For automated applications, Daheng Optics developed motorized zoom beam expanders --GCD-14 series. GCD-14 series employ the 4 lens element optical designs and the build-in adjustment motors for controlling lens groups. With the motorized systems, both magnification and focus can be controlled independently. With Daheng Optics motorized zoom beam expanders, variable expansion ratio can automatically be set ranging from 1.5X~6X. This variability helps to reduce machine set up times and provides flexibility to equipment for a wide range of jobs.