David laser scanner supports both 'classic' laser scanning and 'structured light' (SL) scanning

Structured light scanning makes scanning faster and easier by using a standard video projector, instead of the single-line laser and camera employed in laser scanning. The video projector is connected to a PC and the David 3 uses it to illuminate and scan the object with several stripe patterns. Within seconds of initiating the process, the 3D scan results appear on the monitor screen. SL scanning does not require calibration panels in the background during the scanning process and it is a much faster one-click initiated process compared with the hand-held laser scanning. There are no moving parts or inaccuracies arising from hand tremors etc. On the downside, while prices are dropping, projectors are still more expensive than lasers. Also SL scanning requires darkened conditions, usually darker than required for laser scanning and it is not suitable for smaller objects with fine details, because projectors typically cannot be focused to very short distances. However, because the David 3 is set up to offer both SL scanning and hand-held laser scanning capabilities, the user has the flexibility to select the best method for the application and maximise the benefits of each scanning method. Furthermore, the new user interface makes the David 3 more versatile, extendable and user-friendly while remaining compatible with the same hardware as previous versions.