UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. _4___)

Precision Optics Corporation, Inc

(Name of Issuer)

Common Stock, $ .01 Par Value
(Title of Class of Securities)

740294202

(CUSIP Number)
		with a copy to:
Austin W. Marxe		Allen B. Levithan, Esq.
153 East 53rd Street		Lowenstein Sandler PC
New York, New York  10022		65 Livingston Avenue
			Roseland, New Jersey  07068
			(973) 597-2406
(Name, Address and Telephone Number of Person 
Authorized to Receive Notices and Communications)

March 31, 2005
(Date of Event which Requires Filing of this Statement)


If the filing person has previously filed a statement on Schedule l3G to 
report the acquisition that is the subject of this Schedule 13D, and is 
filing this schedule because of Sec. 240.13d-1(e), 240.13d-1(f) or 
240.13d-1(g), check the following box. ?

Note:  Schedules filed in paper format shall include a signed original 
and five copies of the schedule, including all exhibits.  See Sec. 
240.13d-7 for other parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting 
person's initial filing on this form with respect to the subject class of 
securities, and for any subsequent amendment containing information which 
would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be 
deemed to be ?filed? for the purpose of Section 18 of the Securities 
Exchange Act of 1934 (?Act?) or otherwise subject to the liabilities of 
that section of the Act but shall be subject to all other provisions of 
the Act (however, see the Notes).




Cusip No.   740294202      	
	1.	Names of Reporting Persons.  I.R.S. Identification Nos. of 
above persons (entities only):
	
	Austin W. Marxe and David M. Greenhouse

	
	2.	Check the Appropriate Box if a Member of a Group (See 
Instructions):
	(a)	[    ]	 	Not Applicable
	(b)	[    ]	
	
	3.	SEC Use Only
	
	4.	Source of Funds (See Instructions):  00
	
	5.	Check if Disclosure of Legal Proceedings Is Required Pursuant 
to Items 2(d) or 2(e):
				Not Applicable
	
	6.	Citizenship or Place of Organization:	    United States
	
	Number of	7.	Sole Voting Power:	*
	Shares Beneficially	8.	Shared Voting Power:      2,110,884*
	Owned by
	Each Reporting	9.	Sole Dispositive Power:	*
	Person With	10.	Shared Dispositive Power:   2,110,884*
	
	11.	Aggregate Amount Beneficially Owned by Each Reporting Person:   
0*
	
	12.	Check if the Aggregate Amount in Row (11) Excludes Certain 
Shares
		(See Instructions):		               Not Applicable
	
	13.	Percent of Class Represented by Amount in Row (11):   30.1% *
	
	14.	Type of Reporting Person (See Instructions):       IA, IN
	

* This is a joint filing by Austin W. Marxe (?Marxe?) and David M. 
Greenhouse (?Greenhouse?).  Marxe and Greenhouse share sole voting and 
investment power over 33,415 shares of Common Stock owned by Special 
Situations Cayman Fund, L.P., 1,451,979 shares of Common Stock owned by 
Special Situations Fund III, L.P., and 625,490 shares of Common Stock 
owned by Special Situations Technology Fund II, L.P.  See Items 2 and 5 
of this Schedule 13D for additional information.


Item 1.	Security and Issuer.
	This schedule related to the common stock of Precision Optics 
Corporation, Inc. (the ?Issuer?). The Issuer?s principal executive 
officers are located at 22 East Broadway, Gardner, MA 01440.

Item 2.	Identity and Background.
	The persons filing this report are Austin W. Marxe (?Marxe?) 
and David M. Greenhouse (?Greenhouse?), who are the controlling 
principals of AWM Investment Company, Inc. (?AWM?), the general partner 
of and investment adviser to Special Situations Cayman Fund, L.P. 
(?Cayman?).  AWM also serves as the general partner of MGP Advisers 
Limited Partnership (?MGP?), the general partner of and investment 
adviser to Special Situations Fund III, L.P. (?SSF3?).  Marxe and 
Greenhouse are also members of SST Advisers, L.L.C. (?SSTA?), the general 
partner of and investment adviser to the Special Situations Technology 
Fund II, L.P. (?Tech II?).   (SSF3, Cayman, SSPE, and Tech II will 
hereafter be referred to as, the ?Funds?).  

