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. 21, 2018
Filed:
Mar. 04, 2016
Rion Co., Ltd., Tokyo, JP;
RION Co., Ltd., Tokyo, JP;
Abstract
An irradiation optical systemirradiates a fluid flowing in a flow passagewith one light among a plurality of lights obtained by branching light from a light sourceand forms the detection area. A detection optical systemmakes scattered light with a different direction from an optical axis of the irradiation optical system enter a beam splitteramong the scattered lights from particles contained in the fluid in this detection area. Meanwhile, a beam expandermakes another light among the plurality of lights enter the beam splitteras reference light. A detectorreceives an interference light, by the scattered light and the reference light, obtained by the beam splitterby light receiving elements and generates a detection signal corresponding to the interference light. A counting unitcounts the particles based on this detection signal.