Measurement of fluorescence
US4804850A · kind A · utility
55Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1987 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Mar 13, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0621
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluorometer probe head and a method of operating a probe to overcome problems of reflectance. A preferred embodiment for determination of chlorophyll in plant leaves uses a red LED and a green LED consecutively directed to a particular target spot and a photodiode records fluoresced and reflected signals to provide an accurate result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.