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:
Mar. 23, 2021
Filed:
Aug. 21, 2015
Hitachi, Ltd., Tokyo, JP;
Takashi Anazawa, Tokyo, JP;
Yoshinobu Kohara, Tokyo, JP;
Chihiro Uematsu, Tokyo, JP;
Yusuke Goto, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
A light detection device comprises: a flow path section in which a plurality of lines of flow of a plurality of dropletsdispersed in oil and moving along a linear line of flow is retained on an array plane; a laser beam irradiation section which introduces a laser beamin a direction in which the plurality of lines of flow are arrayed in the flow path section to irradiate the plurality of lines of flow; and a light detection section which detects emitted light generated from the plurality of lines of flow by the irradiation of the laser beam, from a vertical direction with respect to the array plane. A refractive index of the oil no and a refractive index of the droplets nd have a difference such that −0.02≤nd−no≤0.05.