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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-K

(Mark One)
     [ X ] Annual report pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934 for the fiscal year ended December 31, 1998 or

     [ ]  Transition report pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934 for the transition period from 
to                                                  ----------------------
   -------------------------- 

                         COMMISSION FILE NUMBER 0-17869
                                                -------

                               COGNEX CORPORATION
          -------------------------------------------------------------
             (Exact name of registrant as specified in its charter)


                       MASSACHUSETTS                     04-2713778
            ------------------------------------   ----------------------
              (State or other jurisdiction of          (I.R.S. Employer
              incorporation or organization)           Identification No.)


                                ONE VISION DRIVE
                        NATICK, MASSACHUSETTS 01760-2059
                                 (508) 650-3000
           ------------------------------------------------------------
               (Address, including zip code, and telephone number,
              including area code, of principal executive offices)



Securities registered pursuant to Section 12(b) of the Act:  None

Securities registered pursuant to Section 12(g) of the Act:  Common Stock

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days.

          Yes     X                                     No
             ---------                                    --------------

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of the registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K. [ ]

          Aggregate market value of voting stock held by non-affiliates
                     as of February 28, 1999: $1,008,663,000

                 $.002 par value common stock outstanding as of
                      February 28, 1999: 40,346,520 shares

Documents incorporated by reference:
Specifically identified information in the Annual Report to Stockholders for the
year ended December 31, 1998, is incorporated by reference into Parts I and II
hereof.

Specifically identified information in the definitive Proxy Statement for the
Special Meeting in Lieu of the 1999 Annual Meeting of Stockholders to be held on
April 27, 1999, is incorporated by reference into Part III hereof.

A list of Exhibits to this Annual Report on Form 10-K is located on page 18.

================================================================================
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                       COGNEX CORPORATION ANNUAL REPORT ON
                 FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 1998


                                      INDEX


   PART I
   ITEM 1.      BUSINESS
   ITEM 2.      PROPERTIES
   ITEM 3.      LEGAL PROCEEDINGS
   ITEM 4.      SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
   ITEM 4A.     EXECUTIVE OFFICERS AND OTHER MEMBERS OF THE MANAGEMENT TEAM
                OF THE REGISTRANT

   PART II
   ITEM 5.      MARKET FOR THE REGISTRANT'S COMMON EQUITY AND RELATED
                STOCKHOLDER MATTERS
   ITEM 6.      SELECTED FINANCIAL DATA
   ITEM 7.      MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
                RESULTS OF OPERATION
   ITEM 7A.     QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
   ITEM 8.      FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
   ITEM 9.      CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING
                AND FINANCIAL DISCLOSURE

   PART III
   ITEM 10.     DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
   ITEM 11.     EXECUTIVE COMPENSATION
   ITEM 12.     SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND
                MANAGEMENT
   ITEM 13.     CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

   PART IV
   ITEM 14.     EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K



                                       
  
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                                   PART I

   The Company's results are subject to certain risks and uncertainties. This
   Annual Report on Form 10-K contains certain forward-looking statements within
   the meaning of the Federal Securities Laws. The Company's future results may
   differ materially from current results and actual results may differ
   materially from those projected in the forward-looking statements as a result
   of certain risk factors. Readers should pay particular attention to
   considerations described in the section captioned "Forward-Looking
   Statements" in Management's Discussion and Analysis of Financial Condition
   and Results of Operations appearing on page 18 of the Annual Report to
   Stockholders for the year ended December 31, 1998, which is Exhibit 13
   hereto, and is incorporated herein by reference, as well as considerations
   included in other documents filed with the Securities and Exchange
   Commission.

   ITEM 1.  BUSINESS

   CORPORATE PROFILE

        Cognex(R) Corporation ("Cognex" or the "Company," each of which term
   includes, unless the context indicates otherwise, Cognex Corporation and its
   subsidiaries) was incorporated in Massachusetts in 1981. Its principal
   executive offices are located at One Vision Drive, Natick, Massachusetts
   01760 and its telephone number is (508) 650-3000.
        The Company designs, develops, and markets machine vision systems that
   are used to automate a wide range of manufacturing processes where vision is
   required. Cognex machine vision systems consist of two primary elements: a
   computer, which serves as a "machine vision engine," and software that
   processes and analyzes images. When connected to a video camera, the machine
   vision system captures images and extracts information, which determines
   appropriate action for other equipment in the manufacturing process.
        Machine vision systems are used in a variety of industries including the
   semiconductor, electronics, automotive, consumer products, metals, plastics,
   and paper industries. Machine vision is important for applications in which
   human vision is inadequate due to fatigue, visual acuity, or speed, or in
   instances where substantial cost savings are obtained through the reduction
   of direct labor and improved product quality. Today, many types of
   manufacturing equipment require machine vision because of the increasing
   demands for speed and accuracy in manufacturing processes, as well as the
   decreasing size of items being manufactured.

   WHAT IS MACHINE VISION?

        In a typical machine vision application, a video camera positioned on
   the production line captures an image of the part to be inspected. The
   machine vision computer then uses sophisticated image analysis software to
   extract information from the image and provide an answer to a question.
   Cognex machine vision systems can answer four types of questions:




     QUESTION              DESCRIPTION                            EXAMPLE
     --------              -----------                            -------

     GUIDANCE
     --------

                                                            
     Where is it?          Determining the exact physical         Determining the position of a printed circuit board
                           location of an object.                 so that a robot can automatically be guided to
                                                                  insert electronic components.


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     IDENTIFICATION
     --------------
                                                            
     What is it?           Identifying an object by analyzing     Identifying the serial number on an automotive
                           its shape or by reading a serial       airbag so that it can be tracked and processed
                           number.                                correctly through manufacturing.

