A variable light distribution light source includes an array-type light-emitting device. The array-type light-emitting device includes a power supply terminal and multiple pixel circuits electrically coupled and spatially arranged in a matrix. A power supply circuit includes a power supply unit that supplies electric power to the array-type light-emitting device. An output of a DC/DC converter is coupled to the power supply terminal VDD of the array-type light-emitting device via an output terminal. A voltage setting circuit generates a controllable correction voltage. A feedback circuit generates a feedback voltage based on the correction voltage and the control target voltage that corresponds to the output voltage of the DC/DC converter, and supplies the feedback voltage to a feedback pin of a converter controller.

A variable light distribution light source includes an array-type light-emitting device. The array-type light-emitting device includes a power supply terminal and multiple pixel circuits electrically coupled and spatially arranged in a matrix. A power supply circuit includes a power supply unit that supplies electric power to the array-type light-emitting device. An output of a DC/DC converter is coupled to the power supply terminal VDD of the array-type light-emitting device via an output terminal. A voltage setting circuit generates a controllable correction voltage. A feedback circuit generates a feedback voltage based on the correction voltage and the control target voltage that corresponds to the output voltage of the DC/DC converter, and supplies the feedback voltage to a feedback pin of a converter controller.

A vehicle headlamp includes: a first light source unit that forms at least a high-beam light distribution pattern; a second light source unit that forms an additional light distribution pattern and irradiates light with a luminous intensity higher than that of the first light source unit; a posture switching mechanism that switches between a first posture in which an optical axis of the second light source unit is parallel to an optical axis of the first light source unit and a second posture in which the optical axis of the second light source unit is deviated in the horizontal direction by a predetermined angle from the optical axis of the first light source unit; and a controller that controls an ON/OFF state of the second light source unit and an operation state of the posture switching mechanism according to a vehicle speed acquired from a vehicle.

A vehicle headlamp includes: a first light source unit that forms at least a high-beam light distribution pattern; a second light source unit that forms an additional light distribution pattern and irradiates light with a luminous intensity higher than that of the first light source unit; a posture switching mechanism that switches between a first posture in which an optical axis of the second light source unit is parallel to an optical axis of the first light source unit and a second posture in which the optical axis of the second light source unit is deviated in the horizontal direction by a predetermined angle from the optical axis of the first light source unit; and a controller that controls an ON/OFF state of the second light source unit and an operation state of the posture switching mechanism according to a vehicle speed acquired from a vehicle.

Devices, systems, and methods for management of electrical resources for electric vehicles. A method may include receiving, by a vehicle, sensor data indicative of a first luminosity of a location, and determining that the first luminosity of the location exceeds a luminosity threshold. The method may include determining, based on the first luminosity exceeding the luminosity threshold, a second luminosity to apply to lights of the vehicle while the vehicle is at the location, the second luminosity greater than zero. The method may include applying the second luminosity to the lights while the vehicle is at the location.

A vehicle headlamp (1) includes a lamp fitting (10), and a control unit (CO) configured to, when a signal indicating detection of a preceding vehicle (80) is input, control the lamp fitting (10) such that a total luminous flux amount of light emitted to a first region (211) and a second region (212), and widths (W211 and W212) in the first region (211) and the second region (212) change according to a position of the preceding vehicle (80) with respect to a vehicle (100), in which the first region (211) overlaps a whole of a visual recognition unit of the preceding vehicle (80), and edges (212R and 212L) of the second region (212) on both sides in the left-right direction are located on a preceding vehicle (80) side with respect to edges (211R and 211L) of the first region (211) on both sides in the left-right direction.

A vehicle headlamp (1) includes a lamp fitting (10), and a control unit (CO) configured to, when a signal indicating detection of a preceding vehicle (80) is input, control the lamp fitting (10) such that a total luminous flux amount of light emitted to a first region (211) and a second region (212), and widths (W211 and W212) in the first region (211) and the second region (212) change according to a position of the preceding vehicle (80) with respect to a vehicle (100), in which the first region (211) overlaps a whole of a visual recognition unit of the preceding vehicle (80), and edges (212R and 212L) of the second region (212) on both sides in the left-right direction are located on a preceding vehicle (80) side with respect to edges (211R and 211L) of the first region (211) on both sides in the left-right direction.

A method for reporting dazzling caused by a headlight system of a dazzling oncoming vehicle by means of a message produced by the dazzled vehicle that dazzling has been detected, wherein the message contains information relating to a position of the dazzled vehicle at the time of the detected dazzling. The method, also can proceed from the message, for determining an incorrect position of the headlight system of the dazzling vehicle by a comparison between a first intersection point between the trajectory of the oncoming dazzled vehicle and a light field produced by the headlight system of the dazzling vehicle, and a second intersection point between the trajectory of the oncoming dazzled vehicle and a model, stored in the vehicle system, of the light field generated by the headlight system of the dazzling vehicle.

A road surface condition viewing apparatus includes an illuminator provided on front side of a vehicle. The illuminator is configured to apply dot-shaped pieces of projection light to a road surface in a vehicle traveling direction. The dot-shaped pieces of projection light are arranged at predetermined intervals and visually recognizable by a driver who drives the vehicle.

The optical unit includes a light source, an electromagnetic wave generator, a first reflector configured to reflect emitted light emitted from the light source and electromagnetic waves emitted by the electromagnetic wave generator in a first reflection region whose reflection direction is changed periodically, and a second reflector configured to reflect first reflected light reflected by the first reflector and first electromagnetic waves again in a second reflection region whose reflection direction is changed periodically. The first reflector is configured to scan the second reflection region with the first reflected light and the first electromagnetic waves. The second reflector is configured to form a light distribution pattern by performing scanning with second reflected light, and to detect a surrounding object by performing scanning with second electromagnetic waves.