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:
Feb. 12, 1985
Filed:
Mar. 25, 1982
Applicant:
Inventor:
Fred C Unterleitner, Palo Alto, CA (US);
Assignee:
Becton, Dickinson and Company, Paramus, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356 73 ; 356318 ; 2504612 ;
Abstract
A flow cytometry apparatus comprises a nozzle for flowing particles in a stream of fluid. A source of light, such as from a laser, is adapted to direct a beam of light at the flowing particles. A beam focusing lens is positioned in the optical path of the light beam to provide an elliptical beam spot at the focal stream to thereby elongate the focal spot of the beam. One or more parameters of the particles in the stream related to light from the beam striking the particles is detected in the flow cytometry apparatus.