     INSPECTION
     ----------

     How good is it?       Inspecting an object for flaws or      Inspecting the quality of printing on
                           defects.                               pharmaceutical labels and packaging.


     GAUGING      
     -------
     What size is it?      Determining the dimensions of an       Determining the diameter of a bearing prior to
                           object.                                final assembly.



        Once the machine vision system has processed the image and performed any
   necessary analysis, the result is then communicated to other equipment on the
   factory floor, such as an industrial controller, a robotic arm, a deflector
   which removes the part from the line, a positioning table which moves the
   part, or alternatively, to a computer file for analysis or subsequent process
   control. This process is repeated during the manufacturing process as product
   moves into position in front of the camera. Machine vision systems can
   perform inspections quickly enough to keep pace with machines that process
   thousands of items or material feet per minute, thus increasing both quality
   and productivity.

   THE MACHINE VISION MARKET

        The machine vision market consists of two customer types: original
   equipment manufacturers (OEMs) and end users. OEMs are companies that build
   standard products sold as capital equipment for end users on the factory
   floor. These customers, most of which are in the semiconductor and
   electronics industries, have the technical expertise to build Cognex's
   programmable, board-level machine vision systems directly into their products
   which are then sold to end users.
        End users are companies that manufacture products, such as radios,
   telephones, ball-point pens, metals, and paper. While they may purchase
   capital equipment containing machine vision or hire a system integrator to
   build an inspection system, many end users choose to purchase machine vision
   directly for specific applications on their production lines. Unlike OEMs and
   system integrators, these customers typically have little or no computer
   programming or machine vision experience.
        System integrators are companies that create complete, automated
   inspection solutions for end users on the factory floor. For example, they
   combine lighting, conveyors, robotics, machine vision, and other components
   to produce custom inspection systems for various applications. Because system
   integrators encounter a broad range of automation problems, they purchase a
   variety of Cognex products, from general-purpose systems to
   application-specific systems tailored to solve particular manufacturing
   tasks. The Company includes system integrators in its definition of end
   users.

   BUSINESS STRATEGY

        The Company's goal is to expand its position as a leading worldwide
   supplier of machine vision systems for factory automation. Currently, the
   Company's products are designed for factory automation because the Company
   believes that this market offers the greatest opportunity for selling high
   value-added, standard products in high volume. Within the factory automation
   market, the Company has historically focused primarily on those customers who
   must have machine vision because of the increasing complexity of their
   products or manufacturing methods.




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        Emphasizing high value-added products and applications is important to
   the Company's strategy because not every segment of the machine vision market
   offers opportunity for sustained profitability. High value-added is realized
   in the Company's products in several ways. The primary value-added is derived
   from offering unique vision software algorithms which solve challenging
   problems better than competing products. The other major mode of realizing
   high value-added is by offering products which are complete solutions to
   known problems, incorporating all of the necessary vision software,
   applications software, hardware, and electro-optics. Both modes of realizing
   high value-added require the Company to maintain an industry-leading level of
   investment in research, development, and engineering.
        Within the factory automation market, the Company has tailored its
   product offerings to match the characteristics of its two customer types:
   OEMs and end users. Historically, OEMs have been the source of the majority
   of the Company's sales. However, the Company believes that end users have the
   potential in the long term to generate more sales than OEMs. Consequently,
   the Company has invested in developing and acquiring products which meet the
   needs of end users and in developing a strong worldwide direct sales and
   support infrastructure. The Company will continue to invest in both customer
   types, defending its strong position in the OEM market while expanding in the
   end user market.
         The Company has historically pursued a global business strategy,
   investing in building a strong direct presence in North America, Japan,
   Europe, and Southeast Asia. In 1998, approximately 63% of the Company's
   revenue came from customers based outside of the United States. In all of
   these regions, the Company is acknowledged to be a leading machine vision
   supplier. The Company intends to continue to invest in the expansion of
   direct sales and support in these regions.
        The factory automation market for machine vision is comprised of many
   market niches defined by differing application requirements, industries, and
   cost/performance criteria. The Company's business strategy includes selective
   expansion into other industrial machine vision applications through the
   internal development of new products and the acquisition of companies and
   technologies. The Company's acquisitions to date include Acumen, Inc., a
   developer of machine vision systems for semiconductor wafer identification;
   Isys Controls, Inc., a developer of high-performance machine vision systems
   for high-speed surface inspection; Mayan Automation, Inc., a developer of
   intelligent camera-based machine vision systems for surface inspection; and
   certain technology of Rockwell Automation's Allen-Bradley machine vision
   business, which supplied machine vision systems to end users.

   PRODUCTS

        The Company designs, develops, and markets a wide range of machine
   vision products. These products include modular vision systems that are used
   to control the manufacturing of discrete items, such as semiconductor chips,
   cellular phones, and automobile wheels, by locating, identifying, inspecting,
   and measuring them during the manufacturing process. The Company's product
   offerings also include surface inspection vision systems that are used to
   inspect surfaces of materials that are manufactured in a continuous fashion,
   such as plastics, metals, and paper, to ensure that there are no flaws or
   defects on the surfaces.
        Machine vision systems sold by the Company are defined as either
   general-purpose or application-specific products. General-purpose systems
   enable customers to solve a wide range of problems by selecting the tools
   necessary to solve their vision problem from the Company's vision software
   library, and then configuring their solution by utilizing a programmable
   language or point-and-click interface. Application-specific systems are
   "packaged" combinations of software and hardware that are designed to solve
   targeted problems without any customization by the Company or its customers.

