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:
Aug. 07, 2001
Filed:
Nov. 03, 1999
Paul J. Bjorkholm, Newport Beach, CA (US);
PerkinElmer Detection Systems, Inc., Cypress, CA (US);
Abstract
A dual beam modulator (,) includes a rotatable cylinder (,) having annular walls (,) and a set of a plurality of discrete chordal passages (,) extending through the walls between opposing holes in the outer surface of cylinder walls (,). Each of the passages (,) is spaced radially about each of the walls (,) and longitudinally in the direction of the longitudinal axis of the cylinder (,) for producing, in response to an incident fan beam of radiation (,), a series of discrete pencil beams (,) as the cylinder (,) rotates. The cylinder (,) further has reduced radius sections (,) on the outer surface of the walls (,) for periodically passing the incident fan beam (,) alternately with the series of pencil beams (,) as the cylinder (,) rotates.