<ARTICLE> 5
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                           9,465
<SECURITIES>                                     4,867
<RECEIVABLES>                                    5,306
<ALLOWANCES>                                     (145)
<INVENTORY>                                      4,227
<CURRENT-ASSETS>                                25,215
<PP&E>                                          13,271
<DEPRECIATION>                                 (9,799)
<TOTAL-ASSETS>                                  30,878
<CURRENT-LIABILITIES>                            8,732
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            13
<OTHER-SE>                                      22,133
<TOTAL-LIABILITY-AND-EQUITY>                    30,878
<SALES>                                         16,065
<TOTAL-REVENUES>                                16,065
<CGS>                                            6,425
<TOTAL-COSTS>                                    6,425
<OTHER-EXPENSES>                                12,940
<LOSS-PROVISION>                                    20
<INTEREST-EXPENSE>                                 (1)
<INCOME-PRETAX>                                (3,074)
<INCOME-TAX>                                        95
<INCOME-CONTINUING>                            (3,169)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (3,169)
<EPS-BASIC>                                     (0.24)
<EPS-DILUTED>                                   (0.24)