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Emerald Group Publishing Limited
Copyright © 2000, MCB UP Limited
Keywords Fibre optics, Counterfeiting
Applicant: LJ Lab L L C (US)Patent number: US6038016Publication date: 14 March 2000Title: Method and apparatus for detecting and preventing counterfeiting
Optical characteristic measuring systems and methods such as for determining the colour or other optical characteristics of an object are disclosed. Perimeter receiver fibre optics are spaced apart from a source fibre optic and receive light from the surface of the object being measured. Light from the perimeter fibre optics pass to a variety of filters. The system utilizes the perimeter receiver fibre optics to determine information regarding the height and angle of the probe with respect to the object being measured. Under processor control, the optical characteristics measurement may be made at a predetermined height and angle. Various colour spectral photometer arrangements are disclosed. Translucency, fluorescence, gloss and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention. A method of producing prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a database. Such methods and implements are desirably utilized for purposes of detecting and preventing counterfeiting or the like.