Apparatus and method for measuring optical characteristics of an object
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United States of America Patent
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Aug 7, 2001
Issued Date -
N/A
app pub date -
Dec 29, 1999
filing date -
Jul 1, 1997
priority date (Note) -
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Abstract
Optical characteristic measuring systems and methods for determining the color or other optical characteristics of teeth comprising a probe body (2) wherein the probe provides light to the surface of the object/tooth (20). Perimeter receiver fiber optics (102) are spaced apart from a source fiber optic and receive light from the surface of the object/tooth (20) being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics (102) to determine information regarding the height and angle of the probe with respect to the object/tooth being measured wherein the numerical apertures of the receiver fiber optics (102) are different.
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