Combined total-internal-reflectance and tissue imaging systems and methods
US7347365B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2004 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Jul 7, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/145
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and systems are provided for combining total-internal-reflectance and tissue imaging to perform biometric functions. The system may include an illumination source, a platen, a light detector, an optical train, and a computational unit. The platen is disposed to make contact with a skin site of an individual. The optical train is disposed to provide optical paths between the illumination source and the platen, and between the platen and the light detector. The combination of the illumination source and optical train provides illumination to the platen under multispectral conditions. The computational unit is interfaced with the light detector and has instructions to generate a total-internal-reflectance image of the skin site from a first portion of light received from the skin site, and to generate a tissue image of the skin site from a second portion of light received from the skin site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.