0000944209-00-001591 DEF 14A 1 20001116 20001016 OSI SYSTEMS INC 0001039065 3674 330238801 CA 0630 DEF 14A 34 000-23125 741040 12525 CHADRON AVE HAWTHORNE CA 90250 3109780516 12525 CHADRON AVENUE HAWTHORNE CA 90250 DEF 14A 1 0001.txt DEFINITIVE PROXY STATEMENT 14A