Brazil's Oscar put Chelsea ahead on 13 minutes, slotting home low past goalkeeper Allan McGregor from Kevin de Bruyne's though-ball into the box.
Lampard, who had his sixth-minute penalty and also a 15th-minute shot saved by McGregor, eventually got on the scoresheet with a free kick that dipped in under the keeper's bar for a 2-0 lead in the 25th.
The newly installed goalline technology passed its first test when McGregor saved a header from Branislav Ivanovic on his line in first-half stoppage time and replays confirmed the keeper had clawed the ball out before it had fully crossed over.
(Reporting by Rex Gowar; Editing by Sonia Oxley)
