INFRARED ... the world leader in CO2 laser optics VARIABLE RADIUS MIRRORS (VRMs) Dynamically Change Beam Characteristics on the Fly 888.558.1504 (toll-free) • 724.352.1504 (phone) • 724.352.4980 (fax) • www.iiviinfrared.com I

IN FR ARED VARIABLE RADIUS MIRRORS (VRMs) The II-VI Variable Radius Mirror (VRM) allows users to dynamically change their beam characteristics on the fly. By controlling the VRM’s radius of curvature with water or air pressure, users can adjust the laser beam divergence. VRM’s allow focus depth adjustment during material piercing; this produces optimum process speed. It also allows flying optics systems manufacturers to compensate for focal length variations across the working table. This is especially important with large working tables, where beam divergence or beam diameter could be changing...

VARIABLE RADIUS MIRRORS (VRMs) Standard Mirror Diameter: Usable Clear Aperture: Radius Range*: Pressurization Method: Pointing Stability: Near normal, 45 degrees Reflectivity with MMR-A Type Coating: * Customized radius range available. M is meter, CC is concave, CX is convex, PO is piano

IN FR ARED APPLICATIONS Overview The evolution of laser cutting continues to drive the need for better control and simultaneous flexibility. The introduction of the variable radius mirrors affords the laser integrator both of these goals. Whether it’s maintaining control of the divergence of the laser beam over the entire cutting area or it’s adjusting the depth of focus of the lens; variable radius mirrors can bring a new dimension to the 2D or 3D laser cutting process. Dynamic Beam Divergence Control One challenge for the laser integrator has been maintaining consistent cutting quality at the...

VARIABLE RADIUS MIRRORS (VRMs) Beam Delivery System Example VRM CX VRM ZnSe focusing lens Laser source Example of a Variable Collimator Work piece Example of Dynamic Focus Adjustment

JJ-^/J INFRARED Example Water Cooling Method Will Control Pump Variable Speed Water Pump Water Pressure in this Section Must be Variable Copper Laser Mirror with Water Cavity for ^Pressure Transducer - Example Air Cooling Method CNC Controller that Will Pressure Valve Pressure Value Air Pressure in this Section Must be Variable from 0 to Copper Laser Mirror Orifice to Restrict pumP 888.558.150f (toll-free USA and Canada) • 72f.352.150f (phone) • 72f .352.f980 (fax)

VARIABLE RADIUS MIRRORS (VRMs) Typical Step Response Time (seconds) Typical Step Response Time (seconds)

JJ-^/J INFRARED BASE CONFIGURATIONS • Near Normal Incidence • Water Pressurized • Water Pressurized • Water Pressurized • Water Pressurized 888.558.150f (toll-free USA and Canada) • 72f.352.150f (phone) • 72f .352.f980 (fax)

Near Normal Incidence Water Pressurized VARIABLE RADIUS MIRRORS (VRMs)

10-11 888.558.150f (toll-free USA and Canada) • 72f.352.150f (phone) • 72f .352.f980 (fax)

VARIABLE RADIUS MIRRORS (VRMs)

888.558.150f (toll-free USA and Canada) • 72f.352.150f (phone) • 72f .352.f980 (fax)

VARIABLE RADIUS MIRRORS (VRMs)

888.558.150f (toll-free USA and Canada) • 72f.352.150f (phone) • 72f .352.f980 (fax)

VARIABLE RADIUS MIRRORS (VRMs)

...the world leader in CO 2 laser optics WORLDWIDE SALES OFFICES To place an order, contact a II-VI sales representative at any of the following locations, or log onto www.iiviinfrared.com/contact for our most complete and up-to-date contact information. II-VI INFRARED II-VI WEST II-VI DEUTSCHLAND GmbH 375 saxonburg blvd saxonburg, pa 16056 UNITED STATES 36570 BRIGGS ROAD MURRIETA, CA 92563 USA 800.262.5273 (toll free in USA) 951.926.7640 (phone) 951.926.1984 (fax) [email protected] BAAIKENSSTRAAT 21/2 9240 ZELE BELGIUM IM TIEFEN SEE 58 D-64293 DARMSTADT GERMANY II-VI Suisse S.a.r.l. II-VI...