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        GENERAL-PURPOSE SYSTEMS
        Vision Software Library
        The Company offers an extensive library of machine vision software which
   includes both low-level image processing software and high-level image
   analysis tools. The image processing software prepares the image for accurate
   analysis and the image analysis tools extract information about the image to
   locate, measure, and identify objects, characters, and codes. In 1997, the
   Company introduced PatMaxTM, a pattern location tool that can locate with
   very high accuracy objects that vary in size and orientation or whose
   appearance is degraded. In 1998, the Company introduced PatInspectTM, a
   vision software tool that combines high-accuracy part location and defect
   detection capabilities in a single vision operation and detects flaws along
   the edges or boundary regions of objects.
        MVS-8000 product family
        In 1998, the Company introduced its next generation of vision systems
   (programmable in C++ language), the MVS-8000 product family, which combines
   Cognex's unique algorithms with Intel's new MMX instruction set. Prior to
   this introduction, all of the Company's software ran only on its own
   proprietary hardware which was based on the Motorola 68k line of
   microprocessors. For host-based processing, the MVS-8100 Series features a
   PCI bus-mastering frame grabber for high-speed image transfer from the video
   camera to the host PC for processing and display. For embedded processing,
   the MVS-8200 Series of embedded CPU vision systems enable all vision
   processing to occur on-board, freeing the PC to perform other tasks. The
   MVS-8000 product family features Cognex's new Object Manager Interface (OMI),
   which provides a graphical interface to each tool in the Cognex vision
   software library.
        The MVS-8000 product family is sold primarily to OEMs located in North
   America and Japan who integrate the vision systems into manufacturing
   equipment for the semiconductor and electronics industries. These vision
   systems are also sold to system integrators located principally in North
   America, Japan, Europe, and Southeast Asia who integrate the vision systems
   into manufacturing equipment for the factory floor in industries ranging from
   automotive to consumer products.
        Checkpoint product family
        The Checkpoint(R) product family is designed for customers with little
   or no computer programming or machine vision experience. Checkpoint combines
   the Company's existing vision software and standard vision hardware platforms
   with a unique Microsoft Windows-based graphical user interface (GUI).
   Customers utilize pull-down menus and dialog boxes in the GUI to create
   customized vision applications. This easy-to-use, point-and-click programming
   environment enables the developer to focus on tasks associated with solving
   the overall vision application, freeing the developer from the detail and
   complexity of a programming language.
        Checkpoint is sold primarily to end users located in North America,
   Japan, Europe, and Southeast Asia in a wide range of general manufacturing
   industries, such as manufacturers of medical devices, automotive parts,
   disposable consumer goods, and electronic components. Although the
   application environment is designed for customers with little or no computer
   programming or machine vision experience, deployment of Checkpoint on the
   factory floor requires the services of trained system integrators to
   mechanically and electrically integrate Checkpoint into manufacturing lines.
        Other General-Purpose Systems
        The Company continues to offer vision systems (programmable in C
   language) that run on its own proprietary hardware including the Cognex 4000
   Series which plugs directly into a VME backplane, as well as the Cognex 5000
   Series which run on the PC.

                                       4
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        APPLICATION-SPECIFIC SYSTEMS
        The Company also offers a variety of application-specific systems that
   combine Cognex hardware and software to create a solution that is tailored to
   the particular requirements of certain vision applications. These products
   are sold to OEMs and end users worldwide. A partial list of
   application-specific systems is as follows:
        Surface Mount Device Placement Guidance Package (SMD/PGP), when coupled
   with a Cognex 4000, 5000, or 8000 Series vision system, quickly and
   accurately locates fiducial marks on printed circuit boards for alignment,
   inspects the quality of surface mount devices, and then guides the placement
   of those devices onto printed circuit boards. 
        acuReader/Optical Character Recognition (OCR) reads degraded serial
   numbers from semiconductor wafers with near 100% accuracy.
        acuReader/2D locates and decodes two-dimensional matrix codes. The
   two-dimensional codes are used as alternative marks for identifying wafers,
   integrated circuit packages, liquid crystal display (LCD) panels,
   pharmaceutical packages, and for small parts tracking applications.
        Ball Grid Array (BGA) Inspection Package inspects BGA devices for
   missing, misplaced, or improperly formed solder balls.
        Fiducial Finder II locates fiducial or alignment marks on printed
   circuit boards for automatic printed circuit board alignment.
        DisplayInspect software inspects the small, high resolution displays
   commonly found on cellular phones, pagers, medical test instruments, and
   other electronic devices.
        iS High Performance Inspection Systems detect and classify defects in
   the most challenging surface inspection applications. iS systems are built
   from a family of hardware and software components which include proprietary
   line-scan cameras with motorized camera mounts, specialized lighting systems,
   ultra-high performance image processing boards, Unix workstations, and
   intelligent defect detection and classification software algorithms. iS
   systems can contain from one to sixty cameras and can be used to inspect webs
   up to 25 feet wide at speeds of up to 5,000 feet per minute. iS systems are
   primarily sold to producers of metals, specialized coated paper, and
   high-value non-woven materials.
        Fine-Line(TM) Intelligent Camera Systems are complete surface
   inspection devices packaged in a compact and rugged enclosure. Each camera
   contains a line-scan charge-coupled device (CCD) sensor, image digitizer,
   digital signal processor (DSP), custom hardware for pixel processing, surface
   inspection algorithms in firmware, and a CPU for control and communications.
   In addition to the camera, the Company provides a PC-based operator
   interface, specialized lighting components, supporting mechanical components,
   and power supply/control boxes to provide customers with a complete solution
   to their surface inspection applications. Fine-Line systems can be used in a
   single-camera, "stand-alone" fashion for simple, narrow web applications, or
   they can be installed in multi-camera configurations to view wider webs.
   Fine-Line systems are targeted primarily at the plastics, non-wovens, and
   converting markets.
        SmartView(TM) Modular Camera Network (MCN), introduced in 1998, detects,
   measures, and classifies defects on products made in continuous processes.
   SmartView systems have a drag-and-drop Windows NT-based interface with some
   of the features previously only associated with high-end systems. In addition
   to providing flexibility, the systems offers more power than its predecessor,
   the Fine-Line Intelligent Camera System, and has enabled the Company to
   expand into more complex applications, including the inspection of high-end
   plastics and non-wovens.

