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. 20, 2015
Filed:
Dec. 05, 2014
Koito Manufacturing Co., Ltd., Tokyo, JP;
Shinji Ohta, Shizuoka, JP;
KOITO MANUFACTURING CO., LTD., Tokyo, JP;
Abstract
A vehicular lamp has a light-emitting portion connected in series to an input terminal to which a power supply voltage based on an on-board battery is configured to be applied, and having a plurality of light-emitting elements connected in series, a series connection circuit having a first current limiting resistor and a second current limiting resistor, which is inserted in series between the input terminal and the light-emitting portion, a resistor switching switch connected in parallel to one of the first current limiting resistor and the second current limiting resistor, bypass switches, each of which is connected in parallel to a required one of the light-emitting elements in the light-emitting portion, and a control circuit that turns off the resistor switching switch when at least one of the bypass switches is turned on.