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:
May. 26, 2020
Filed:
Jun. 22, 2017
Koito Manufacturing Co., Ltd., Tokyo, JP;
Takeshi Toda, Shizuoka, JP;
Kentarou Murakami, Shizuoka, JP;
Masayasu Ito, Shizuoka, JP;
Takao Muramatsu, Shizuoka, JP;
Hidetada Tanaka, Shizuoka, JP;
Satoshi Yamamura, Shizuoka, JP;
KOITO MANUFACTURING CO., LTD., Minato-Ku, Tokyo, JP;
Abstract
A blade receives light emitted from a light source and repeats a predetermined periodic motion to scan the front of a vehicle with reflected light of the emitted light. A position detector generates a position detection signal Sindicating a timing at which a predetermined reference point of the blade passes a predetermined position. Based on the position detection signal S, a period calculator calculates a period Tp of the periodic motion of the blade. A light intensity calculator receives light-distribution-pattern information Sto be formed in front of the vehicle and calculates light intensity to be generated by the light source at each time based on the position detection signal Sand the period Tp. A driver turns on a semiconductor light source so as to obtain the light intensity calculated by the light intensity calculator at each time.