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   RESEARCH, DEVELOPMENT, AND ENGINEERING

        The Company engages in research, development, and engineering (R, D & E)
   to enhance its existing products and to develop new products and
   functionality to meet market opportunities. In addition to internal research
   and development efforts, the Company intends to continue its strategy of
   gaining access to new technology through strategic relationships and
   acquisitions where appropriate. The Company considers its on-going efforts in
   R, D & E to be a key component of its strategy.
        At December 31, 1998, the Company employed 152 professionals in R, D &
   E, most of whom are software developers. The Company's R, D & E expenses
   totaled $24,662,000, $22,481,000, and $19,434,000, or 20%, 14%, and 16% of
   revenue, in 1998, 1997, and 1996, respectively.

   MANUFACTURING

        The majority of the Company's vision systems are manufactured at its
   Natick, Massachusetts headquarters. The Company's Natick manufacturing
   organization utilizes a turnkey manufacturing operation whereby the majority
   of component procurement, subassembly, final assembly, and initial testing
   are performed under agreement by third-party contractors. After the
   completion of initial testing, the third-party contractors deliver the
   products to the Company to perform final testing and assembly. The products
   provided by the third-party contractors are manufactured using specified
   components and assembly and test documentation created and controlled by the
   Company. Certain components purchased by the third-party contractors are
   presently available from a single source.
        The Company's iS High Performance Inspection systems are manufactured at
   its Alameda, California facility and its Fine-Line Intelligent Camera systems
   and SmartView Modular Camera Network systems are manufactured at its
   Montreal, Canada facility. The manufacturing processes at the Alameda and
   Montreal facilities consist of systems design, configuration management and
   control, component procurement, subassembly, integration and final test,
   quality control, shipment, and installation. Certain products are
   manufactured by third-party contractors using assembly and test documentation
   created and controlled by the Company. Certain components purchased by the
   third-party contractors are presently available from a single source.

   SALES AND SUPPORT

        The Company markets its products through a direct sales force in North
   America, and through a direct sales force and distributors in Japan, Europe,
   and Southeast Asia. The Company's distributors do not have any rights of
   return and payment for products is due upon delivery. Distributors generally
   have non-exclusive distribution rights and there may be more than one
   distributor per territory.
        At December 31, 1998, the Company's direct sales and service force
   consisted of 130 professionals, including sales and application engineers.
   The majority of the Company's sales and service personnel have engineering or
   science degrees. Sales engineers call directly on targeted accounts and
   coordinate the activity of the application engineers. They focus on potential
   customers that represent possible volume purchases and long-term
   relationships. Opportunities that represent single-unit sales or turnkey
   system requirements are identified by the sales engineer and turned over to
   an independent system integrator or OEM that uses the Company's products. The
   Company sells to OEMs, many of whom have entered or are expected to enter
   into volume discount contracts with the Company. These contracts are
   typically for one year and have associated delivery schedules.
        Sales to international customers represented approximately 63%, 62%, and
   55% of revenue in 1998, 1997, and 1996, respectively. One customer based in
   Japan, Fuji America Corporation, accounted for approximately 14%, 18%, and
   11% of revenue in 1998, 1997, and 1996, respectively. Information about
   operating segments and geographic areas, as well as foreign currency and
   related

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   risk may be found in the Notes to the Consolidated Financial Statements,
   appearing on page 37 and pages 24 through 26 of the Annual Report to
   Stockholders for the year ended December 31, 1998, which is Exhibit 13
   hereto, and is incorporated herein by reference. Although international sales
   may from time to time be subject to federal technology export regulations,
   the Company to date has not suffered delays or prohibitions in sales to any
   of its foreign customers.
        The Company's support offerings include vision solutions consulting
   services, technical support, educational services, and product services. The
   Company's vision solutions consulting services provides, for a fee, services
   which range from a specific piece of programmed functionality to a completely
   integrated machine vision application. The technical support group consists
   of a team of vision experts ready to respond to questions that may arise
   while customers are developing or deploying a Cognex machine vision
   application. The educational services group offers more than 50 different
   product courses which are held at its Customer Education Center in Natick,
   Massachusetts, and at certain of its worldwide offices, as well as at
   customer facilities when required. The product services group offers a
   variety of software and hardware maintenance programs that provide updates on
   the latest software releases and new software vision tools.
   
