Invention Grant
- Patent Title: Vehicle lighting device and vehicle lamp
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Application No.: US15417374Application Date: 2017-01-27
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Publication No.: US09961748B2Publication Date: 2018-05-01
- Inventor: Daisuke Kosugi , Atsushi Heike
- Applicant: Toshiba Lighting & Technology Corporation
- Applicant Address: JP Yokosuka-shi, Kanagawa-ken
- Assignee: Toshiba Lighting & Technology Corporation
- Current Assignee: Toshiba Lighting & Technology Corporation
- Current Assignee Address: JP Yokosuka-shi, Kanagawa-ken
- Agency: Banner & Witcoff, Ltd.
- Priority: JP2016-017011 20160201; JP2016-088796 20160427
- Main IPC: H05B37/02
- IPC: H05B37/02

Abstract:
According to one embodiment, a vehicle lighting device includes a first circuit portion that has at least one light emitting element and a first resistor connected in series to the light emitting element; a second circuit portion that is connected in parallel to the first circuit portion and has at least a control portion; and a third circuit portion that is connected in series to the first circuit portion and the second circuit portion, and has at least one light emitting element.The control portion measures an input voltage and causes a current to flow through the third circuit portion in a case where the measured input voltage is a predetermined value.
Public/Granted literature
- US20170223805A1 VEHICLE LIGHTING DEVICE AND VEHICLE LAMP Public/Granted day:2017-08-03
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