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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.:

US 11119315 B1

PDFFull Text
Date of Patent:
Sep. 14, 2021

Filed:

Oct. 15, 2015

Information display apparatus

Applicants:

Maxell, Ltd., Kyoto, JP;

Hitachi Industry & Control Solutions, Ltd., Hitachi, JP;

Inventors:

Koji Hirata, Kyoto, JP;

Masahiko Yatsu, Kyoto, JP;

Kazuomi Kaneko, Kyoto, JP;

Assignees:

MAXELL, LTD., Kyoto, JP;

HITACHI INDUSTRY & CONTROL SOLUTIONS, LTD., Hitachi, JP;

Attorney:

Mattingly & Malur, PC

Primary Examiner:

Charles L Beard

Int. Cl.
CPC ...
G02B 27/01 (2006.01); B60K 35/00 (2006.01); G02F 1/1335 (2006.01); G02F 1/13363 (2006.01); G09G 3/36 (2006.01); G02F 1/13357 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); B60K 35/00 (2013.01); G02B 27/0179 (2013.01); G02F 1/13363 (2013.01); G02F 1/133528 (2013.01); G02F 1/133615 (2013.01); G09G 3/36 (2013.01); B60K 2370/1529 (2019.05); B60K 2370/23 (2019.05); B60K 2370/31 (2019.05); B60K 2370/331 (2019.05); B60K 2370/48 (2019.05); B60K 2370/52 (2019.05); G02B 2027/0185 (2013.01); G02B 2027/0187 (2013.01); G02F 1/13336 (2013.01); G02F 1/133562 (2021.01); G02F 1/133638 (2021.01); G02F 2413/01 (2013.01); G02F 2413/05 (2013.01); G09G 2300/026 (2013.01); G09G 2340/0464 (2013.01); G09G 2354/00 (2013.01); G09G 2380/10 (2013.01);
Abstract

A small-sized information display apparatus capable of displaying, as virtual images, different pieces of video image information at different positions in a wide area of a windshield. An embodiment has a virtual image optical system in which a flat display forming video image information is arranged, and that includes a projected member for causing virtual images to be displayed at a plurality of positions ahead of a vehicle by reflecting a video image on the flat display, thereby forming the virtual images at the plurality of positions so as to correspond to a viewpoint position of a driver. The virtual image optical system is arranged so that video image light fluxes for establishing the respective virtual images are separated from and independent of one another between the flat display and a concave mirror, and is configured by arranging different optical elements so as to correspond to the respective light fluxes.

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