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:
Jun. 27, 2017
Filed:
Jul. 23, 2013
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Ichiro Umekawa, Osaka, JP;
Hirofumi Oosawa, Osaka, JP;
Takeshi Ishida, Osaka, JP;
Ryuzo Yuki, Osaka, JP;
Masaki Kageyama, Osaka, JP;
Shugo Yagi, Osaka, JP;
Sharp Kabushiki Kaisha, Sakai, JP;
Abstract
An illumination device () is provided with the following: light sources (); a light-guide member (()) that includes a light entry region (Is) and a light exit region (Os) which emits planar light; light entry portions () that are formed in the light entry region (Is) and that oppose the light sources (); and bright line suppression portions () that are formed in the areas between the light entry portions () at the front side of the light entry region (Is), and that include bright line suppression prisms () which have a shape that changes the angle of the light emitted in a direction spreading out from the light sources () to a direction closer to the optical axes.