Invention Grant
- Patent Title: Lighting device having an LED, thermistor and resistor connected in series with a heat conduction suppressor configured to suppress heat to the thermistor
-
Application No.: US16486263Application Date: 2018-02-15
-
Publication No.: US10677413B2Publication Date: 2020-06-09
- Inventor: Hiroki Shibata , Kunio Fujita , Masaya Fujiwara , Ryo Iwaki
- Applicant: KOITO MANUFACTURING CO., LTD.
- Applicant Address: JP Minato-ku, Tokyo
- Assignee: KOITO MANUFACTURING CO., LTD.
- Current Assignee: KOITO MANUFACTURING CO., LTD.
- Current Assignee Address: JP Minato-ku, Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1ba402f5
- International Application: PCT/JP2018/005182 WO 20180215
- International Announcement: WO2018/151192 WO 20180823
- Main IPC: F21S45/40
- IPC: F21S45/40 ; F21V29/10 ; F21Y115/10 ; F21S41/30
Abstract:
In a lighting device adapted to be mounted on a vehicle, a PTC (positive temperature coefficient) thermistor (535), a first fixed resistor (R1), and a first light emitting element (531) are connected in series with a voltage source. A heat conduction suppressor (7) is configured to suppress heat conduction from the first fixed resistor (R1) to the PTC thermistor (535).
Public/Granted literature
- US20190376662A1 LIGHTING DEVICE Public/Granted day:2019-12-12
Information query