The principal office and business address of the Reporting Persons, is 
153 East 53rd Street, 55th Floor, New York NY 10022.

The principal business of each Fund is to invest in equity and equity-
related securities and other securities of any kind or nature.

	Mr. Marxe and Mr. Greenhouse have never been convicted in any 
criminal proceeding (excluding traffic violations or similar 
misdemeanors), nor have either of them been a party to any civil 
proceeding commenced before a judicial or administrative body of 
competent jurisdiction as a result of which he was or is now subject to a 
judgment, decree or final order enjoining future violations of, or 
prohibiting or mandating activities subject to, federal or state 
securities laws or finding any violation with respect to such laws.  Mr. 
Marxe and Mr. Greenhouse are citizens of the United States.

Item 3.	Source and Amount of Funds or Other Consideration.
	Each Fund utilized its own available net assets to purchase 
the securities referred to in this Schedule.

Item 4.	Purpose of Transaction.

	The securities referred to in this Schedule have been acquired 
by each of the Funds for investment purposes and not with the purpose or 
effect of changing or influencing control of the Issuer.  Each Fund 
acquired the securities in the ordinary course of business and is holding 
the securities for the benefit of its investors.





Item 5.	Interest in Securities of the Issuer.

		Cayman owns .5% of the shares outstanding, SSF3 owns 20.7% of 
the shares outstanding and Tech II owns 8.9% of the outstanding shares. 
Messrs. Marxe and Greenhouse share the power to vote and direct the 
disposition of 2,110,884 of Common Stock owned by each of the Funds.  
Messrs. Marxe and Greenhouse are deemed to beneficially own a total of 
2,110,884 shares of Common Stock or 30.1% of the outstanding shares.


The following table reflects the acquisitions and dispositions by each of the 
Funds during the sixty days preceding the date of the event that requires the 
filing of this statement (each of which were effected in ordinary brokers 
transactions):

A.  Special Situations Cayman Fund, L.P. 

Date
Quantity
Average Price

(Purchases)

	
Date
Quantity
Average Price

(Sales)

During February 2005
2,500
$1.44
During March 2005
6,200
$1.32
B. Special Situations Technology Fund II, L.P. 

Date
Quantity
Average Price

(Purchases)

                   

Date

Quantity

Average Price

(Sales)

During March 2005
35,210
$1.29
C. Special Situations Fund III, L.P. 

Date
Quantity
Average Price

(Purchases)

During March 2005
400
$1.51
                   

Date

Quantity

Average Price

(Sales)

During February 2005
7,000
$1.44
During March 2005
101,228
$1.30
		
   D. Special Situations Technology Fund, L.P. 

Date
Quantity
Average Price

(Purchases)

                   

Date

Quantity

Average Price

(Sales)

During March 2005
5,220
$1.29
		
Item 6.	Contracts, Arrangements, Understandings or Relationships With 
Respect to Securities of the Issuer.

		No contracts, arrangements, understandings or similar 
relationships exist with respect to the securities of the Company between 
Messrs. Marxe and Greenhouse and any other individual or entity. 

Item 7.	Material to be Filed as Exhibits.

	Joint Filing Agreement.


Signature

	After reasonable inquiry and to the best of my knowledge and 
belief, I certify that the information set forth in this statement is 
true, complete and correct.


April 7, 2005





	/s/_Austin W. Marxe			
Austin W. Marxe



	/s/_David M. Greenhouse		
David M. Greenhouse






Attention:  Intentional misstatements or omissions of fact constitute 
Federal criminal violations (See 18 U.S.C. 1001).


JOINT FILING AGREEMENT


	Austin W. Marxe and David M. Greenhouse hereby agree that the 
Schedule 13D to which this agreement is attached is filed on behalf of 
each of them.



	/s/_Austin W. Marxe			
Austin W. Marxe



	/s/_David M. Greenhouse		
David M. Greenhouse




 
 
 
 


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