05880826 is referenced by 91 patents and cites 45 patents.

Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object/tooth being measured. Under processor control, the optical characteristics measurement may be made at a predetermined height and angle. Various color 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 dental prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a patient data base.

Title
Apparatus and method for measuring optical characteristics of teeth
Application Number
8/886564
Publication Number
5880826
Application Date
July 1, 1997
Publication Date
March 9, 1999
Inventor
Alan R Loudermilk
Chicago
IL, US
Russell W Jung
Morton Grove
IL, US
Wayne D Jung
Morton Grove
IL, US
Agent
Loudermilk & Associates
Assignee
L J Laboratories L L C
IL, US
IPC
G01B 11/30
G01N 21/47
G01N 21/55
G01N 21/25
G01N 21/00
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