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:
Oct. 20, 2015

Filed:

Nov. 15, 2012
Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Katsuyuki Akutsu, Kanagawa, JP;

Nobuaki Kuribara, Saitama, JP;

Teppei Imamura, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02B 27/14 (2006.01); G02B 27/01 (2006.01); G02B 5/09 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0055 (2013.01); G02B 5/09 (2013.01); G02B 27/0172 (2013.01); G02B 27/14 (2013.01); G02B 6/0015 (2013.01); G02B 6/0035 (2013.01); G02B 2027/0174 (2013.01);
Abstract

An image display device includes an image generating device, a light guide unit, and a light beam expanding device. The light guide unit includes a light guide plate, a first deflector, and a second deflector. The light beam expanding device expands a light beam incident from the image generating device along the Z direction and outputs the light beam to the light guide unit when the incident direction of light incident on the light guide plate is defined as the X direction and the propagation direction of light in the light guide plate is defined as the Y direction. The light beam expanding device is composed of a first reflective mirror on which light from the image generating device is incident and a second reflective mirror on which light from the first reflective mirror is incident and that outputs light to the light guide unit.


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