Method and apparatus for determining the color of an object that is transparent, diffusing, and absorbent, such as a tooth, in particular
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 27, 1995
Grant Date -
N/A
app pub date -
Dec 20, 1993
filing date -
Dec 22, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for determining the color of an object which is transparent, diffusing, and absorbent, by illuminating an area of the object by means of a diffuse light flux that is substantially uniform and isotropic, by picking up the light backscattered by a small fraction of the illuminated area of the object by means of an optical system that comprises achromatic doublets and both infrared and ultraviolet filters, together with a diaphragm, and spectrally analyzing said light by means of interference filters and photodetectors. The invention is particularly suitable for determining the color of teeth in the mouth.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully