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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, 1999 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 27, 2000: $1,911,742,000
                                              --------------

        $.002 par value common stock outstanding as of February 27, 2000:
                               42,542,247 shares
                               -----------------

Documents incorporated by reference:
Specifically identified information in the Annual Report to Stockholders for the
year ended December 31, 1999, 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 2000 Annual Meeting of Stockholders to be held on
May 8, 2000, 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, 1999

                                      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 14 of the Annual Report to Stockholders for the year ended
December 31, 1999, 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, manufactures, 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 that 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
revenue. However, the Company believes that end users have the potential in the
long term to generate more revenue than OEMs. Consequently, the Company has
invested in developing and acquiring products that 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 1999, approximately 69% 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 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, manufactures, 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 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
PatMax(R), 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 PatInspect(TM), 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. In early 2000, the Company introduced a new tool called PatFind(TM) for
the In-Sight(TM) 2000 product. PatFind is a part location tool based on the
Company's industry-leading Search and PatMax software technologies.

     MVS-8000 product family

     The MVS-8000 product family of programmable machine vision systems combines
Cognex's unique algorithms with Intel's new MMX instruction set. Prior to the
MVS-8000 product family, all of the Company's software ran on its own
proprietary hardware that was based on the Motorola 68k line of microprocessors.
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.
The MVS-8200 Series of embedded CPU machine 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 user 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 machine vision systems into manufacturing
equipment for the semiconductor and electronics industries. These machine 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

     Checkpoint(R) is a family of PC-based machine vision systems for complex
precision guidance, gauging, and defect inspection applications. Although
Checkpoint features a graphical user interface, it does require some knowledge
of programming and machine vision to configure a vision application. Deployment
of Checkpoint on the factory floor requires the services of trained system
integrators to mechanically and electrically integrate Checkpoint into
manufacturing lines. Checkpoint is ideal for vision applications requiring
multiple cameras or color image analysis.

     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.

     In-Sight 2000

     In early 2000, the Company entered the fast-growing market for low-cost
vision sensors with its new In-Sight 2000 product. In-Sight is an innovative,
low-cost machine vision sensor that provides Cognex's industry-leading vision
technology in an affordable, stand-alone package that does not require
programming skills or a PC to deploy. Because In-Sight is so compact and
affordable, it can be deployed in multiple points throughout the manufacturing
process where value is being added. In-Sight includes a comprehensive library of
Cognex vision software tools, including the new PatFind part location tool, and
an easy-to-use vision spreadsheet environment enabling anyone with basic
spreadsheet skills to configure a vision application. Users navigate through the
spreadsheet with a hand-held control pad.

     In-Sight is sold primarily to end users located in North America, Japan,
Europe, and Southeast Asia in similar industries to the Checkpoint product
family.



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     Other General-Purpose Systems

     The Company continues to offer programmable machine vision systems 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 runs on
the PC.

     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 machine 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(TM)/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 II (BGA) 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(TM) 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.

     SmartView(TM) Modular Camera Network (MCN) detects, measures, and
classifies defects on products made in continuous processes. SmartView MCN
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(R) Intelligent Camera System, and has enabled the Company to expand
into more complex applications, including the inspection of high-end plastics
and non-wovens.

     SmartView Imaging Camera Network (icn), introduced in early 2000,
detects, measures, and classifies defects on products made in continuous
processes. SmartView icn has the same basic features as SmartView MCN systems
and provides grayscale imaging capability to visualize the defects and visual
quality of the inspected web or surface. SmartView icn also offers more power
and expandability than SmartView MCN. SmartView icn will enable the Company to
expand into more complex vision applications previously only achievable with iS
systems.



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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, 1999, the Company employed 163 professionals in R, D & E,
most of whom are software developers. The Company's R, D & E expenses totaled
$27,669,000, $24,662,000, and $22,481,000, or 18%, 20%, and 14% of revenue, in
1999, 1998, and 1997, respectively.

MANUFACTURING

     The majority of the Company's machine 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, SmartView MCN
systems, and SmartView icn systems are manufactured at its Alameda, California
facility. The manufacturing processes at the Alameda facility consist of
systems design, configuration management and control, component procurement,
subassembly, integration and final test, quality control, and shipment. System
installation and commissioning are performed by either the Company, its
customers, or system integrators. Certain products are manufactured by
third-party contractors using documentation created and controlled by the
Company. Certain components 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, 1999, the Company's direct sales and service force
consisted of 155 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 69%, 63%, and
62% of revenue in 1999, 1998, and 1997, respectively. One customer based in
Japan, Fuji America Corporation, accounted for approximately 13%, 14%, and 18%
of revenue in 1999, 1998, and 1997, respectively. Information about operating
segments and geographic areas, as well as foreign currency and related risk may
be found in the Notes to the Consolidated Financial Statements, appearing on
page 31 and


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pages 20 through 22 of the Annual Report to Stockholders for the
year ended December 31, 1999, 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 group provides, for a fee, services that
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 a variety of product courses that 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, trademark, copyright, and trade
secret protection to safeguard its competitive position. The Company has
obtained 68 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, trademark, 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), acuReader(TM),
Checkpoint(R), DisplayInspect(TM), Fine-Line(R), In-Sight(TM), PatMax(R),
PatInspect(TM), PatFind(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, as well as
imposes strict limitations on the customer's use of the Company's trade secret,
proprietary, and other confidential business information to which the customer
may have access. 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 incorporates such products. As a result of this action
and the continuing assertions against other current and potential Cognex
customers, the Company decided


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to initiate action against the Partnership in order to preserve its right to
sell machine vision products 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. The Company refiled the lawsuit in Reno, Nevada
on September 27, 1999, after the Judge in Massachusetts ruled that Massachusetts
is not the proper jurisdiction. While the Company believes that Massachusetts is
an appropriate jurisdiction, it decided not to appeal the Judge's decision but
rather to refile in Nevada where several other Lemelson lawsuits are in progress
and where no jurisdiction controversy exists. 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 low-cost smart camera and image sensor solutions being introduced by various
competitors on the basis of superior performance and price, rather than on price
alone, through its In-Sight 2000 product.

