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. 13, 2016
Filed:
Mar. 11, 2014
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Mitsuaki Kato, Kanagawa-ken, JP;
Hiroshi Ohno, Kanagawa-ken, JP;
Katsumi Hisano, Chiba-ken, JP;
Masataka Shiratsuchi, Kanagawa-ken, JP;
Tomonao Takamatsu, Kanagawa-ken, JP;
Tomoyuki Suzuki, Kanagawa-ken, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Abstract
In one embodiment, a light emitting device includes: a light source which emits light; a light guide portion which has an emission surface which emits light and a back surface which opposes to the emission surface, and which has at the back surface a reflecting portion which the light emitted from the light source enters and which reflects the entering light toward the emission surface; a heat transfer portion which opposes to the back surface of the light guide portion and is provided with an interval which is a wavelength of the light or more being spaced from the back surface; and a support portion which is provided between the reflecting portion and the heat transfer portion, and which keeps the interval between the light guide portion and the heat transfer portion.