High definition blood trailing flashlight
US9410879B1 · kind B1 · utility
5Cited by
20References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2014 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Jul 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/255
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light-emitting device configured to illuminate blood includes a white light source configured to emit white light, and a filter configured to progressively attenuate portions of the white light having wavelengths up to a transition wavelength within a red light spectrum of the white light. The transition wavelength may be in the range of about 610 nm to about 618 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.