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:
Mar. 14, 2017
Filed:
Feb. 02, 2016
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Masashi Okamoto, Hyogo, JP;
Hidekazu Hatanaka, Tokyo, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A vehicle driving assistance apparatus includes a coherent light source, a road surface projection optical system, a road surface wet information retention section, and a control circuit. The road surface projection optical system scans a light source beam emitted from the coherent light source to output a projection beam, and thereby project the light pattern on the road surface around the own vehicle, the light source beam being light. The control circuit is configured to stop the output of the projection beam during a period in which the road surface wet information retention section retains information indicating that the road surface around the own vehicle is wet. The projection beam enters the road surface around the own vehicle at a shallow angle, and projects the light pattern toward a road surface near a boundary of a traveling lane where the own vehicle is traveling.