PROSPECTUS SUPPLEMENT                  Registration No. 333-16591
                                           Filed Pursuant to Rule
                                        424(b)(3) and Rule 424(c)




                   LOGIC DEVICES INCORPORATED

         Supplement To Prospectus dated January 8, 1997

                     Shares of Common Stock



                      SELLING SHAREHOLDERS

      On  May 17, 1999, Howard Farkas sold 100,000 shares  in  an
open  market transaction at a price of $3.25 per share.   On  May
18,  1999,  Albert Morrison, Jr. sold 20,000 shares  in  an  open
market  transaction at a price of $3.25 per  share.   Both  sales
were  made  through  T.R. Winston & Company  Incorporated,  which
acted as agent in the sale by Mr. Farkas and as principal in  the
sale  by  Mr.  Morrison.   T.R. Winston  &  Company  Incorporated
received  no remuneration from either of the sellers.   Following
these  sales, no other shares owned by Mr. Farkas are covered  by
this  prospectus and 877 other shares owned by Mr.  Morrison  are
covered by this prospectus.

      In  addition,  this prospectus covers the sales  of  31,850
shares by First Bermuda Securities Limited, 1,250 shares by Aries
Peak, Inc. and 1,250 shares by Pacific Miners Ltd.  The shares to
be  sold  by  First  Bermuda Securities Limited  were  obtainable
through  the exercise of a warrant to purchase shares  of  common
stock  which expired August 21, 1998.  The shares to be  sold  by
Aries  Peak, Inc. and Pacific Miners Ltd. were obtainable through
the exercise of warrants to purchase shares of common stock which
expired September 19, 1998.  Since these warrants expired without
exercise, none of the foregoing 34,350 shares will be sold  under
this prospectus.

     The date of this Prospectus Supplement is June 8, 1999.