<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED FINANCIAL STATEMENTS FOR THE FISCAL YEARS ENDED SEPTEMBER 30, 1996
ADN 1997. ON NOVEMBER 26, 1997 THE COMPANY ACQUIRED TINSLEY LABORATORIES, INC.
(TLI) AND HAS ACCOUNTED FOR THE TRANSACTION AS A POOLING OF INTERESTS. ALL
AMOUNTS BELOW HAVE BEEN RESTATED TO INCLUDE TLI.
</LEGEND>
<RESTATED> 
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   YEAR                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1996             SEP-30-1997
<PERIOD-START>                             OCT-01-1995             OCT-01-1996
<PERIOD-END>                               SEP-30-1996             SEP-30-1997
<CASH>                                         219,787                 129,689
<SECURITIES>                                    43,220                  76,972
<RECEIVABLES>                                  160,015                 152,588
<ALLOWANCES>                                     6,078                   6,794
<INVENTORY>                                    215,015                 228,453
<CURRENT-ASSETS>                               649,148                 594,278
<PP&E>                                         161,458                 248,095
<DEPRECIATION>                                  73,593                  97,110
<TOTAL-ASSETS>                                 744,257                 756,017
<CURRENT-LIABILITIES>                          182,511                 173,519
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                       379,553                 399,663
<OTHER-SE>                                     171,493                 173,447
<TOTAL-LIABILITY-AND-EQUITY>                   744,257                 756,017
<SALES>                                        657,337                 614,226
<TOTAL-REVENUES>                               657,337                 614,226
<CGS>                                          383,715                 378,114
<TOTAL-COSTS>                                  383,715                 378,114
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                 756                   1,018
<INCOME-PRETAX>                                 99,901                   4,198
<INCOME-TAX>                                    35,022                   1,514
<INCOME-CONTINUING>                             64,153                   2,592
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    64,153                   2,592
<EPS-PRIMARY>                                     2.12<F1>                0.08<F1>
<EPS-DILUTED>                                     2.10                    0.08
<FN>
<F1>EPS PRIMARY IS USED FOR EPS BASIC. WHERE APPLICABLE, MINORITY INTEREST HAS BEEN
ADDED TO OR DEDUCTED FROM AFTER-TAX INCOME TO ARRIVE AT NET INCOME.
</FN>
        

</TABLE>