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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.:

US 10197233 B1

PDFFull Text
Date of Patent:
Feb. 05, 2019

Filed:

Dec. 26, 2014

Illumination device

Applicant:

Maxell, Ltd., Kyoto, JP;

Inventors:

Chohei Ono, Osaka, JP;

Kazuomi Kaneko, Ibaraki, JP;

Nobuyuki Kaku, Osaka, JP;

Assignee:

Maxell, Ltd., Kyoto, JP;

Attorney:

Mattingly & Malur, PC

Primary Examiner:

Sultan Chowdhury

Int. Cl.
CPC ...
F21S 8/06 (2006.01); F21S 8/04 (2006.01); F21V 19/00 (2006.01); G03B 21/14 (2006.01); G03B 21/20 (2006.01); G03B 21/00 (2006.01); G03B 21/10 (2006.01); G03B 21/16 (2006.01); F21V 33/00 (2006.01); G03B 21/28 (2006.01); F21V 23/04 (2006.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21S 8/06 (2013.01); F21S 8/04 (2013.01); F21V 19/001 (2013.01); F21V 33/0052 (2013.01); G03B 21/006 (2013.01); G03B 21/10 (2013.01); G03B 21/145 (2013.01); G03B 21/16 (2013.01); G03B 21/2033 (2013.01); F21V 23/04 (2013.01); F21Y 2115/10 (2016.08); G03B 21/008 (2013.01); G03B 21/28 (2013.01);
Abstract

An illumination device emits illumination light and has a light source arranged inside a housing generating illumination light; a diffusing panel attached to the housing; and a projector inside a space formed by the housing and a part of the diffusing panel and projecting an image onto a projection surface. An optical unit is arranged so that an incident direction of a light flux incident from a display element provided in the projector onto a projection optical system of the projector is substantially parallel to a horizontal plane or in a direction closer to a direction parallel to the horizontal plane than a vertical direction, or in so that an optical axis of the projection optical system on which the light flux from the display element is substantially parallel to the horizontal plane or in a direction closer to a direction parallel to the horizontal plane than the vertical direction.

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