Exhibit 99.1

          Cognex Corporation Announces Fourth Quarter Results


    NATICK, Mass.--(BUSINESS WIRE)--Jan. 23, 2007--Cognex Corporation
(NASDAQ: CGNX) today announced its financial results for the fourth
quarter and year ended December 31, 2006. Revenue, net income and
earnings per share are compared to the fourth quarter of 2005, to the
third quarter of 2006, and to the year ended December 31, 2005 (which
includes 8 months of results for DVT Corporation acquired on May 9,
2005) in the table below.

                                                              Earnings
                                                                per
                                                               Diluted
                                      Revenue     Net Income    Share
- ---------------------------------- ============= ============ ========
      Quarterly Comparisons
================================== ------------- ------------ --------
Current quarter: Q4-06             $58,796,000   $9,562,000    $0.21
- ---------------------------------- ------------- ------------ --------
Prior year's quarter: Q4-05        $60,818,000   $11,750,000   $0.24
- ---------------------------------- ------------- ------------ --------
Change from Q4-05 to Q4-06             (3%)         (19%)      (13%)
- ---------------------------------- ------------- ------------ --------
Prior quarter: Q3-06               $58,005,000   $10,116,000   $0.22
- ---------------------------------- ------------- ------------ --------
Change from Q3-06 to Q4-06              1%           (5%)       (5%)
- ---------------------------------- ------------- ------------ --------

- ---------------------------------- ------------- ------------ --------
     Year to Date Comparisons
================================== ------------- ------------ --------
Year ended December 31, 2006       $238,915,000  $39,912,000   $0.86
- ---------------------------------- ------------- ------------ --------
Year ended December 31, 2005       $216,875,000  $35,702,000   $0.74
- ---------------------------------- ------------- ------------ --------
Change from 2005 to 2006                10%          12%        15%
- ---------------------------------- ------------- ------------ --------

    Beginning in 2006, Cognex has included stock option expense in its
results (Exhibit 2 shows the effect of stock option expensing on
certain line items in the P&L as reported under GAAP). For comparative
purposes, the company's results are shown in the table below excluding
stock option expense:

                                                              Earnings
                                                                per
                                                               Diluted
                                      Revenue     Net Income    Share
- ---------------------------------- ============= ============ ========
      Quarterly Comparisons
================================== ------------- ------------ --------
Current quarter: Q4-06 (Non-GAAP)  $58,796,000   $11,828,000   $0.26
- ---------------------------------- ------------- ------------ --------
Prior year's quarter: Q4-05 (GAAP) $60,818,000   $11,750,000   $0.24
- ---------------------------------- ------------- ------------ --------
Change from Q4-05 to Q4-06             (3%)           1%         8%
- ---------------------------------- ------------- ------------ --------
Prior quarter: Q3-06 (Non-GAAP)    $58,005,000   $12,369,000   $0.27
- ---------------------------------- ------------- ------------ --------
Change from Q3-06 to Q4-06              1%           (4%)       (4%)
- ---------------------------------- ------------- ------------ --------

- ---------------------------------- ------------- ------------ --------
     Year to Date Comparisons
================================== ------------- ------------ --------
Year ended December 31, 2006 (Non-
 GAAP)                             $238,915,000  $48,623,000   $1.05
- ---------------------------------- ------------- ------------ --------
Year ended December 31, 2005
 (GAAP)                            $216,875,000  $35,702,000   $0.74
- ---------------------------------- ------------- ------------ --------
Change from 2005 to 2006                10%          36%        41%
- ---------------------------------- ------------- ------------ --------

    "Although I am disappointed by the level of business in the fourth
quarter, there was some good news to report," said Dr. Robert J.
Shillman, Cognex's Chairman and Chief Executive Officer. "First,
revenue and earnings per share for the quarter were within our
guidance, which was reassuring. And second, net income, excluding
stock option expense, was equal to 20% of revenue (or 16% including
stock option expense), which is a long-standing target for Cognex."

    Dr. Shillman continued, "For Q1 of 2007, we believe that revenue
from the Factory Automation market will increase year-on-year but,
unfortunately, that increase will not be enough to offset the expected
decline in the semiconductor and electronic industries, which are
among the largest users of Cognex products. Going forward, we intend
to kick-off a number of new sales and marketing initiatives in early
2007 that should help grow revenue outside of that cyclical market as
the year progresses."