BACKLOG

     At December 31, 1999, the Company's backlog totaled $36,788,000, compared
to $17,216,000 at December 31, 1998. 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, 1999, the Company employed 608 persons, including 272 in
sales, marketing, and support activities; 163 in research, development, and
engineering; 60 in manufacturing and quality assurance; and 113 in information
technology, finance, and administration. Of the Company's 608 employees, 183 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 that serves as it's 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 2001, 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, 1999 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, 1999:

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

Robert J. Shillman   53    President, Chief Executive Officer, and Chairman of
                           the Board of Directors
Patrick Alias        54    Executive Vice President, Worldwide Sales and
                           Marketing
Glenn Wienkoop       52    Executive Vice President and 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   43    Vice President and General Manager - Portland Operations
Richard Morin     50    Vice President of Finance, Chief Financial Officer,
                        and Treasurer
William Silver    46    Senior 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. Morin joined the Company in 1999 after ten years as Chief Financial Officer
for C&K Components, Inc., an international manufacturer of electronic components
and security systems. Mr. Morin also served as Corporate Controller and Vice
President of Finance for the Jamesbury Corporation. Mr. Morin is a Certified
Public Accountant.

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 34, and the
section captioned "Company Information," appearing on page 35 of the Annual
Report to Stockholders for the year ended December 31, 1999, 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 15 of the
Annual Report to Stockholders for the year ended December 31, 1999, 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 10 through 14 of the Annual Report to
Stockholders for the year ended December 31, 1999, 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, 1999 mature within six months. Indicators as of February 18, 2000, show that
the dollar is expected to strengthen


                                       11
   14

against the yen by June 30, 2000, to approximately 116 yen/USD. The hypothetical
gain in cash flows of these yen forward contracts is estimated to be $2,345,000
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, 1999 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, 1999, 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, 1999 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 value of the principal plus accrued interest
and dividends of certain interest-rate-sensitive securities at December 31,
1999.



                               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               $ 202,881           $ 201,862       $ 200,608          $ 199,471               $ 198,335
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 15 through 34 of the Annual Report to
Stockholders for the year ended December 31, 1999, 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 1999 or 1998.


                                       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 2000 Annual Meeting of
Stockholders to be held on May 8, 2000. 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 2000 Annual Meeting of Stockholders to be held on
May 8, 2000. 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 2000 Annual Meeting of Stockholders to be held on
May 8, 2000. 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, 1999, 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, 1999, 1998, and 1997

               Consolidated Balance Sheets at December 31, 1999 and 1998

               Consolidated Statements of Stockholders' Equity for the years
               ended December 31, 1999, 1998, and 1997

               Consolidated Statements of Cash Flows for the years ended
               December 31, 1999, 1998, and 1997

               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, 1999.


                                       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 24, 2000

     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 24, 2000
- --------------------------     and Chairman of the Board of Directors
Robert J. Shillman             (principal executive officer)

/s/ Richard Morin              Vice President of Finance, Chief Financial       March 24, 2000
- --------------------------     Officer, and Treasurer
Richard Morin                  (principal financial and accounting officer)

/s/ Jerald Fishman             Director                                         March 24, 2000
- --------------------------
Jerald Fishman

/s/ William Krivsky            Director                                         March 24, 2000
- --------------------------
William Krivsky

/s/ Anthony Sun                Director                                         March 24, 2000
- --------------------------
Anthony Sun

/s/ Reuben Wasserman           Director                                         March 24, 2000
- --------------------------
Reuben 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 27, 2000 in the 1999 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.

Boston, Massachusetts                             /s/ PricewaterhouseCoopers LLP
January 27, 2000


                                       16
   19

                                                                     SCHEDULE II

                               COGNEX CORPORATION
                       VALUATION AND QUALIFYING ACCOUNTS
                             (Dollars in thousands)



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

Allowance for Doubtful Accounts
- -------------------------------
  1999                                      $2,583        $ 1,050             -          $  (797)  (a)      $2,836
  1998                                       1,940          1,245             -             (602)  (a)       2,583
  1997                                         968          1,268             -             (296)  (a)       1,940

Reserve for Inventory Obsolescence
- ----------------------------------
  1999                                      $2,860        $ 1,545             -          $  (450)  (b)      $3,955
  1998                                       1,873            992             -               (5)  (b)       2,860
  1997                                       2,273            278             -             (678)  (b)       1,873


(a) Specific write-offs
(b) Specific dispositions


                                       17
   20

                                  EXHIBIT INDEX

EXHIBIT NUMBER
- --------------

      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)

     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, 1999 (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, 1999
                    (electronic filing only) *


                    * Filed herewith


                                       18