This video appears to show that Korea knew how to do it in 2012:
http://www.youtube.com/watch?v=xQI2mcFOn_c
http://www.youtube.com/watch?v=xQI2mcFOn_c
ianwood said:http://www.dragoninnovation.com/projects/32-pulsedlight-single-board-range-finder-minimodule