<ARTICLE> 5
<MULTIPLIER> 1
<CURRENCY> U.S. DOLLARS

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               DEC-31-1999
<EXCHANGE-RATE>                                      1
<CASH>                                      36,361,621
<SECURITIES>                                         0
<RECEIVABLES>                                3,585,824
<ALLOWANCES>                                    65,000
<INVENTORY>                                  6,876,002
<CURRENT-ASSETS>                            48,626,404
<PP&E>                                      14,346,200
<DEPRECIATION>                               9,370,156
<TOTAL-ASSETS>                              53,727,504
<CURRENT-LIABILITIES>                        5,317,132
<BONDS>                                              0
<PREFERRED-MANDATORY>                           65,382
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                  48,380,299
<TOTAL-LIABILITY-AND-EQUITY>                53,787,504
<SALES>                                     15,345,787
<TOTAL-REVENUES>                            16,603,022
<CGS>                                       11,885,547
<TOTAL-COSTS>                               12,328,625
<OTHER-EXPENSES>                             3,437,012
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              43,280
<INCOME-PRETAX>                                837,385
<INCOME-TAX>                                    10,256
<INCOME-CONTINUING>                            827,129
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   827,129
<EPS-BASIC>                                       0.11
<EPS-DILUTED>                                     0.11