Back to results
US 12,727,764 B2Granted
Dental caries detection device
AssigneeTamron Co., Ltd.
InventorAtsushi Sayama
Life of this patent
Estimating the term…
Abstract
A tooth of a subject is irradiated with light having a specific polarization direction, and each of two or more polarization components in Raman-scattered light from the tooth is separated by a polarization separation element and detected by a detector. Polarization anisotropy of the Raman-scattered light is obtained from a detection signal of each polarization component, and dental caries in the tooth is detected based on the polarization anisotropy.
Claims12
A dental caries detection device comprising:
- a light source configured to emit light having a first polarization direction;
- a polarization separation unit configured to separate the light having the first polarization direction and other light having a second polarization direction in Raman- scattered light from a tooth of a subject irradiated with the light having the first polarization direction;
- a detector configured to detect each of the light having the first polarization direction and the light having the second polarization direction separated by the polarization separation unit;
- and
- an anisotropy acquisition unit configured to obtain polarization anisotropy of the Raman-scattered light by obtaining a detection signal of each of the light having the first polarization direction and the light having the second polarization direction from the detector and analyzing the detection signal.
2 more elements
Dependencies are inferred from the claim text.