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:
Sep. 11, 2012
Filed:
Sep. 16, 2009
Kazuo Horiuchi, Kanagawa-ken, JP;
Naotada Okada, Kanagawa-ken, JP;
Haruhiko Okumura, Kanagawa-ken, JP;
Takashi Sasaki, Kanagawa-ken, JP;
Aira Hotta, Kanagawa-ken, JP;
Kazuo Horiuchi, Kanagawa-ken, JP;
Naotada Okada, Kanagawa-ken, JP;
Haruhiko Okumura, Kanagawa-ken, JP;
Takashi Sasaki, Kanagawa-ken, JP;
Aira Hotta, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A display device is provided that includes: a projection unit emitting a light flux including image information; and a divergence angle controlling unit controlling a divergence angle of the light flux emitted from the projection unit to not more than a prescribed angle. The divergence angle controlling unit includes a transmission unit transmitting the light flux emitted from the projection unit and a light shielding unit shielding part of the light flux, and the part of the light flux is shielded by the light shielding unit so that the divergence angle of the light flux is controlled to not more than a prescribed angle.