                        Details of the Quarter

    Statement of Operations Highlights - Fourth Quarter of 2006

    --  Revenue for the fourth quarter of 2006 decreased 3% from the
        fourth quarter of 2005 due to lower sales in all three of the
        company's primary markets; Factory Automation, Surface
        Inspection, and Semiconductor and Electronics Capital
        Equipment. On a sequential basis, revenue increased 1% due to
        higher sales in the Surface Inspection market and, to a lesser
        extent, the Factory Automation market.

    --  Gross margin was 73% in the fourth quarter of 2006, 72% in the
        fourth quarter of 2005 and 73% in the prior quarter. Excluding
        stock option expense, gross margin increased to 73% in the
        fourth quarter of 2006 from 72% in the comparable quarter of
        2005, and was down from 74% in the prior quarter. The increase
        year-on-year in gross margin excluding stock option expense is
        due to lower costs relating to higher production throughput.
        Gross margin excluding stock option expense decreased on a
        sequential basis due to product mix: a greater percentage of
        revenue came from the sale of surface inspection systems in
        the fourth quarter of 2006 than from modular vision systems.

    --  Research, Development & Engineering (R, D & E) spending in the
        fourth quarter of 2006 increased 17% from the fourth quarter
        of 2005 and 1% from the prior quarter (or 3% and 1%,
        respectively, excluding stock option expense). R, D & E
        spending excluding stock option expense increased year-on-year
        and sequentially due to higher employee-related costs,
        primarily new employees, and higher outside services related
        to new product initiatives.

    --  Selling, General & Administrative (S, G & A) spending in the
        fourth quarter of 2006 increased 13% from the fourth quarter
        of 2005 and 6% on a sequential basis (or 3% and 7%,
        respectively, excluding stock option expense). The increase in
        S, G & A spending excluding stock option expense year-on-year
        was primarily due to the fact that 2005 included the reversal
        of a $1,000,000 reserve related to the Lemelson case. On a
        sequential basis, S, G & A spending excluding stock option
        expense increased due to higher employee-related costs, travel
        and entertainment, and marketing programs.

    --  The company reported a foreign currency gain of $374,000 in
        the fourth quarter of 2006, a loss of $286,000 in the fourth
        quarter of 2005 and a loss of $282,000 in the prior quarter.
        The company recognizes foreign currency gains and losses on
        the revaluation and settlement of accounts receivable and
        payable balances that are reported in one currency and
        collected or paid in another.

    --  Investment and other income was $1,581,000 in the fourth
        quarter of 2006, $1,531,000 in the fourth quarter of 2005 and
        $1,518,000 in the prior quarter. The increase in investment
        and other income year-on-year is due to higher yields offset
        by a lower average invested balance as Cognex used cash to
        repurchase its common stock. Investment and other income
        increased on a sequential basis despite a consistent average
        invested balance and comparable investment yields due to
        higher other income.

    --  The effective tax rate was 19% in the fourth quarter of 2006,
        26% in the fourth quarter of 2005 and 18% in the prior
        quarter. Excluding the one-time discrete items described in
        the following two paragraphs, the tax rates would have been
        25% in the fourth quarter of 2006, and 23% in the prior
        quarter. The decrease in the effective tax rate year-on-year
        is due to more of the company's profits being earned in lower
        tax jurisdictions than in the fourth quarter of 2005. The
        increase on a sequential basis is due to the fact that the
        third quarter of 2006 includes a year-to-date adjustment
        reducing the effective tax rate for more of the company's
        profits being earned in lower tax jurisdictions than had been
        anticipated.

    In the fourth quarter of 2006, Cognex recorded favorable tax
adjustments of nearly $700,000 due to adjusting the estimate of the
Japanese tax audit settlement upon filing of the actual tax return in
Japan, and the favorable impact in the U.S. of the retroactive
reinstatement of the Research & Development tax credit.

    In the third quarter of 2006, Cognex recorded a net tax benefit of
approximately $570,000 which included the unfavorable settlement of
the multi-year Japanese tax audit, the benefit from the statute of
limitations expiring for a particular tax year and the favorable
adjustment of estimates made as a result of filing the actual tax
returns for 2005.

