Press Release For More Information Contact: Barbara Calt, Director of Sales Lambda Research Corporation 25 Porter Rd. Littleton, MA 01460 Phone: 978-486-0766 Ext. 11 Fax: 978-486-0755 Email: bcalt@lambdares.com

LAMBDA RESEARCH CORPORATION ANNOUNCES THE RELEASE of OSLO^® 6.4.3

OPTICAL DESIGN SOFTWARE

FOR WINDOWS AND LINUX PLATFORMS

Littleton, Massachusetts, January 19, 2007 -- Lambda Research Corporation, developer of optical software OSLO, TracePro^® , and TracePro Bridge™ for SolidWorks^® , announces the latest release of the lens design software, OSLO. The 6.4.3 release of OSLO has 18 additions and improvements over the previous OSLO release. The added advancements in the latest OSLO release further advance the flexibility and open architecture of the program, allowing the user to modify, customize and adapt the program to the users’ specific needs.

Among the highlights of the new OSLO 6.4.3 release is an added CCL command which accesses and copies any OSLO plot or graphic to the MS Windows clipboard as a bitmap. This command exposes this cut and paste functionality so it can be used in any OSLO macro and enables OSLO users to have greater control and flexibility in creating custom OSLO macro programs.

Another highlight of the OSLO 6.4.3 release is an update of Modulation Transfer Function reports so that the analysis now utilizes field points from the field point set with both x-field and y-field data. This enables users to more conveniently quantify MTF system performance over a 2-dimensional field. Furthermore, the surface form of the anamorphic aspheric surface is now more accurately described by the surface curvature and the conic constant, allowing the OSLO users to reliably model general anamorphic surface shapes without the control problems usually associated with spline surfaces.

The OSLO global variable referencing surface based interferometer files is now a function of both the surface number as well as the instance number of the interferometer file on a particular surface. Consequently, the user is now able to access this data via CCL and DLL commands, recognizing whether the multiple interferometer files contain wavefront, surface or filter data. This provides OSLO macros with the capability to provide convenient feedback to the user as to the source and type of an error added to any optical surface in the design and enables the user to perform complex tolerance modeling to predict the asbuilt performance of real optical systems.

The new OSLO release includes a total of 18 additions and improvements, all of which are listed in the OSLO 6.4.3 Revision history available for download at http://www.lambdares.com/pub/oslo/OSLORevisionHistory.pdf .

Current OSLO customers will find the OSLO 6.4.3 update installer available for download on Lambda Research’s web site at http://www.lambdares.com/techsupport/osloupdate.phtml .

Any graphics can now be copied and pasted to the Windows clipboard using OSLO’s macro language.

NEW PRODUCT ANNOUNCEMENT

Release of OSLO^® 6.4.3

The 6.4.3 release of OSLO features 18 additions and improvements. Among the highlights of the new OSLO 6.4.3 release is the an added CCL command which accesses and copies any OSLO plot or graphic to the MS Windows clipboard as a bitmap enabling OSLO users to have greater control and flexibility in creating custom OSLO macro programs. Another highlight of the OSLO 6.4.3 release is an update of Modulation Transfer Function reports so that the analysis now utilizes field points from the field point set with both x-field and y-field data enabling users to more conveniently quantify MTF system performance over a 2-dimensional field. The OSLO global variable referencing surface based interferometer files is now a function of both the surface number as well as the instance number of the interferometer file on a particular surface enabling the user to access this data via CCL and DLL commands, and recognizing whether the multiple interferometer files contain wavefront, surface or filter data. This provides a feedback to the user as to the source and type of an error added to any optical surface in the design and enables the user to perform complex tolerance modeling to predict the as-built performance of real optical systems. For more information, please visit www.lambdares.com .