Optical measurement devices and instruments, namely, self-positioning 3D scanners specially adapted for products engineering, and products designing and development in the aerospace, automotive, biomechanics, consumer products, educational, heritage preservation, architectural, healthcare, and multimedia industries; handheld self-positioning laser scanners; 3D scanning laser scanners; self-positioning 3D scanners specially adapted for products engineering, and products designing and development; portable high accuracy and high definition laser camera for scanning of solid objects; downloadable computer software for performing 3D data and measurement acquisitions; downloadable computer software for use in the post-treatment and finalization of 3D scan data and for use in 3D printing devices and for use as computer-aided design (CAD) software for general use