   PATENTS AND LICENSES

        Since the Company relies on the technical expertise, creativity, and
   knowledge of its personnel, it utilizes patent, copyright, and trade secret
   protection to safeguard its competitive position. The Company has obtained 39
   patents on various innovations in the field of machine vision technology and
   has over 100 pending patent applications. In addition, the Company makes use
   of non-disclosure agreements with customers, suppliers, employees, and
   consultants. The Company attempts to protect its intellectual property by
   restricting access to its proprietary information by a combination of
   technical and internal security measures. However, there can be no assurance
   that any of the above measures will be adequate to protect the proprietary
   technology of the Company. Effective patent, copyright, and trade secret
   protection may be unavailable in certain foreign countries.
        The Company's trademark portfolio includes various common-law and
   registered marks, including but not limited to Cognex(R) , Checkpoint(R) ,
   PatMax(TM), PatInspect(TM), Fine-Line(TM), and SmartView(TM). In addition,
   the Company has sought and obtained a number of trademark registrations
   outside of the United States. All third-party brand names, service marks, and
   trademarks referenced in this document are the property of their respective
   owners.
        The Company's software products are primarily licensed to customers
   pursuant to a license agreement that restricts the use of the products to the
   customer's purposes on a designated Cognex machine vision engine. The Company
   has made portions of the source code available to certain customers under
   very limited circumstances and for restricted uses. If source code is
   released to a customer, the customer is required by contract to maintain its
   confidentiality and, in general, to use the source code solely for internal
   purposes or for maintenance.
        Numerous users of the Company's products have received notice of patent
   infringement from the Lemelson Medical, Educational, & Research foundation,
   Limited Partnership ("Partnership") alleging that their use of the Company's
   products infringes certain patents transferred to the Partnership by the late
   Jerome H. Lemelson. Certain of these users have notified the Company that, in
   the event it is subsequently determined that their use of the Company's
   products infringes any of the Partnership's patents, they may seek
   indemnification from the Company for damages or expenses resulting from this
   matter.
        In July 1998, the Partnership filed a lawsuit against 26 semiconductor
   device manufacturers asserting infringement upon numerous Lemelson patents
   including certain machine vision patents. Several of the defendants are users
   of the Company's products that were purchased primarily from the Company's
   OEM customers whose equipment incorporate such products. As a result of this
   action and the continuing assertions against other current and potential
   Cognex customers, the Company decided to initiate action against the
   Partnership in order to preserve its right to sell machine vision products

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   without the threat of legal action against the Company or its customers.
   Accordingly, on September 23, 1998, the Company filed a complaint against the
   Partnership seeking a declaration that Lemelson's machine vision patents are
   invalid, unenforceable, and not infringed by either Cognex or by any users of
   Cognex products. The complaint was served on the Partnership on October 14,
   1998. It will likely be several years before a decision is rendered by the
   Court. The Company cannot predict the outcome of this litigation or any
   similar litigation that may arise in the future, or the effect of such
   litigation on the financial results of the Company. The Company does not
   believe its products infringe any valid and enforceable claims of Lemelson's
   patents. Furthermore, the Partnership has stated that it is not the Company's
   products that infringe Lemelson's patents, but rather the use of those
   products by the Company's customers.

   COMPETITION

        The Company competes with other vendors of machine vision systems, the
   internal engineering efforts of the Company's current or prospective
   customers, and the manufacturers of image processing systems. Any of these
   competitors may have greater financial and other resources than the Company.
   Although the Company considers itself to be one of the leading machine vision
   companies in the world, reliable estimates of the machine vision market and
   the number of competitors are almost non-existent, primarily because of
   definitional confusion and a tendency toward double-counting of sales. The
   primary competitive factors affecting the choice of a machine vision system
   include product functionality and performance (e.g. speed, accuracy, and
   reliability) under real-world operating conditions, flexibility,
   programmability, and the availability of application support from the vendor.
   More recently, ease-of-use has become a competitive factor and product price
   has become a more significant factor with respect to simpler guidance and
   gauging applications. The Company competes with the lower-cost, software-only
   solutions being introduced by various competitors on the basis of superior
   performance and price, rather than on price alone, through its MVS-8000
   product family.

   BACKLOG

        At December 31, 1998, the Company's backlog totaled $17,216,000,
   compared to $32,618,000 at December 31, 1997. Backlog reflects purchase
   orders for products scheduled for shipment within three months. The level of
   backlog at any particular date is not necessarily indicative of future
   revenue of the Company. Delivery schedules may be extended and orders may be
   canceled at any time subject to certain cancellation penalties.

   EMPLOYEES

        At December 31, 1998, the Company employed 575 persons, including 237 in
   sales, marketing, and support activities; 152 in research, development, and
   engineering; 73 in manufacturing and quality assurance; and 113 in
   information technology, finance, and administration. Of the Company's 575
   employees, 168 are located outside of the United States. None of the
   Company's employees are represented by a labor union and the Company has
   experienced no work stoppages. The Company believes that its employee
   relations are good.


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   ITEM 2:  PROPERTIES

        In 1994, the Company purchased and renovated a 100,000 square-foot
   building located in Natick, Massachusetts which serves as its corporate
   headquarters. In 1997, the Company completed construction of a 50,000
   square-foot addition to this building.
        In 1995, the Company purchased an 83,000 square-foot office building
   adjacent to its corporate headquarters. The building is currently occupied
   with tenants who have lease agreements that expire at various dates through
   the year 2000, at which point, the Company may take occupancy of the
   building.
        In 1997, the Company purchased a three and one-half acre parcel of land
   situated on Vision Drive, adjacent to the Company's corporate headquarters.
   This land is anticipated to be used for future expansion.

   ITEM 3:  LEGAL PROCEEDINGS

        To the Company's knowledge, there are no pending legal proceedings,
   other than as described in "Business - Patents and Licenses," which are
   material to the Company to which it is a party or to which any of its
   property is subject. From time to time, however, the Company may be subject
   to various claims and lawsuits by customers and competitors arising in the
   normal course of business, including suits charging patent infringement.

   ITEM 4:  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

        There were no matters submitted during the fourth quarter of the year
   ended December 31, 1998 to a vote of security holders through solicitation of
   proxies or otherwise.

                                       9

   12


   ITEM 4A:  EXECUTIVE OFFICERS AND OTHER MEMBERS OF THE MANAGEMENT TEAM OF THE
   REGISTRANT

        The following table sets forth the names, ages, and titles of the
   Company's executive officers at December 31, 1998:



   NAME                          AGE           TITLE
   ----                          ---           -----

                                                                                                
   Robert J. Shillman            52            President, Chief Executive Officer, and Chairman of the
                                               Board of Directors
   Patrick Alias                 53            Executive Vice President, Worldwide Sales and Marketing
   Glenn Wienkoop                51            Executive Vice President, Chief Operating Officer



   Messrs. Shillman and Alias have been employed by the Company in their present
   or other capacities for no less than the past five years. 

