Patent ID: 11906123
Assignee: KOITO MANUFACTURING CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  B  H | IPC F

Claim 6:
7. A light source module for a vehicle structured to be switchable between a high beam and a low beam, the light source module comprising:
a first light source arranged such that an output light of the first light source is irradiated to a low-beam region by a first optical system;
a second light source arranged such that an output light of the second light source is irradiated to a high-beam region by a second optical system; and, a lighting circuit structured to supply a driving current to the first light source in response to any one from among a turn-on instruction for the high beam and a turn-on instruction for the low beam, and to supply the driving current to the second light source in response to the turn-on instruction for the high beam;
a third light source arranged such that an output light of the third light source is irradiated to the low-beam region by the first optical system,
wherein the lighting circuit is structured to supply the driving current to the third light source in response to a turn-on instruction for the low beam, and
wherein the lighting circuit comprises:
a first switch structured to turn on in response to a turn-on instruction for the low beam;
a second switch structured to turn on in response to a turn-on instruction for the high beam; and
a driving circuit structured to generate the driving current,
wherein the first light source, the third light source, and the first switch are coupled in series,
and wherein the second light source and the second switch are coupled in parallel with the third light source and the first switch.