05745229 is referenced by 92 patents and cites 40 patents.

Color measuring systems and methods are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object 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 being measured. Under processor control, the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence 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.

Title
Apparatus for determining optical characteristics of an object
Application Number
8/581851
Publication Number
5745229
Application Date
January 2, 1996
Publication Date
April 28, 1998
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
LJ Laboratories L L C
IL, US
IPC
G01N 21/47
G01N 21/64
G01J 3/51
G01B 11/30
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