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:
Aug. 25, 2020
Filed:
Jan. 23, 2019
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
A lighting device includes a reflector including a unit light source region, a light reflecting portion, and a light transmissive portion. The unit light source region includes a light source overlapping region and a light source peripheral region. The light reflecting portion is included in the unit light source region and has a higher area ratio in the light source overlapping region than in the light source peripheral region. The light transmissive portion is included in the unit light source region and has a higher area ratio in the light source peripheral region than in the light source overlapping region. The unit light source region includes unit regions arranged to cover a plane surface of the unit light source region and the light reflecting portion and the light transmissive portion are allocated to the unit regions to have a non-point-symmetric distribution in the unit light source region.