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:
Jan. 14, 2020
Filed:
Oct. 23, 2018
Nidec Sankyo Corporation, Suwa-gun, Nagano, JP;
Masahiro Ikeda, Nagano, JP;
NIDEC SANKYO CORPORATION, Nagano, JP;
Abstract
An information reading device may include a transparent placement member, a first illumination part, a second illumination part, a first optical system structured to read information on the medium, a second optical system structured to read another information on the medium, a housing formed with a medium insertion port and in which the placement member, the first illumination part, the second illumination part, the first optical system and the second optical system are accommodated, and a semi-light shielding member having a semi-light shielding part which transmits light of a part of a wavelength region and blocks lights of other wavelength regions and covers at least an upper side of the medium insertion port. A transmittance curve indicating a relationship between transmittance of light and a wavelength of the semi-light shielding part is a curve having a peak within a wavelength region of visible light.