A lighting circuit is configured to drive a light source including a plurality of light emitting elements connected in series. The lighting circuit includes a plurality of bypass switches respectively connected in parallel to the light emitting elements, a switching converter, and a converter controller configured to (i) stabilize a lamp current generated by the switching converter to a first target amount in a lighting-on state where at least one of the plurality of light emitting elements is turned on, and to (ii) stabilize the lamp current to a second target amount smaller than the first target amount in a complete lighting-off state where all of the plurality of light emitting elements are turned off.

A front-lighting system for a vehicle has: a first light source, a second light source, a first primary optics, a second primary optics, a transparent shutter, and a secondary optics. The first primary optics receives light from the first light source and projects it onto the transparent shutter and the secondary optics. The second primary optics receives light from the second light source and projects it onto the transparent shutter. The transparent shutter receives light from the first primary optics and prevents a lower part of it from entering the secondary optics, receives light from the second primary optics and projects it onto the secondary optics, and has a light out-coupling surface and micro-optical structures on a bordering surface. The secondary optics receives light from the first primary optics and the transparent shutter, and projects it onto a road in front of the vehicle.

The present invention provides a light source module for a vehicle comprising: a plate-like heat sink; substrates provided on both sides of the heat sink, respectively; light emitting devices provided on the substrates, respectively; a hole for transmitting light emitted from the light emitting devices; and a pair of bases coupled to the outside of the substrates, wherein the light emitting device includes a first light emitting device and a second light emitting device which are arranged diagonally, and a blocking member is disposed at a lower end of the second light emitting device. As such, it is possible to increase the heat dissipation efficiency by increasing the contact between the heat sink and the substrates.

The present invention provides a light source module for a vehicle comprising: a plate-like heat sink; substrates provided on both sides of the heat sink, respectively; light emitting devices provided on the substrates, respectively; a hole for transmitting light emitted from the light emitting devices; and a pair of bases coupled to the outside of the substrates, wherein the light emitting device includes a first light emitting device and a second light emitting device which are arranged diagonally, and a blocking member is disposed at a lower end of the second light emitting device. As such, it is possible to increase the heat dissipation efficiency by increasing the contact between the heat sink and the substrates.

A vehicular headlamp comprising: a front lens body extending in a predetermined direction; a plurality of optical systems disposed along the predetermined direction behind the front lens body; and a control means, wherein the plurality of optical systems each includes: a rear lens unit disposed behind the front lens body; and a light source which is disposed behind the rear lens unit and emits light which is irradiated forward permeating the rear lens unit and the front lens body in that order to form a light distribution pattern for a headlamp, and the control means individually controls lighting states of the light sources in each of the plurality of optical systems.

A vehicular headlamp comprising: a front lens body extending in a predetermined direction; a plurality of optical systems disposed along the predetermined direction behind the front lens body; and a control means, wherein the plurality of optical systems each includes: a rear lens unit disposed behind the front lens body; and a light source which is disposed behind the rear lens unit and emits light which is irradiated forward permeating the rear lens unit and the front lens body in that order to form a light distribution pattern for a headlamp, and the control means individually controls lighting states of the light sources in each of the plurality of optical systems.

A light source device includes: a light-shielding member defining an opening; a light-guide member located in the opening in a top view and including two or more divided lens portions; and a plurality of light-emitting parts disposed such that each of the plurality of light-emitting parts corresponds to a respective one of the lens portions, each of the plurality of light-emitting parts being configured to be individually turned on. Each of the light-emitting parts has an upper surface serving as a light-emitting surface. The light-shielding member covers a portion of the light-emitting surface of at least one of the plurality of light-emitting parts in the top view. Irradiation areas corresponding to the light-emitting parts are at least partially different from each other.

A light source device includes: a light-shielding member defining an opening; a light-guide member located in the opening in a top view and including two or more divided lens portions; and a plurality of light-emitting parts disposed such that each of the plurality of light-emitting parts corresponds to a respective one of the lens portions, each of the plurality of light-emitting parts being configured to be individually turned on. Each of the light-emitting parts has an upper surface serving as a light-emitting surface. The light-shielding member covers a portion of the light-emitting surface of at least one of the plurality of light-emitting parts in the top view. Irradiation areas corresponding to the light-emitting parts are at least partially different from each other.

A luminous device for a motor vehicle, said device including a pixelized light source and an optical system that is arranged to project a pixelized light beam emitted by the pixelized light source, the optical system comprising a first mirror arranged to collect and reflect rays of the pixelized light beam emitted by the pixelized light source, a second mirror arranged to reflect the rays reflected by the first mirror, and a third mirror arranged to receive the rays reflected by the second mirror and to reflect these received rays so as to correct field aberrations. The invention enables improved projection of a pixelized light beam by a luminous motor-vehicle device.

A luminous device for a motor vehicle, said device including a pixelized light source and an optical system that is arranged to project a pixelized light beam emitted by the pixelized light source, the optical system comprising a first mirror arranged to collect and reflect rays of the pixelized light beam emitted by the pixelized light source, a second mirror arranged to reflect the rays reflected by the first mirror, and a third mirror arranged to receive the rays reflected by the second mirror and to reflect these received rays so as to correct field aberrations. The invention enables improved projection of a pixelized light beam by a luminous motor-vehicle device.