   Mr. Wienkoop joined the Company in 1997 as Executive Vice President of
   Subsidiary Operations and was promoted to Executive Vice President and Chief
   Operating Officer in January 1999. From 1975 to 1997, he served in a number
   of capacities, most recently as Executive Vice President and Division
   President at Measurex Corporation, a supplier of computer-integrated
   measurement, control, and information systems for continuous manufacturing
   processes. 

   Executive officers are elected annually by the Board of Directors. There are
   no family relationships among the directors and the executive officers of the
   Company.

                      OTHER MEMBERS OF THE MANAGEMENT TEAM



   NAME                          AGE           TITLE
   ----                          ---           -----

                                                                                                 
   E. John McGarry               42            Vice President and General Manager - Portland Operations
   William Silver                45            Vice President and Chief Technology Officer


   Mr. Silver has been employed by the Company in his present or other
   capacities for no less than the past five years. 

   Mr. McGarry joined the Company in 1995 when the company he founded in 1991,
   Acumen, Inc., was acquired by Cognex. From 1991 to 1995, he served as
   President of Acumen, Inc., a developer of machine vision systems for
   semiconductor wafer identification.

                                       10


   13


                                     PART II

   ITEM 5:  MARKET FOR THE REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER
   MATTERS

        Certain information with respect to this item may be found in the
   section captioned "Selected Quarterly Financial Data," appearing on page 42,
   and the section captioned "Company Information," appearing on page 43 of the
   Annual Report to Stockholders for the year ended December 31, 1998, which is
   Exhibit 13 hereto, and is incorporated herein by reference.
        The Company has never declared or paid cash dividends on shares of its
   common stock. The Company currently intends to retain all of its earnings to
   finance the development and expansion of its business and therefore does not
   intend to declare or pay cash dividends on its common stock in the
   foreseeable future. Any future declaration and payment of dividends will be
   subject to the discretion of the Company's Board of Directors, will be
   subject to applicable law, and will depend upon the Company's results of
   operations, earnings, financial condition, contractual limitations, cash
   requirements, future prospects, and other factors deemed relevant by the
   Company's Board of Directors.

   ITEM 6:  SELECTED FINANCIAL DATA

        Information with respect to this item may be found in the section
   captioned "Five-Year Summary of Selected Financial Data," appearing on page
   19 of the Annual Report to Stockholders for the year ended December 31, 1998,
   which is Exhibit 13 hereto, and is incorporated herein by reference.

   ITEM 7:  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
   RESULTS OF OPERATIONS

        Information with respect to this item may be found in the section
   captioned "Management's Discussion and Analysis of Financial Condition and
   Results of Operations," appearing on pages 12 through 18 of the Annual Report
   to Stockholders for the year ended December 31, 1998, which is Exhibit 13
   hereto, and is incorporated herein by reference.

   ITEM 7A:  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

        The Company faces exposure to financial market risks, including adverse
   movements in foreign currency exchange rates and changes in interest rates.
   These exposures may change over time as business practices evolve and could
   have a material adverse impact on the Company's financial results. The
   Company's primary exposure has been related to local currency revenue and
   operating expenses in Japan, Europe, and Southeast Asia. Historically, the
   Company has hedged currency exposures associated with certain intercompany
   payables denominated in local currencies and certain foreign currency revenue
   transactions. The goal of the Company's hedging activity is to offset the
   impact of currency fluctuations on certain local currency intercompany
   payables and foreign currency revenue transactions. The success of this
   activity depends upon forecasts of transaction activity denominated in
   various currencies. To the extent that these forecasts are overstated or
   understated during periods of currency volatility, the Company could
   experience unanticipated currency gains or losses.
        Outstanding forward foreign exchange contracts in Japanese yen at
   December 31, 1998 mature within six months. Indicators as of February 1,
   1999, show that the dollar is expected to strengthen

                                       11
   14

   against the yen by June 30, 1999, to approximately 128 yen/USD. The
   hypothetical gain in cash flows of these yen forward contracts is estimated
   to be $976,000 using these assumptions.
            The carrying amounts reflected in the consolidated balance sheets of
   cash and cash equivalents, trade receivables, and trade payables approximate
   fair value at December 31, 1998 due to the short maturities of these
   instruments.
        The Company maintains investment portfolio holdings of various issuers,
   types, and maturities. The Company's cash and investments include cash
   equivalents, which the Company considers to be investments purchased with
   original maturities of three months or less. Investments having original
   maturities in excess of three months are stated at amortized cost, which
   approximates fair value, and are classified as available-for-sale. Given the
   short maturities and investment grade quality of the portfolio holdings at
   December 31, 1998, a sharp rise in interest rates should not have a material
   adverse impact on the fair value of the Company's investment portfolio. As a
   result, the Company does not currently hedge these interest rate exposures.
        The following table (dollars in thousands) presents hypothetical changes
   in fair value in the Company's financial instruments at December 31, 1998
   that are sensitive to changes in interest rates. The modeling technique
   measures the change in fair value arising from selected potential changes in
   interest rates. Movements in interest rates of plus or minus 50 basis points
   ("BP") and 100 BP reflect immediate hypothetical shifts in the fair value of
   these investments. Fair value represents the market principal plus accrued
   interest and dividends of certain interest-rate-sensitive securities at
   December 31, 1998.



