The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 2010
Filed:
Oct. 13, 2006
Rongguang Liang, Penfield, NY (US);
Victor C. Wong, Rochester, NY (US);
Mark E. Bridges, Spencerport, NY (US);
Michael A. Marcus, Honeoye Falls, NY (US);
David L. Patton, Webster, NY (US);
Peter D. Burns, Fairport, NY (US);
Paul O. Mclaughlin, Rochester, NY (US);
Rongguang Liang, Penfield, NY (US);
Victor C. Wong, Rochester, NY (US);
Mark E. Bridges, Spencerport, NY (US);
Michael A. Marcus, Honeoye Falls, NY (US);
David L. Patton, Webster, NY (US);
Peter D. Burns, Fairport, NY (US);
Paul O. McLaughlin, Rochester, NY (US);
Carestream Health, Inc., Rochester, NY (US);
Abstract
An apparatus for imaging a tooth having a light source with a first spectral range and a second spectral range. A polarizing beamsplitter () light having a first polarization state toward the tooth and directs light from the tooth having a second polarization state along a return path toward a sensor (), wherein the first and second polarization states are orthogonal. A first lens () in the return path directs image-bearing light from the tooth, through the polarizing beamsplitter (), toward the sensor (), and obtains image data from the redirected portion of the light having the second polarization state. A long-pass filter () in the return path attenuates light in the second spectral range. Control logic enables the sensor to obtain either the reflectance image or the fluorescence image.