Attached files

file filename
EXCEL - IDEA: XBRL DOCUMENT - COGNEX CORPFinancial_Report.xls
EX-31.2 - EXHIBIT 31.2 - COGNEX CORPcgnx-20141231xexhibit312.htm
EX-32.1 - EXHIBIT 32.1 - COGNEX CORPcgnx-20141231xexhibit321.htm
EX-10.H - EXHIBIT 10.H - COGNEX CORPcgnx-20141231xexhibit10h.htm
EX-21 - EXHIBIT 21 - COGNEX CORPcgnx-20141231xexhibit21.htm
EX-32.2 - EXHIBIT 32.2 - COGNEX CORPcgnx-20141231xexhibit322.htm
EX-10.R - EXHIBIT 10.R - COGNEX CORPcgnx-20141231xexhibit10r.htm
EX-10.S - EXHIBIT 10.S - COGNEX CORPcgnx-20141231xexhibit10s.htm
EX-10.T - EXHIBIT 10.T - COGNEX CORPcgnx-20141231xexhibit10t.htm
10-K - 10-K - COGNEX CORPcgnx-20141231x10xk.htm
EX-31.1 - EXHIBIT 31.1 - COGNEX CORPcgnx-20141231xexhibit311.htm

EXHIBIT 23.1





CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We have issued our reports dated February 12, 2015, with respect to the consolidated financial statements, schedule, and internal control over financial reporting included in the Annual Report of Cognex Corporation on Form 10-K for the year ended December 31, 2014. We hereby consent to the incorporation by reference of said reports in the Registration Statements of Cognex Corporation on Forms S-8 (File Nos. 333-02151, effective April 21, 1996; 333-60807, effective August 6, 1998; 333-96961, effective July 23, 2002; 333-100709, effective October 24, 2002; 333-126787, effective July 21, 2005; and 333-150315, effective April 18, 2008).

/s/ GRANT THORNTON LLP
Boston, Massachusetts
February 12, 2015