Patent ID: 8124949
Filing Date: 2012-02-28
Classification: G01T

Abstract:
1. A scan head assembly for use as part of a digital radiography device comprising: An exterior housing having mounting means for positioning and removeably mounting the scan head assembly within the digital radiography device; An optics assembly secured within the housing and adapted for generating and scanning a focused laser beam through a narrow elongated opening positioned along one side of the housing, said optics assembly comprising a laser and rotating mirror assembly; a plurality of folding mirrors for directing the scanning laser beam through the opening in the housing; and a light collection assembly having a pair of spaced apart opposing reflective surfaces for receiving light from outside the housing and reflecting said light to a light measuring device coupled to the light collection assembly, wherein the scan head is adapted to be maintained in a fixed position within the digital radiography device during operation and for removal and replacement when servicing, and wherein the laser and rotating mirror assembly further comprises an adjustable support base coupled within the housing and adapted to allow relative adjustment of the laser and rotating mirror assembly.