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:
Jul. 09, 2019
Filed:
Nov. 18, 2015
Applicant:
Maxell, Ltd.;
Inventors:
Assignee:
Maxell, Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/02 (2006.01); G03B 21/20 (2006.01); F21V 33/00 (2006.01); G02B 5/20 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2046 (2013.01); F21V 33/00 (2013.01); G02B 5/20 (2013.01); H04N 9/3141 (2013.01); G02B 5/02 (2013.01);
Abstract
Provided is a video-image-projecting-function-equipping lighting device having favorable usability for a user. The lighting device has: a lighting unit for emitting illumination light; a projection type video image display unit for projecting a video image; and also a structure of suspending the lighting device from a ceiling surface so as to make its horizontality adjustable, and the projection type video image display unit displays an image for guiding the adjustment of the horizontality.