Scientist Willard Boyle Dies

Robert Siegel talks with electrical engineering and computer science professor Ruzena Bajcsy about one of the inventors of the C.C.D. — the charged coupling device. Scientist Willard Boyle's creation is found in bar code scanners, digital photography, medical endoscopes and the Hubble Space Telescope. Boyle, who won a Nobel Prize for his invention, recently died at age 86.