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:
Oct. 09, 2018
Filed:
May. 16, 2016
Omron Corporation, Kyoto-shi, Kyoto, JP;
OMRON Corporation, Kyoto-shi, JP;
Abstract
A presentation device has a cylindrical display panel provided with a first pattern on an outer circumferential surface thereof and supported to be rotatable in a circumferential direction, a cylindrical light guide plate arranged along an outer circumference of the display panel and supported coaxially with the display panel such that the first pattern is visible from an outer circumferential side, and a light source opposing a portion of one edge surface of the light guide plate and configured to emit visible light. The light guide plate has prisms that are formed in a diffusing surface on an inner circumferential side opposing the outer circumference surface of the display panel, reflect visible light from the light source that enters the light guide plate from the portion of the edge surface toward an exit surface on the outer circumferential side opposing the diffusing surface and arranged along a second pattern.