    Balance Sheet Highlights - December 31, 2006

    --  Cognex's financial position at December 31, 2006 was very
        strong, with over $266,000,000, or $6.00 per share, in cash
        and investments and no debt. In 2006, Cognex generated
        positive cash flow from operations of approximately
        $50,000,000, paid out over $15,000,000 in dividends to
        shareholders, and spent over $86,000,000 to repurchase nearly
        3,300,000 shares of its common stock on the open market.

    --  Days sales outstanding (DSO) for the fourth quarter of 2006
        was 60 days, and remains within the company's targeted range.

    --  Inventories at December 31, 2006, increased by approximately
        $2,700,000, or 10%, from the end of the third quarter of 2006,
        and inventory turns in the fourth quarter were equivalent to
        2.1 times per year.

    Business Trends and Financial Outlook

    Financial Outlook

    --  For the first quarter of 2007, Cognex expects revenue to be
        between $55 million and $58 million. Gross margin is expected
        to be in the low-70% range. Operating expenses (R, D & E and
        S, G & A) are expected to be essentially flat on a sequential
        basis. The effective tax rate is expected to be 26%. As a
        result of the above, earnings for the first quarter of 2007
        are expected to be between $0.12 and $0.16 per diluted share
        (or between $0.17 and $0.21 per diluted share excluding an
        estimated $0.05 per diluted share for estimated stock option
        expense of $400,000 in Cost of Goods Sold and $3,100,000 in
        Operating Expenses).

    Non-GAAP Financial Measures

    This press release and its attachments contain non-GAAP financial
measures. In particular, Cognex incurs expense related to stock
options included in its GAAP presentation of cost of revenue,
research, development, and engineering expenses (R,D&E), and selling,
general and administrative expenses (S,G&A). Cognex excludes these
expenses for the purpose of calculating non-GAAP adjusted gross
margin, non-GAAP adjusted operating income, non-GAAP adjusted net
income and non-GAAP adjusted earnings per share when it evaluates its
continuing operational performance and in connection with its
budgeting process and the allocation of resources, because these
expenses have no current effect on cash or the future uses of cash and
they fluctuate as a result of changes in Cognex's stock price. Cognex
also excludes certain items affecting the tax provision because they
are one-time discrete events. Cognex believes that these non-GAAP
financial measures are useful to investors because they allow
investors to more accurately assess and compare Cognex's results over
multiple periods and to evaluate the effectiveness of the methodology
used by management to review the operating results of the company.
However, these non-GAAP financial measures are not meant to be
considered in isolation, nor as a substitute for financial information
provided in accordance with GAAP. Exhibit 2 shows a reconciliation of
these financial measures from GAAP to non-GAAP.

    Analyst Conference Call and Simultaneous Webcast

    Cognex will host a conference call to discuss its results for the
fourth quarter of 2006, as well as its financial outlook, today at
5:00 p.m. eastern time. The telephone number for the live call is
800-770-5589 (or 973-935-2039 if outside the United States). A replay
will begin tonight at approximately 7:00 p.m. eastern time and will
run continuously for 72 hours. The telephone number for the replay is
877-519-4471 (or 973-341-3080 if outside the United States) and the
access code is 8254041.

    Internet users can listen to a real-time audio broadcast of the
conference call, as well as an archive replay of the call, on Cognex's
Web site at http://www.cognex.com/investor/default.asp.

    About Cognex Corporation

    Cognex Corporation designs, develops, manufactures, and markets
machine vision sensors and systems, or devices that can "see." Cognex
vision sensors are used in factories around the world to automate the
manufacture of a wide range of items and to assure their quality.
Cognex is the world's leader in the machine vision industry, having
shipped more than 350,000 machine vision systems, representing over $2
billion in cumulative revenue, since the company's founding in 1981.
In addition to its corporate headquarters in Natick, Massachusetts,
Cognex also has regional offices and distributors located throughout
North America, Japan, Europe, Asia, and Latin America. Visit Cognex
on-line at http://www.cognex.com/.

