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. 04, 2024
Filed:
Aug. 11, 2020
Applicant:
Koito Manufacturing Co., Ltd., Tokyo, JP;
Inventor:
Yuichi Shibata, Shizuoka, JP;
Assignee:
KOITO MANUFACTURING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60Q 1/38 (2006.01);
U.S. Cl.
CPC ...
B60Q 1/38 (2013.01); B60Q 1/381 (2022.05); B60Q 2400/50 (2013.01);
Abstract
A vehicle drawing device draws a sign on a road surface with amber-colored light. When a luminance of the sign is assumed as a road surface drawing luminance, and a luminance in a surrounding environment of a driving vehicle is assumed as a background luminance, the amber-colored light is irradiated such that a luminance contrast calculated by the road surface drawing luminance and the background luminance is 0.2 or more.