<SEC-DOCUMENT>0001157523-20-001563-index.html : 20201203
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<ACCEPTANCE-DATETIME>20201203160747
ACCESSION NUMBER:		0001157523-20-001563
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		13
CONFORMED PERIOD OF REPORT:	20201203
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20201203
DATE AS OF CHANGE:		20201203

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COGNEX CORP
		CENTRAL INDEX KEY:			0000851205
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823]
		IRS NUMBER:				042713778
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34218
		FILM NUMBER:		201366994

	BUSINESS ADDRESS:	
		STREET 1:		ONE VISION DR
		CITY:			NATICK
		STATE:			MA
		ZIP:			01760
		BUSINESS PHONE:		5086503000

	MAIL ADDRESS:	
		STREET 1:		ONE VISION DRIVE
		CITY:			NATICK
		STATE:			MA
		ZIP:			01760
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Document 1 - file: a52342757.htm

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<DESCRIPTION>EXHIBIT 99.1
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Document 2 - file: a52342757ex99_1.htm

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<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>cgnx-20201203.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
Document 3 - file: cgnx-20201203.xsd

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<TYPE>EX-101.LAB
<SEQUENCE>4
<FILENAME>cgnx-20201203_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
Document 4 - file: cgnx-20201203_lab.xml

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<TYPE>EX-101.PRE
<SEQUENCE>5
<FILENAME>cgnx-20201203_pre.xml
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<TEXT>
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<FILENAME>R1.htm
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<TYPE>EXCEL
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<TEXT>
Document 8 - file: Financial_Report.xlsx

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<SEQUENCE>10
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<TEXT>
Document 10 - file: report.css

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<SEQUENCE>11
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Document 11 - RAW XML: FilingSummary.xml

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<SEQUENCE>13
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<TYPE>ZIP
<SEQUENCE>14
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