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. 13, 1990
Filed:
Sep. 08, 1988
Hiroki Shibata, Shizuoka, JP;
Kazuki Takahashi, Shizuoka, JP;
Keiichi Tajima, Shizuoka, JP;
Takashi Kurita, Shizuoka, JP;
Kiyoshi Wada, Shizuoka, JP;
Kiyoshi Yamashita, Shizuoka, JP;
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
In a vehicle cornering lamp system, a control signal having a pulse width corresponding to a steering angle is periodically produced, and the amount of position shift between the actual direction of illumination of the headlamps and the target direction of illumination determined from the steering angle is detected according to the control signal thus produced. An electric motor is driven to change the direction of illumination of the headlamps so that the amount of position shift becomes zero, that is, the direction of illumination of the headlamps is linearly changed with the electric motor while following the steering angle.