The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 2004
Filed:
Mar. 24, 2003
Shiv Sharma, Little Chalfont, GB;
Amersham Biosciences UK Limited, Amersham, GB;
Abstract
Laser pulses from laser head pass through objective lens to a focal spot in sample spot . If a pulse hits a fluorophore molecule in the focal spot a fluorescence photon is emitted which is collected by lens , reflected by dichroic mirror through filter , which blocks photons of other wavelengths, to single photon counting photomultiplier unit . On detecting a photon, photomultiplier unit generates an output pulse which is coupled, with a short delay, by pulse controller to driver circuit which causes laser head to generate another laser pulse. Thus the interval between the laser pulses is substantially equal to the time between excitation of, and fluorescence emission by, the fluorophore molecule. Computer coupled to photomultiplier unit and driver circuit determines the decay time by measurement of a number of fluorescence events.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile