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:
Sep. 03, 2019
Filed:
May. 10, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Yu Miyajima, Utsunomiya, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
In order to provide a discriminating device in which high discrimination accuracy is achieved by appropriately setting parallelism of a plurality of light beams caused to enter a recording material, provided is a discriminating device including: a light guiding member configured to guide a plurality of light beams from a light source to an irradiated surface; an image pickup element configured to receive a light beam from the irradiated surface; and an optical system configured to guide the light beam from the irradiated surface to the image pickup element, wherein the plurality of light beams include a plurality of first light beams which are emitted from the light guiding member and enter a first effective region of the irradiated surface, and wherein the plurality of first light beams form an angle of 7° or less with each other within a first cross section parallel to the irradiated surface.