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:
Dec. 13, 2016
Filed:
Nov. 01, 2012
Taroh Sawaki, Yokohama, JP;
Hideaki Hirai, Yokohama, JP;
Ryosuke Kasahara, Yokohama, JP;
Hiroyoshi Sekiguchi, Yokohama, JP;
Taroh Sawaki, Yokohama, JP;
Hideaki Hirai, Yokohama, JP;
Ryosuke Kasahara, Yokohama, JP;
Hiroyoshi Sekiguchi, Yokohama, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An attached matter detector includes a light source configured to irradiate light toward a plate-like transparent member from one surface thereof, an imaging device configured to image reflection light by attached matter on a surface of the plate-like transparent member, a memory configured to previously store flare information obtained by the image device by turning on the light source in a state without having disturbance light and the attached matter on the surface of the plate-like transparent member, and a difference information-obtaining device configured to obtain difference information between a light-up image as an image obtained by the imaging device with the turned-on light source and a light-out image as an image obtained by the imaging device with the turned-off light source, wherein the attached matter on the surface of the plate-like transparent member is detected based on the difference information and the flare information stored in the memory.