Some articles on optrotech:

Orbotech - Corporate History - Merger of Optrotech and Orbot
... due to a slowdown in the global AOI market Optrotech and Orbot started discussing a merge of their complementary operations ... In August 1992, Optrotech and Orbot reached a merger agreement, in which Optrotech absorbed Orbot, excluding its semiconductor subsidiary Orbot Instruments (which was later sold to Applied ...