EXHIBIT 11.1 ADAC LABORATORIES COMPUTATION OF NET INCOME PER SHARE (IN THOUSANDS, EXCEPT PER SHARE DATA) (UNAUDITED) THREE MONTHS ENDED NINE MONTHS ENDED ------------------ ------------------ JUNE 29, JUNE 30, JUNE 29, JUNE 30, 1997 1996 1997 1996 -------- -------- -------- -------- Average shares outstanding 18,587 17,485 18,306 17,238 Net effect of dilutive stock options and warrants 1,188 918 1,230 890 ------- ------- ------- ------- Average common and common equivalent shares outstanding 19,775 18,403 19,536 18,128 ======= ======= ======= ======= Net income $ 106 $ 4,353 $10,751 $11,832 ======= ======= ======= ======= Net income per share $ 0.01 $ 0.24 $ 0.55 $ 0.65 ======= ======= ======= ======= Primary and fully diluted income per share differs by less than three percent in all periods.