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:
Jun. 13, 2023
Filed:
Apr. 06, 2022
Maxell, Ltd., Kyoto, JP;
Hitachi Industry & Control Solutions, Ltd., Ibaraki, JP;
Koji Hirata, Kyoto, JP;
Masahiko Yatsu, Kyoto, JP;
Toshinori Sugiyama, Kyoto, JP;
Kazuomi Kaneko, Ibaraki, JP;
MAXELL, LTD., Kyoto, JP;
HITACHI INDUSTRY & CONTROL SOLUTIONS, LTD., Ibaraki, JP;
Abstract
The information display apparatus configured to display video information of a virtual image on a reflecting surface of conveyance includes: a display configured to display the video information; and a virtual image optical system configured to display a virtual image at a front of the conveyance by reflecting light emitted from the display by means of the reflecting surface. The virtual image optical system includes a concave mirror and an optical element. The optical element is arranged between the display and the concave mirror, and is configured to correct distortion of the virtual image obtained so as to correspond to a viewpoint position of a driver on a basis of a shape of the concave mirror and a shape of the optical element. The information display apparatus further includes a virtual image double image conversion reducer configured to reduce double image conversion of the virtual image.