The first non-obvious advancement of the United Sciences technology was scanning inside a cavity—that is, putting a scanner in a hole. It was considered impossible to get light in and out of a small hole for the purposes of imaging because all conventional 3D scanning technology used only forward illumination to scan the surface of objects and not their interior. United Sciences turned scanning inside out by developing a proprietary lens structure that projected radial illumination within the cavity thereby enabling the scanner to project sideways within a cavity.read more...
Only technology capable of accurately scanning and measuring a hole or cavity through non-contact means
3D ear scan on Steve Wozniak, co-founder of Apple
As many as 7 million holes on a single airplane frame need to be inspected.