<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-12-03</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000845434</issuerCik><issuerName>INFOCUS CORP</issuerName>        <issuerTradingSymbol>INFS</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001224539</rptOwnerCik><rptOwnerName>CHAN SIU MAN THOMSON</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>27700B SW PARKWAY AVENUE</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>WILSONVILLE</rptOwnerCity><rptOwnerState>OR</rptOwnerState><rptOwnerZipCode>97070</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>VP, GM, Asia Pacific</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-12-03</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>3000.0000</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>9000.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><footnotes></footnotes><remarks></remarks><ownerSignature><signatureName>/s/  Michael D. Yonker, Attorney-in-Fact for Siu Man (Thomson) Chan</signatureName><signatureDate>2003-12-04</signatureDate></ownerSignature></ownershipDocument>