  ------------------------- ------------------------------- ---------------- ----------------------------------------
                            Valuation of securities given    No change in       Valuation of securities given an
      Type of security        an interest rate decrease     interest rates           interest rate increase
  ------------------------- ------------------------------- ---------------- ----------------------------------------
  ------------------------- -------------- ---------------- ---------------- -------------------- -------------------
   
                              (100 BP)         (50 BP)                            50 BP               100 BP
  ------------------------- -------------- ---------------- ---------------- -------------------- -------------------
  ------------------------- -------------- ---------------- ---------------- -------------------- -------------------
                                                                                    
  Municipal obligations
  with contractual            $ 154,998       $ 156,016        $ 157,035          $ 158,054           $ 159,072
  maturities no greater
  than 3 years
  ------------------------- -------------- ---------------- ---------------- -------------------- -------------------


        A 50 BP move in the Federal Funds Rate has occurred in nine of the last
   40 quarters. There has not been a 100 BP movement in the Federal Funds Rate
   in any of the last 40 quarters.

   ITEM 8:  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

        Information with respect to this item, which includes the consolidated
   financial statements and notes thereto, report of independent accountants,
   and supplementary data, may be found on pages 19 through 42 of the Annual
   Report to Stockholders for the year ended December 31, 1998, which is Exhibit
   13 hereto, and is incorporated herein by reference.

   ITEM 9:   CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
   FINANCIAL DISCLOSURE

        There were no changes in or disagreements with accountants on accounting
   or financial disclosure during 1998 or 1997.

                                       12


   15


                                    PART III

   ITEM 10:  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

        Information with respect to Directors of the Company may be found in the
   section captioned "Election of Directors," appearing in the definitive Proxy
   Statement for the Special Meeting in Lieu of the 1999 Annual Meeting of
   Stockholders to be held on April 27, 1999. Such information is incorporated
   herein by reference. Information with respect to Executive Officers of the
   Company may be found in the section captioned "Executive Officers and Other
   Members of the Management Team of the Registrant," appearing in Part I of
   this Annual Report on Form 10-K.

   ITEM 11:  EXECUTIVE COMPENSATION

        Information with respect to this item may be found in the sections
   captioned "Information Concerning the Board of Directors,"
   "Compensation/Stock Option Committee Report on Executive Compensation,"
   "Comparison of Five Year Cumulative Total Returns Performance Graph for
   Cognex Corporation," and "Executive Compensation," appearing in the
   definitive Proxy Statement for the Special Meeting in Lieu of the 1999 Annual
   Meeting of Stockholders to be held on April 27, 1999. Such information is
   incorporated herein by reference.

   ITEM 12:  SECURITY OWNERSHIP AND CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

        Information with respect to this item may be found in the sections
   captioned "Principal Holders of Voting Securities" and "Security Ownership of
   Directors and Officers," appearing in the definitive Proxy Statement for the
   Special Meeting in Lieu of the 1999 Annual Meeting of Stockholders to be held
   on April 27, 1999. Such information is incorporated herein by reference.

   ITEM 13:  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

        None





                                       13







   16


                                     PART IV

   ITEM 14:  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K

   (a)   (1)    Financial Statements
                The following consolidated financial statements of Cognex
                Corporation and the report of independent accountants relating
                thereto are included in the Company's Annual Report to
                Stockholders for the year ended December 31, 1998, which is
                Exhibit 13 hereto, and is incorporated herein by reference:
                
                   Report of Independent Accountants

                   Consolidated Statements of Income for the years ended
                      December 31, 1998, 1997, and 1996
                
                   Consolidated Balance Sheets at December 31, 1998 and 1997
                
                   Consolidated Statements of Stockholders' Equity for the years
                      ended December 31, 1998, 1997, and 1996
               
                   Consolidated Statements of Cash Flows for the years ended 
                      December 31, 1998, 1997, and 1996

                Notes to Consolidated Financial Statements

         (2)    Financial Statement Schedule
                Included at the end of this report are the following:
                   Report of Independent Accountants on the Financial Statement
                   Schedule
                   Schedule II - Valuation and Qualifying Accounts
                Other schedules are omitted because of the absence of conditions
                under which they are required or because the required
                information is given in the consolidated financial statements or
                notes thereto.
         (3)    Exhibits
                The Exhibits filed as part of this Annual Report on Form 10-K
                are listed in the Exhibit Index appearing on page 18,
                immediately preceding such Exhibits.

   (b)          Reports on Form 8-K
                There were no Reports on Form 8-K filed during the fourth
                quarter of the year ended December 31, 1998.







                                       14





   17


                                   SIGNATURES

        Pursuant to the requirements of Section 13 or 15(d) of the Securities
   Exchange Act of 1934, the registrant has duly caused this report to be signed
   on its behalf by the undersigned, thereunto duly authorized.

                              COGNEX CORPORATION

                              /s/ Robert J. Shillman
                              ----------------------
                              Robert J. Shillman
                              (President, Chief Executive Officer,
                              and Chairman of the Board of Directors)
                              March 26, 1999

        Pursuant to the requirements of the Securities Exchange Act of 1934,
   this report has been signed below by the following persons on behalf of the
   registrant and in the capacities and on the dates indicated.



   Signature                              Title                                              Date
   ---------                              -----                                              ----
                                                                                        
   /s/ Robert J. Shillman                 President, Chief Executive Officer,                March 26, 1999
   -------------------------------        and Chairman of the Board of Directors                     
   Robert J. Shillman                     (principal executive and financial and
                                          accounting officer) 
                                          

   /s/ Jerald Fishman                     Director                                           March 26, 1999
   -------------------------------
   Jerald Fishman

   /s/ William Krivsky                    Director                                           March 26, 1999
   -------------------------------
   William Krivsky

   /s/ Anthony Sun                        Director                                           March 26, 1999
   -------------------------------
   Anthony Sun

   /s/ Rueben Wasserman                   Director                                           March 26, 1999
   -------------------------------
   Rueben Wasserman






                                       15







   18


                        REPORT OF INDEPENDENT ACCOUNTANTS
                       ON THE FINANCIAL STATEMENT SCHEDULE


To the Board of Directors of Cognex Corporation:

        Our audits of the consolidated financial statements referred to in our
   report dated January 26, 1999 in the 1998 Annual Report to Stockholders of
   Cognex Corporation (which report and consolidated financial statements are
   incorporated by reference in this Annual Report on Form 10-K) also included
   an audit of the financial statement schedule listed in Item 14 (a)(2) of this
   Form 10-K. In our opinion, this financial statement schedule presents fairly,
   in all material respects, the information set forth therein when read in
   conjunction with the related consolidated financial statements.