    Forward-Looking Statement

    Certain statements made in this press release, which do not relate
solely to historical matters, are forward-looking statements. You can
identify these forward-looking statements by use of the words
"expects," "anticipates," "estimates," "believes," "projects,"
"intends," "plans," "will," "may," "should," "shall" and similar
words. These forward-looking statements, which include statements
regarding business trends, revenue growth and the company's financial
outlook, involve known and unknown risks and uncertainties that could
cause actual results to differ materially from those projected. Such
risks and uncertainties include: (1) global economic conditions that
impact the capital spending trends of manufacturers in a variety of
industries, including, but not limited to, the semiconductor,
electronics, automotive and steel industries; (2) the cyclicality of
the semiconductor and electronics industries; (3) the reliance upon
certain sole-source suppliers to manufacture and deliver critical
components for the company's products; (4) the inability to design and
manufacture high-quality products; (5) the technological obsolescence
of current products and the inability to develop new products; (6) the
inability to protect the company's proprietary technology and
intellectual property; (7) the challenges in integrating acquisitions
and achieving anticipated benefits; and (8) the other risks detailed
in the company's reports filed with the SEC, including the company's
Form 10-K for the fiscal year ended December 31, 2005. You should not
place undue reliance upon any such forward-looking statements, which
speak only as of the date made. The company disclaims any obligation
to update forward-looking statements after the date of such
statements.


                          COGNEX CORPORATION
                       Statements of Operations
                             (Unaudited)
                In thousands, except per share amounts




                            Three Months Ended     Twelve Months Ended
                        December October  December December  December
                           31,      1,       31,      31,       31,
                         2006     2006     2005      2006      2005
                        ----------------------------------------------

Revenue                 $58,796  $58,005  $60,818  $238,915  $216,875

Cost of revenue (1)      16,000   15,447   17,289    64,750    62,899
                        -------- -------- -------- --------- ---------

Gross margin             42,796   42,558   43,529   174,165   153,976
     Percentage of
      revenue                73%      73%      72%       73%       71%

Research, development,
 and engineering
 expenses (1)             8,111    7,997    6,916    32,607    27,640
     Percentage of
      revenue                14%      14%      11%       14%       13%

Selling, general, and
 administrative expenses
 (1)                     24,816   23,414   21,979    97,286    82,332
     Percentage of
      revenue                42%      40%      36%       41%       38%
                        -------- -------- -------- --------- ---------

Operating income          9,869   11,147   14,634    44,272    44,004
     Percentage of
      revenue                17%      19%      24%       19%       20%

Foreign currency gain
 (loss)                     374     (282)    (286)     (333)     (888)

Investment and other
 income                   1,581    1,518    1,531     6,437     5,130
                        -------- -------- -------- --------- ---------

Income before taxes      11,824   12,383   15,879    50,376    48,246

Income tax provision      2,262    2,267    4,129    10,464    12,544
                        -------- -------- -------- --------- ---------

Net income               $9,562  $10,116  $11,750   $39,912   $35,702
     Percentage of
      revenue                16%      17%      19%       17%       16%
                        ======== ======== ======== ========= =========

Net income per diluted common
 and common
     equivalent share
      (2)                 $0.21    $0.22    $0.24     $0.86     $0.74
                        ======== ======== ======== ========= =========

Diluted weighted-average common
 and common
     equivalent shares
      outstanding        45,346   45,682   48,320    46,648    47,935
                        ======== ======== ======== ========= =========

Cash dividends per
 common share            $0.085   $0.085   $0.080    $0.330    $0.320
                        ======== ======== ======== ========= =========

        Amounts include stock
         option expense, as
     (1) follows:
         Cost of revenue   $402     $413        -     1,596         -
         Research,
          development,
          and
          engineering       956      941        -     3,627         -
         Selling,
          general, and
          administrative  2,138    2,121        -     8,209         -
                        -------- -------- -------- --------- ---------
         Total stock
          option expense $3,496   $3,475        -   $13,432         -
                        ======== ======== ======== ========= =========

     (2)Net income per
         diluted common
         and common
         equivalent
         share excluding
         stock option
         expense.         $0.26    $0.27    $0.24     $1.05     $0.74
                        ======== ======== ======== ========= =========


                          COGNEX CORPORATION
        Reconciliation of Selected Items from GAAP to Non-GAAP
                             (Unaudited)
                In thousands, except per share amounts



                                                              Twelve
                                             Three Months     Months
                                                 Ended         Ended
                                           December October  December
                                              31,      1,       31,
                                            2006     2006      2006
                                           -------- ------------------

Revenue (GAAP)                             $58,796  $58,005  $238,915
                                           ======== ======== =========

Gross margin (GAAP)                        $42,796  $42,558  $174,165
 Stock option expense                          402      413     1,596
                                           -------- -------- ---------
 Gross margin (Non-GAAP)                   $43,198  $42,971  $175,761
                                           ======== ======== =========
      Percentage of revenue                     73%      74%       74%

