Intra-oral camera for diagnostic and cosmetic imaging
US7929151B2 · kind B2 · utility
105Cited by
15References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Jun 18, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0088
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for obtaining images of a tooth comprises at least one image sensor disposed along an optical axis to take polarized reflectance image and fluorescence image, at least one broadband illumination apparatus for reflectance imaging, and a narrow-band ultraviolet illumination apparatus for fluorescence imaging. In order to remove the specular reflection, one or more polarization elements are disposed along the optical axis. A filter is disposed along the optical axis to block narrow-band ultraviolet light, and a switch for selecting one of the operation modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.