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. 08, 2019
Filed:
Sep. 12, 2018
Toyoda Gosei Co., Ltd., Kiyosu-shi, JP;
Renge Asakawa, Kiyosu, JP;
Yoshiharu Tanaka, Kiyosu, JP;
Hirotaka Fukui, Kiyosu, JP;
Yuki Kuramitsu, Kiyosu, JP;
Taro Isogai, Kiyosu, JP;
TOYODA GOSEI CO., LTD., Kiyosu-Shi, Aichi-Ken, JP;
Abstract
An illumination device includes: an elongated light guide; a first light source; a second light source; and a controller. A first increase beginning time point at which the brightness of the first light source begins to increase from zero is prior to a second increase beginning time point at which the brightness of the second light source begins to increase from zero. A first increase finish time point at which the brightness of the first light source finishes increasing to the first set brightness is simultaneous with or prior to a second increase finish time point at which the brightness of the second light source finishes increasing to the second set brightness. A time from the first increase beginning time point to the second increase finish time point is not more than 0.2 seconds.