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:
Feb. 10, 2015
Filed:
Apr. 26, 2011
Kentarou Imamura, Osaka, JP;
Shigeto Yoshida, Osaka, JP;
Takafumi Shimatani, Osaka, JP;
Hisashi Watanabe, Osaka, JP;
Kentarou Imamura, Osaka, JP;
Shigeto Yoshida, Osaka, JP;
Takafumi Shimatani, Osaka, JP;
Hisashi Watanabe, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An optical system according to an embodiment of the present invention includes a reflective imaging element having a first principal face which is struck by light emitted from a display panel, a second principal face parallel to the first principal face, and two mutually-orthogonal specular elements being perpendicular to the first principal face, and causes an image displayed on a display surface of the display panel to form an image at a position of planar symmetry with respect to the reflective imaging element as a plane of symmetry. A transparent substrate which is disposed on at least either the first principal face side or the second principal face side of the reflective imaging element is further included, and first light striking the transparent substrate is linearly polarized light, with a large proportion of p-polarized light.