out of the company’s global supply chain and manufacturing strategy, which included the company’s first footprint in Asia.

Prior to joining A123 Systems, Mike served as CFO of Maker Communications, a semiconductor company focused on networking switches, where he managed the IPO and subsequent acquisition by Conexant Systems. Mike was previously CFO of Agile Networks, an ATM switches manufacturer, later acquired by Lucent Technologies. Rubino also served as CFO of Ellacoya Networks, a packaged portal service company, and Telephotonics, an optical components provider, which was acquired by DuPont.

Mike holds a B.S. in Business Administration from the University of South Carolina.


Denis Cho

Vice President of Worldwide Sales

A seasoned technology executive, Denis is responsible for the company’s worldwide sales strategy and teams in North America, EMEA, Latin America, and Asia. He previously served as Vice President of International Sales, successfully introducing Digital Lumens’ solutions to customers around the globe and building a growing network of Digital Lumens Authorized Partners.

Denis joined Digital Lumens from Exfo Inc., where he served as Director of Asia Pacific Sales for this leading provider of test and service assurance solutions for network operators and equipment manufacturers in the telecommunications industry. Prior to Exfo, Denis was a Market Development Manager for Nortel Networks, a communications infrastructure provider, and previously held Business Development and Marketing Programs roles at Forrester Research and Cayman Systems.

Denis holds a B.S. in Marketing and Management from Northeastern University.


Colin Piepgras

Co-Founder and Vice President of Engineering

With over a decade of experience in the development of innovative solid state lighting systems, Colin heads the engineering team and product execution at Digital Lumens. Prior to Co-founding Digital Lumens, Colin led Mechanical and Concept development teams at Color Kinetics (acquired by Philips Lighting in 2007), designing solid-state lighting, thermal and optical sub-systems, and controls. He has a deep knowledge of overseas development and manufacturing.

Earlier in his career, Colin designed mobile robots for DARPA and the Department of Energy as a researcher at the National Robotics Engineering Consortium, and Carnegie Mellon’s Field Robotics Center, and special effects for the movie industry at Industrial Light & Magic. He holds more than 18 US and international patents in the fields of solid-state lighting and robotics.

Colin holds a Master of Fine Arts from Carnegie Mellon University and a Bachelor of Fine Arts from Kansas City Art Institute.