<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                           4,222
<SECURITIES>                                     1,873
<RECEIVABLES>                                      232
<ALLOWANCES>                                         0
<INVENTORY>                                        603
<CURRENT-ASSETS>                                 7,704
<PP&E>                                           4,223
<DEPRECIATION>                                 (3,083)
<TOTAL-ASSETS>                                   9,056
<CURRENT-LIABILITIES>                            2,329
<BONDS>                                            118
<PREFERRED-MANDATORY>                            2,036
<PREFERRED>                                          0
<COMMON>                                            13
<OTHER-SE>                                       4,526
<TOTAL-LIABILITY-AND-EQUITY>                     9,056
<SALES>                                            537
<TOTAL-REVENUES>                                   537
<CGS>                                            1,049
<TOTAL-COSTS>                                    1,049
<OTHER-EXPENSES>                                 3,491
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                (67)
<INCOME-PRETAX>                                (3,800)
<INCOME-TAX>                                       (2)
<INCOME-CONTINUING>                            (3,802)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (3,862)
<EPS-PRIMARY>                                   (0.29)
<EPS-DILUTED>                                   (0.29)