Multiple wavelength sensor substrate
US7761127B2 · kind B2 · utility
887Cited by
428References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2006 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Apr 28, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S439/909
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A physiological sensor has emitters configured to transmit optical radiation having multiple wavelengths in response to corresponding drive currents. A thermal mass is disposed proximate the emitters so as to stabilize a bulk temperature for the emitters. A temperature sensor is thermally coupled to the thermal mass. The temperature sensor provides a temperature sensor output responsive to the bulk temperature so that the wavelengths are determinable as a function of the drive currents and the bulk temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.