Exhibit 3.1

        Article 4.1 of the Articles of Incorporation of PPT Vision, Inc.,
        as amended March 10, 2005:

4.1     Authorized Capital Stock - The authorized capital stock of this
        corporation shall be Five Million (5,000,000) shares of Common Stock
        with $.10 par value per share and Ten Million (10,000,000) shares of
        Preferred Stock with no par value per share. In accordance with the
        Statutes of the State of Minnesota, the Board of Directors may subdivide
        the Common Stock and Preferred Stock into one or more series and may
        designate the relative rights and preferences of the different classes
        and series to the extent the relative rights and preferences of the
        different classes and series are not otherwise fixed in the Articles,
        including with respect to the Preferred Stock, the right to create
        voting, dividend and liquidation preferences greater than those of the
        Common Stock. All shares are to be held, sold and paid for at such times
        and in such manner as the Board of Directors may from time to time
        determine, in accordance with the statutes of Minnesota.