                                                  /s/ PricewaterhouseCoopers LLP
Boston, Massachusetts
January 26, 1999






                                       16





   19


                                                                     SCHEDULE II

                               COGNEX CORPORATION
                        VALUATION AND QUALIFYING ACCOUNTS
                             (Dollars in thousands)



                                                                   ADDITIONS
                                                           -------------------------
                                                                                            
                                               BALANCE AT   CHARGED TO   CHARGED TO                       BALANCE
   DESCRIPTION                                 BEGINNING    COSTS AND     OTHER                           AT END
                                               OF PERIOD    EXPENSES     ACCOUNTS       DEDUCTIONS       OF PERIOD
- ---------------------------------------------- ---------    --------     --------    -----------------   ---------

   Allowance for Doubtful Accounts
- ----------------------------------------------
                                                                                                   
     1998                                        $1,940      $ 1,245           -     $   (602)(a)        $   2,583
                                              
     1997                                           968        1,268           -         (296)(a)            1,940
                                              
     1996                                           709          542           -         (283)(a)              968
                                              

                                              
   Reserve for Inventory Obsolescence
- ----------------------------------------------
     1998                                        $1,873      $   992           -     $     (5)(b)        $   2,860
                                              
     1997                                         2,273          278                     (678)(b)            1,873
                                              
     1996                                           541        4,361           -       (2,629)(b)            2,273
                                              
   (a) Specific write-offs
   (b) Specific dispositions


                                       17

   20


                                              EXHIBIT INDEX

        EXHIBIT
         NUMBER
        =======
            2   Agreement and Plan of Merger dated as of February 29, 1996 among
                Cognex Corporation, Cognex Software Development, Inc., Isys
                Controls, Inc., and Richard Rombach (incorporated by reference
                to Exhibit 2 to the Report on Form 8-K filed on March 15, 1996)
             
           3A   Articles of Organization of the Company effective January 8,
                1981, as amended June 8, 1982, August 19, 1983, May 15, 1984,
                April 17, 1985, November 4, 1986, and January 21, 1987
                (incorporated by reference to Exhibit 3A to the Registration
                Statement Form S-1 [Registration No. 33-29020])
         
           3B   Restated Articles of Organization of the Company effective June
                27, 1989, as amended April 30, 1991, April 21, 1992, April 25,
                1995, and April 23, 1996 (filed as Exhibit 3B to the Company's
                Annual Report of Form 10-K for the year ended December 31, 1996)
         
           3C   By-laws of the Company as amended February 9, 1990 (filed as
                Exhibit 3C to the Company's Annual Report on Form 10-K for the
                year ended December 31, 1990)
         
            4   Specimen Certificate for Shares of Common Stock (incorporated by
                reference to Exhibit 4 to the Registration Statement Form S-1
                [Registration No. 33-29020])
         
          10A   Cognex Corporation Employee Stock Purchase Plan (incorporated by
                reference to Exhibit 4A to Amendment No. 1 to the Registration
                Statement Form S-8 [Registration No. 33-32815])
         
          10B   Cognex Corporation 1992 Director Stock Option Plan (filed as
                Exhibit 10I to the Company's Annual Report on Form 10-K for the
                year ended December 31, 1992) Cognex Corporation 1993 Director
                Stock Option Plan (filed as Exhibit 10J to the Company's Annual
         
          10C   Cognex Corporation 1993 Director Stock Option Plan (filed as 
                Exhibit 10J to the Company's Annual Report on Form 10-K for the
                year ended December 31, 1993)
                 
          10D   Cognex Corporation 1993 Employee Stock Option Plan, as amended
                May 28, 1996 (incorporated by reference to Exhibit 4A to the
                Registration Form S-8 [Registration No. 333-4621])
         
          10E   Cognex Corporation 1996 Long-Term Incentive Plan (incorporated
                by reference to Exhibit 4A to the Registration Statement Form
                S-8 [Registration No. 333-2151])
         
          10F   Amendment to the Cognex Corporation 1993 Director Stock Option
                Plan (filed as Exhibit 10G to the Company's Annual Report on
                Form 10-K for the year ended December 31, 1997)
         
          10G   Amendment to the Cognex Corporation 1993 Employee Stock Option
                Plan (filed as Exhibit 10H to the Company's Annual Report on
                Form 10-K for the year ended December 31, 1997)
         
          10H   Cognex Corporation 1998 Non-Employee Director Stock Option Plan
                (incorporated by reference to Exhibit 4.1 to the Registration
                Form S-8 [Registration No. 333-60807])
         
          10I   Cognex Corporation 1998 Stock Incentive Plan (incorporated by
                reference to Exhibit 4.2 to the Registration Form S-8
                [Registration No. 333-60807])
         
           13   Annual Report to Stockholders for the year ended December 31,
                1998 (which is not deemed to be "filed" except to the extent
                that portions thereof are expressly incorporated by reference in
                this Annual Report on Form 10-K) *
          
           21   Subsidiaries of the registrant *
         
           23   Consent of PricewaterhouseCoopers LLP *
         
           27   Financial Data Schedule for the year ended December 31, 1998
                (electronic filing only) *

               * Filed herewith

                                       18