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:
Dec. 11, 2018
Filed:
Jan. 08, 2018
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Abstract
A lighting device includes a light source and first and second reflection surfaces. The first reflection surface reflects source light from the light source, and projects first light on first and second regions on an illuminated surface. The second region is closer to the lighting device than the first region. The second reflection surface is tinted in a prescribed color, and reflects secondary and higher-order reflection light of the source light, and projects second light on the second region. An absolute value of a difference between correlated color temperatures of the first light projected on the first region and of mixed light of the first and second lights projected on the second region is smaller than an absolute value of a difference between correlated color temperatures of the first light projected on the first region and of the first light projected on the second region.