An autocollimator is an optical instrument for non-contact angle measurement. They are commonly used to align components and measure deflection in optical or mechanical systems. Autocollimators work by projecting an image onto an objective mirror and then measuring the deflection of the returned ima

3D object scanningIn the field of 3D object scanning, laser scanning (also known as lidar) combines the controlled steering of a laser beam with a laser rangefinder. By taking distance measurements in every direction, the scanner can quickly capture the surface shape of objects, buildings and landsc

Laser scanning is the controlled deflection of a visible or invisible laser beam. [1] Scanning laser beams are used in some 3D printers, rapid prototyping, materials processing machines, laser engraving machines, ophthalmic laser systems for the treatment of presbyopia, confocal microscopes, laser p