US 11,951,898 B2
Vehicle lighting device and vehicle lamp
Hiraku Mori, Ehime (JP); and Daisuke Kosugi, Ehime (JP)
Assigned to Toshiba Lighting & Technology Corporation, Kanagawa (JP)
Filed by Toshiba Lighting & Technology Corporation, Kanagawa (JP)
Filed on Aug. 16, 2022, as Appl. No. 17/889,360.
Claims priority of application No. 2022-028031 (JP), filed on Feb. 25, 2022.
Prior Publication US 2023/0271546 A1, Aug. 31, 2023
Int. Cl. B60Q 1/00 (2006.01); F21S 43/14 (2018.01); F21S 43/19 (2018.01); F21W 107/10 (2018.01); F21Y 115/10 (2016.01); H05B 45/345 (2020.01); H05B 47/105 (2020.01)
CPC B60Q 1/0088 (2013.01) [F21S 43/14 (2018.01); F21S 43/19 (2018.01); H05B 45/345 (2020.01); H05B 47/105 (2020.01); F21W 2107/10 (2018.01); F21Y 2115/10 (2016.08)] 4 Claims
OG exemplary drawing
 
1. A vehicle lighting device, comprising:
a socket;
a substrate provided on one end side of the socket;
a first circuit provided on the substrate; and
a second circuit provided on the substrate,
wherein the first circuit has:
a plurality of first light emitting elements; and
a control element electrically connected to the plurality of first light emitting elements and controlling a value of a current flowing through the plurality of first light emitting elements,
wherein the second circuit has:
second light emitting elements the number of which is smaller than the number of the plurality of first light emitting elements; and
a resistor connected in series to the second light emitting elements,
wherein the control element detects an input voltage and changes the number of the first light emitting elements through which the current flows according to the input voltage detected.