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.

Date of Patent:
May. 18, 2021

Filed:

Mar. 25, 2019
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Koji Taniguchi, Fukuoka, JP;

Hiroaki Okayama, Nara, JP;

Satoshi Kuzuhara, Osaka, JP;

Yusuke Nihei, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); G03B 21/28 (2006.01); G02F 1/1335 (2006.01); G06F 9/30 (2018.01); H04N 9/77 (2006.01); G02B 27/01 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G03B 21/142 (2013.01); G02B 27/0101 (2013.01); G02B 27/0179 (2013.01); G02F 1/133602 (2013.01); G03B 21/145 (2013.01); G03B 21/28 (2013.01); G06F 9/3004 (2013.01); H04N 9/77 (2013.01); G02B 2027/0185 (2013.01);
Abstract

A display system includes an image producing unit, a projection unit and an adjustment unit. The image producing unit has a display surface, and is configured to produce an image on the display surface. The projection unit is configured to project a virtual image to a target space with an output light of the image producing unit. The virtual image corresponds to the image produced by the image producing unit. The display system is configured to change a visual distance between an eye-box and the virtual image. The adjustment unit is configured to adjust brightness of the virtual image according to the visual distance.


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