Sprague to Lead Imagek

Peter J. Sprague, former chairman of National Semiconductor Corp., has been named chairman of Imagek Inc., a subsidiary of Costa Mesa-based Irvine Sensors Corp. Sprague will assist in the formation of Imagek’s initial management team and its financing.

Imagek was created to handle the company’s electronic film system, which allows 35-millimeter cameras to take digital photographs without modification.