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:
Jul. 01, 2025
Filed:
Aug. 04, 2022
Quanta Computer Inc., Taoyuan, TW;
Kai-Ju Cheng, Taoyuan, TW;
Yu-Hsun Chen, Taoyuan, TW;
Hao-Ping Lee, Taoyuan, TW;
Tong-Ming Hsu, Taoyuan, TW;
Chin-Yuan Ting, Taoyuan, TW;
Shao-Ang Chen, Taoyuan, TW;
Kuan-Chung Chen, Taoyuan, TW;
Hsin-Lun Hsieh, Taoyuan, TW;
QUANTA COMPUTER INC., Taoyuan, TW;
Abstract
A distinguishing device for dental plaque and dental calculus includes a light-emitting diode, an image sensing unit, and a processor. The light-emitting diode movies in a first direction and is separated from teeth in an oral cavity by a predetermined distance in a second direction. The second direction is perpendicular to the first direction. The light-emitting diode generates a blue light to illuminate the teeth, so that dental plaque on the teeth generates a first autofluorescence and dental calculus on the teeth generates a second autofluorescence. The image sensing unit is configured to sense the first autofluorescence and the second autofluorescence. The processor is coupled to the image sensing unit to distinguish a dental plaque area from a dental calculus area on the teeth according to the first autofluorescence and the second autofluorescence.