R, D & E expenses (GAAP)                    $8,111   $7,997   $32,607
 Stock option expense                         (956)    (941)   (3,627)
                                           -------- -------- ---------
 R, D & E expenses (Non-GAAP)               $7,155   $7,056   $28,980
                                           ======== ======== =========

S, G & A expenses (GAAP)                   $24,816  $23,414   $97,286
 Stock option expense                       (2,138)  (2,121)   (8,209)
                                           -------- -------- ---------
 S, G & A expenses (Non-GAAP)              $22,678  $21,293   $89,077
                                           ======== ======== =========

Operating income (GAAP)                     $9,869  $11,147   $44,272
 Stock option expense                        3,496    3,475    13,432
                                           -------- -------- ---------
 Operating income (Non-GAAP)               $13,365  $14,622   $57,704
                                           ======== ======== =========
      Percentage of revenue                     23%      25%       24%

Net income (GAAP)                           $9,562  $10,116   $39,912
 Stock option expense, net of tax            2,266    2,253     8,711
 Net income excluding stock option
                                           -------- -------- ---------
      expense (Non-GAAP)                   $11,828  $12,369   $48,623
                                           ======== ======== =========
      Percentage of revenue                     20%      21%       20%

Net income per diluted share (GAAP)          $0.21    $0.22     $0.86
 Stock option expense, net of tax             0.05     0.05      0.19
                                           -------- -------- ---------
 Net income per diluted share excluding
      stock option expense (Non-GAAP)        $0.26    $0.27     $1.05
                                           ======== ======== =========


                          COGNEX CORPORATION
                            Balance Sheets
                             (Unaudited)
                             In thousands




                                                   December  December
                                                      31,       31,
                                                     2006      2005
                                                   -------------------

Assets

Cash and investments                               $266,220  $312,258

Accounts receivable                                  39,249    42,051

Inventories                                          30,889    18,819

Property, plant, and equipment                       26,028    24,175

Other assets                                        165,518   167,259
                                                   --------- ---------

Total assets                                       $527,904  $564,562
                                                   ========= =========


Liabilities and Shareholders' Equity

Current liabilities                                 $54,189   $58,041

Shareholders' equity                                473,715   506,521
                                                   --------- ---------

Total liabilities and shareholders' equity         $527,904  $564,562
                                                   ========= =========


                          COGNEX CORPORATION
                   Additional Information Schedule
                             (Unaudited)
                         Dollars in thousands



                            Three Months Ended     Twelve Months Ended
                        December October  December December  December
                           31,      1,       31,      31,       31,
                         2006     2006     2005      2006      2005
                        -------------------------- -------------------

Revenue                 $58,796  $58,005  $60,818  $238,915  $216,875
                        ======== ======== ======== ========= =========

Revenue by division:
  Modular Vision
   Systems Division          86%      88%      86%       87%       84%
  Surface Inspection
   Systems Division          14%      12%      14%       13%       16%
                        -------- -------- -------- --------- ---------
  Total                     100%     100%     100%      100%      100%
                        ======== ======== ======== ========= =========

Revenue by geography:
  Americas                   36%      37%      37%       35%       37%
  Japan                      28%      28%      28%       28%       28%
  Europe                     28%      26%      28%       28%       29%
  Asia                        8%       9%       7%        9%        6%
                        -------- -------- -------- --------- ---------
  Total                     100%     100%     100%      100%      100%
                        ======== ======== ======== ========= =========

Revenue by market:
  Discrete factory
   automation                56%      56%      56%       55%       57%
  Semiconductor and
   electronics
   capital equipment         30%      32%      30%       32%       27%
  Surface inspection         14%      12%      14%       13%       16%
                        -------- -------- -------- --------- ---------
  Total                     100%     100%     100%      100%      100%
                        ======== ======== ======== ========= =========

Revenue by product:
  Vision sensors             55%      53%      48%       52%       46%
  PC-based vision
   systems                   25%      30%      31%       30%       32%
  Surface inspection
   vision systems             9%       7%      10%        8%       11%
  Service                    11%      10%      11%       10%       11%
                        -------- -------- -------- --------- ---------
  Total                     100%     100%     100%      100%      100%
                        ======== ======== ======== ========= =========

    CONTACT: Cognex Corporation
             Susan Conway, 508-650-3353
             Director of Investor Relations
             susan.conway@cognex.com