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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001005477-06-002013.txt : 20060404
<SEC-HEADER>0001005477-06-002013.hdr.sgml : 20060404
<ACCEPTANCE-DATETIME>20060404161737
ACCESSION NUMBER:		0001005477-06-002013
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060331
FILED AS OF DATE:		20060404
DATE AS OF CHANGE:		20060404

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IRVINE SENSORS CORP/DE/
		CENTRAL INDEX KEY:			0000357108
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				330280334
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1002

	BUSINESS ADDRESS:	
		STREET 1:		3001 REDHILL AVE
		CITY:			COSTA MESA
		STATE:			CA
		ZIP:			92626
		BUSINESS PHONE:		7145498211

	MAIL ADDRESS:	
		STREET 1:		3001 REDHILL AVE
		STREET 2:		BLDG 3 STE 104
		CITY:			COSTA MESA
		STATE:			CA
		ZIP:			92626

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HALE MARTIN M JR
		CENTRAL INDEX KEY:			0001272935

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08402
		FILM NUMBER:		06738294

	BUSINESS ADDRESS:	
		STREET 1:		500 NYALA FARM ROAD
		CITY:			WESTPORT
		STATE:			CT
		ZIP:			06880
		BUSINESS PHONE:		2034292200

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PEQUOT CAPITAL MANAGEMENT INC
		CENTRAL INDEX KEY:			0001071955
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08402
		FILM NUMBER:		06738295

	BUSINESS ADDRESS:	
		STREET 1:		500 NYALA FARM ROAD
		CITY:			WESTPORT
		STATE:			CT
		ZIP:			06880
		BUSINESS PHONE:		2034292200

	MAIL ADDRESS:	
		STREET 1:		500 NYALA FARM ROAD
		CITY:			WESTPORT
		STATE:			CT
		ZIP:			06880

	FORMER NAME:	
		FORMER CONFORMED NAME:	PEQUOT CAPITAL MANAGEMENT INC/CT/
		DATE OF NAME CHANGE:	19981118
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar123.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-03-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000357108</issuerCik>
        <issuerName>IRVINE SENSORS CORP/DE/</issuerName>
        <issuerTradingSymbol>IRSN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001071955</rptOwnerCik>
            <rptOwnerName>PEQUOT CAPITAL MANAGEMENT INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>500 NYALA FARM ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WESTPORT</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06880</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Footnote 1</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001272935</rptOwnerCik>
            <rptOwnerName>HALE MARTIN M JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>500 NYALA FARM ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WESTPORT</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06880</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $.01 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2006-03-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>24831</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.6238</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>24831</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Investment Advisor</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $.01 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2006-03-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>8520</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.6238</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>33351</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Investment Advisor</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Pequot Capital Management, Inc. (&quot;Pequot&quot;) is an investment advisor registered under Section 203 of the Investment Advisers Act of 1940 and has voting and investment power with respect to securities in its clients' accounts. Pequot disclaims any obligation to file this report, and this report shall not be deemed an admission that Pequot is subject to Section 16 with respect to the Issuer of such securities.  Martin M. Hale, Jr. is an employee of Pequot and serves on the Board of Directors of the Issuer and disclaims beneficial ownership of these securities except to the extent of his pecuniary interest.</footnote>
        <footnote id="F2">Pequot disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that Pequot is, for the purposes of Section 16 of the Exchange Act or otherwise, the beneficial owner of such securities.</footnote>
        <footnote id="F3">The record holder of each Series 1 Subordinated Convertible Note (each, a &quot;Senior 1 Note&quot;) elected to receive the accrued interest payable on March 31, 2006 on such Senior 1 Note in shares of the Issuer's Common Stock (the &quot;Common Stock&quot;) at a price per share equal to the Market Price, in lieu of cash.  Aggregate accrued interest payable on the Series 1 Notes on March 31, 2006 was $65,148.07.  The &quot;Market Price&quot; is equal to 93% of arithmetic average of the volume-weighted average price for each of the 20 consecutive trading days prior to March 31, 2006.</footnote>
        <footnote id="F4">The record holder of each Series 2 Subordinated Convertible Note (each, a &quot;Senior 2 Note&quot;) elected to receive the accrued interest payable on March 31, 2006 on such Senior 2 Note in shares of Common Stock at a price per share equal to the Market Price, in lieu of cash.  Aggregate accrued interest payable on the Series 2 Notes on March 31, 2006 was $22,351.94.  Additionally, each holder elected to defer receipt of such shares of Common Stock until the Maturity Date (as defined in the Notes) or such earlier date as specified by such holder in writing.  In any event, such shares cannot be issued to the holders until the Issuer obtains the approval of the stockholders of, among other things, the issuance of the shares of Common Stock issuable upon conversion of the Series 2 Notes.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Aryeh Davis, GC &amp; COO, Pequot Capital Management, Inc.</signatureName>
        <signatureDate>2006-04-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Martin M. Hale, Director (1)</signatureName>
        <signatureDate>2006-04-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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