8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):   June 8, 2004

GSI LUMONICS INC.

(Exact name of registrant as specified in its charter)

New Brunswick, Canada

(State or other jurisdiction of incorporation)

000-25705	98-0110412
(Commission File Number)	(I.R.S. Employer Identification No.)

39 Manning Road, Billerica, Massachusetts 01821

(Address of principal executive offices, including zip code)

(978) 439-5511

(Registrant’s telephone number, including area code)

TABLE OF CONTENTS

Ex-99.1 Investor Presentation

ITEM 9. REGULATION FD DISCLOSURE.

     On June 8, 2004, GSI Lumonics Inc. (the Company) posted to the “Investor News” section of its Internet website (accessible at http://www.gsilumonics.com/investors/) an updated investor presentation (slideshow) in Microsoft® PowerPoint® format. Additionally, beginning on June 8, 2004, officers of the Company will deliver to selected investors and analysts a series of presentations that will include written communication (comprised of this slideshow) which will be disseminated and provided in both written and oral form to the participants. The content of the slideshow is described and furnished as Exhibit 99.1 to this Report on Form 8-K pursuant to Regulation FD and incorporated herein by reference.

ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS.

(a)	Financial Statements of Businesses Acquired.
	Not required.
(b)	Pro Forma Financial Information.
	Not required.
(c)	Exhibits.

99.1 Investor Presentation (written communication comprised of a slideshow posted to the Registrant’s Internet website and to be shown during a series of investor and analysts presentations beginning on June 8, 2004, and furnished pursuant to Item 9 of this Report on Form 8-K).

SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		GSI LUMONICS INC. (Registrant)
Date:  June 8, 2004	By:	/s/ Thomas R. Swain
		Thomas R. Swain
		Vice President, Finance and Chief
		Financial Officer

EXHIBIT INDEX

Exhibit No.	Description
99.1	Investor Presentation (written communication comprised of a slideshow posted to the Registrant’s Internet website and to be shown during a series of investor and analyst presentations beginning on June 8, 2004, and furnished pursuant to Item 9 of this Report on Form 8-K).

EX-99.1

Investor Overview June, 2004 Revision # 070604a

Safe Harbor Certain statements in this presentation may constitute forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995 (the Reform Act), Section 27A of the United States Securities Act of 1933 and Section 21E of the United States Securities and Exchange Act of 1934. These forward-looking statements may relate to anticipated financial performance, management's plans and objectives for future operations, business prospects, outcome of regulatory proceedings, market conditions, tax issues and other matters. All statements contained in this presentation that do not relate to matters of historical fact should be considered forward-looking statements, and are generally identified by words such as "anticipate,'' "believe,'' "estimate,'' "expect,'' "intend,'' "plan'' and "objective'' and other similar expressions. Readers should not place undue reliance on the forward-looking statements contained in this presentation. Such statements are based on management's beliefs and assumptions and on information currently available to management and are subject to risks, uncertainties and changes in condition, significance, value and effect. Other risks include the fact that the Company's sales have been and are expected to continue to be dependent upon customer capital equipment expenditures, which are, in turn, affected by business cycles in the markets served by those customers. Other factors include volatility in the semiconductor industry, the risk of order delays and cancellations, the risk of delays by customers in introducing their new products and market acceptance of products incorporating subsystems supplied by the Company, similar risks to the Company of delays in its new products, our ability to continue to reduce costs and capital expenditures, our ability to focus R&D investment and other risks detailed in reports and documents filed by the Company with the United States Securities and Exchange Commission and with securities regulatory authorities in Canada. Such risks, uncertainties and changes in condition, significance, value and effect, many of which are beyond the Company's control, could cause the Company's actual results and other future events to differ materially from those anticipated. The Company does not, however, assume any obligation to update these forward- looking statements to reflect actual results, changes in assumptions or changes in other factors affecting such forward-looking statements.

Proprietary enabling technologies Components Lasers Laser Systems Strong balance sheet Growth Strategy

Business Segments % of Revenue Q1 2004* *Exceeds 100%, as this includes sales between segments, which is 6% of total sales Q1.

Global Sales Reach % of Revenue Q1 2004

Industry-Leading Customers

GSLI Growth Strategy Develop new products & market niches Acquire enabling technology

Acquisition Strategy Enabling technology Complementary products Use of cash Accretive Track record DRC (2003) Spectron (2003) Westwind Air Bearings (2003) MicroE (2004)

Westwind Rotary motion Cash purchase - $35 million Accretive in Q1'04 Sales in 2003 - $30 million Leading supplier PCB drilling spindles Future growth opportunities: data storage industrial printing

MicroE Motion control Cash purchase - $55 million Accretive Q3'04 Sales in Q1'04 - $7.7 million Leader in data storage Future growth opportunities: robotics medical industrial

Precision Components Component/ Market Scanners Encoders Optics Rotary Motion Light Automotive & Industrial l l l Electronics & Semiconductor l l l l Medical Devices l l Aerospace l l l Scientific & Research l l l

Precision Components Sales (US$ Millions)* * These sales include sales between segments.

Lasers Laser/Market YAG DPSS CO2 YLF Excimer Light Automotive & Industrial l l l l Electronics & Components l l l l l Medical Devices l l l l Aerospace l l Scientific & Research l l l

Lasers Sales (US$ Millions)* * These sales include sales between segments.

Systems System/Market Memory Repair Wafer Trimming Wafer Marking Circuit Trimming PCB Inspection Semiconductor l l l Electronics l l

Systems Sales (US$ Millions)

Market Drivers Notebook pc's Mobile phones PDA's Digital cameras Wireless tools & equipment Flat panel displays

GSLI - Revenue & Earnings Trends Revenues (US$ Millions) Earnings (US$ Millions)

GSLI - Bookings & Backlog (US$ Millions) Bookings* Backlog** * This excludes Westwind a.prior to 2004. * * This includes Westwind

GSLI - Selected Balance Sheet Cash & Investments $114 US million Total Assets $330 US million NBV $273 US million Actual as of April 2, 2004

Targeted Business Model Q1 2004 Target Revenues Gross margin Engineering SG & A expenses Amortization of purchased intangibles Restructuring and other Operating profit 100 % 100 % 39.7 % 44 % 6.4 % 10 % 18 % 17 % 2.1% 2 % 0 % 13.2 % 15 %

GSLI - In Review Position: New products Excellent market relationships Strong balance sheet - no debt Growth: Business recovery Acquire technologies Expand market niches