Three-dimensional scanner.

摘要

A three-dimensional scanner has at least three equi-distant circumferentially spaced beam scanning assemblies (8) between which are interposed sensing units (7), the assemblies and units being operatively in a fixed position relative to an object. The scanning assemblies (8) and sensing units (7) are mounted on a table which may be raised or lowered and arranged so that re-entrant profiles of the object which is approximately centrally disposed between the assemblies (8) and units (7) may be determined. Each scanning assembly receives light from a radiant energy source and scans the radiant energy around a portion of an object in discrete steps of, for example, one degree so that in total the entire 360 DEG circumference of the object is illuminated by radiant energy. The sensing units detect and record profile information from the object at each illuminated step so that by using a triangulation calculation the true profile of the object may be deduced and a complete 360 DEG representation of the object may be stored in memory. The profile information may be used in a medical environment where it is required to manufacture a corrective or supportive brace or when cosmetic restoration or enhancement is desired. The scanner is thus able to produce profile information of an object by using scanning assemblies and sensing units which are stationary with respect to an object.