new dimensions – optics in motion The dynamic focusing units of the varioSCAN and varioSCANde i series enable exceptionally precise, high-performance positioning of the laser focus along the optical axis. In XY scan systems, the varioSCAN can replace costly flat field objectives. Therefore, the varioSCAN is an ideal solution in applications for which standard flat field objectives are unavailable. The varioSCAN can also extend XY scan systems into 3D beam deflection systems. The laser focus is guided along the contour of the workpiece being processed, thus enabling processing in three dimensions. The varioSCANFLEX additionally allows continuously adjusting the image field size, working distance and spot size. The varioSCANde i offers double the maximum travel of conventional varioSCANs and much lower tracking error, resulting in a larger focus-shift range and better spot quality. Its accuracy, speed, resolution and linearity, too, are clearly superior to those of all other varioSCAN units, while substantially eliminating the effects of drift. In addition, the varioSCANde i delivers all advantages of iDRIVE technology: extensive flexibility, high dynamic performance, realtime querying of actual position and other status parameters, etc. The high-end member of the varioSCAN series of focusing units is the varioSCANde i. It is equipped with a digital linear encoder. Typical Applications: • • • • • Drilling, cutting, welding Laser deep engraving Rapid prototyping, rapid tooling Microstructuring 3D wor

varioSCAN Functionality Scan head Adjustable mirrors F-Theta objective (optional) Beam expander (optional) SCANLAB offers – for varioSCAN, varioSCANde i and the whole scan system – optical configurations for a wide variety of working distances, image field sizes, beam diameters, wavelengths and laser powers for optimally tuning the system to the customer’s particular application. Thus, a maximum image field size is achieved with the minimum spot size. The focusing optic of the varioSCAN 40FLEX is motor-driven, enabling continuously variable image field sizes and working distances. The varioSCAN...

Typical 3-Axis Scan System Optical Configurations varioSCANde 40i Flat field objective Image field size Focus range in z direction Beam expansion factor Average focus shift per lens travel Focal length varioSCAN Example for a possible position of the focusing unit Type-Dependent Specifications varioSCANde 20i Beam input aperture Output aperture Motor specifications Maximum lens travel Tracking error Typical travel speed Repeatability Nonlinearity Long-term drift (over 8 hours, at constant Power requirements ±(15+1.5) V DC, max. 1.5 A each XY2-100 Standard, SL2-100 or analog (2) 30 V DC (29-33V),...