QuickLinks
 -- Click here to rapidly navigate through this document
  



 
 

Exhibit 10.22    
    


THIS
DEBENTURE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND HAS BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE
OR DISTRIBUTION THEREOF. NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR A VALID EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
SECURITIES ACT, AND COMPLIANCE WITH APPLICABLE STATE SECURITIES LAWS. 


THIS
DEBENTURE IS SUBJECT TO THE PROVISIONS OF THAT CERTAIN DEBENTURE PURCHASE AGREEMENT, DATED AS OF DECEMBER 19, 2001. A COPY OF THAT AGREEMENT IS ON FILE AT THE PRINCIPAL OFFICE OF THE COMPANY. 


7% SUBORDINATED CONVERTIBLE DEBENTURE  



	$	 	December    , 2001





        FOR
VALUE RECEIVED, the undersigned, 3D Systems Corporation, a Delaware corporation (hereinafter referred to as the "Company"), hereby promises to pay
to                        , a
                        ("Purchaser"), to the extent not previously redeemed or converted in accordance with the terms hereof, the
principal sum of                        dollars
($            ) and to pay interest on the outstanding principal balance of this Debenture (this "Debenture") in accordance with Section 3 hereof. 


        1.    Purchase Agreement.    This Debenture is one of the Debentures issued pursuant to the Debentures Purchase
Agreement dated as of December 19, 2001 (the "Purchase Agreement"), among the Company, Purchaser and the other purchasers identified on Schedule I thereof. The Purchaser is entitled to
the benefits of the Purchase Agreement to which reference is hereby made for a statement of all applicable terms and conditions. All capitalized terms, unless otherwise defined herein, shall have the
meanings ascribed to them in the Purchase Agreement. 



        2.    Maturity Date.    To the extent not converted or redeemed, the Company agrees to pay the principal amount of the
indebtedness evidenced hereby on December 31, 2006 (the "Maturity Date"). 


        3.    Interest.    


        The
principal amount of this Debenture from time to time outstanding shall bear interest at the rate of seven percent (7%) per annum (the "Coupon Rate") from the date hereof and
continuing until the payment in full. 


        Interest
shall be payable quarterly in arrears on January 2, April 1, July 1 and October 1 of each year, beginning on January 2, 2002 or, in the case
of any redemption or conversion, the date of such redemption or conversion as provided for under the Purchase Agreement. Interest payable shall be paid, at the option of the Company, either
(i) in lawful money of the United States of America and in immediately available funds or (ii) by increasing the outstanding principal balance of this Debenture by the amount of interest
payable to the Purchaser by the Company. Accrued and unpaid interest payable at the Maturity Date or any Redemption Date or Conversion Date shall be paid only in lawful money of the United States of
America and in immediately available funds. 


        4.    Method of Payment.    Payments shall be made in the manner specified in Section 2.5 of the Purchase
Agreement. 


        6.    Subordination.    The rights of the holder of this Debenture are subordinated in accordance with the provisions
of Article VII of the Purchase Agreement. 


1





 



        7.    Events of Default.    Upon and after the occurrence of an Event of Default, as defined in the Article VI
of the Purchase Agreement, this Debenture may, as provided in the Purchase Agreement, and without presentment, demand, notice or legal process of any kind, be declared, and immediately shall become,
due and payable. 


        8.    Redemption.    This Debenture is redeemable at a price equal to 107% of the outstanding principal amount the
Debenture in accordance with the provisions of Section 2.2 of the Purchase Agreement. 



        9.    Conversion.    This Debenture is convertible at a per share conversion price of $12.00, subject to certain
adjustment, in accordance with the provisions of Sections 2.3 and 2.4 of the Purchase Agreement. 


        10.    Governing Law.    This Debenture shall be interpreted, governed by and construed in accordance with, the laws
of the State of California, without regard to its conflict of laws principles. 


        IN
WITNESS WHEREOF, the undersigned has executed this Debenture as of the day and year first written above. 



	

 	
 	

3D SYSTEMS CORPORATION
	

 	
 	

 	

 	

 
	 	 	By:	 

	 	 	 	Name:

Title:	 




2









QuickLinks



Exhibit 10.22