Provided is a light source drive device including: a current supply device; and a light source device including a light emitting element that emits light by receiving drive current supplied from the current supply device, a temperature sensor that performs temperature detection at a position closer to the light emitting element than the current supply device, and a signal generation unit that outputs a control signal for controlling the drive current depending on a detected value of the temperature sensor to the current supply device. The signal generation unit generates a control signal for reducing the drive current depending on a temperature when the temperature detected by the temperature sensor is equal to or higher than a predetermined temperature.

A vehicle includes: adaptive headlights, each configured to produce a continuous beam sweeping effect, processor(s) configured to: (a) detect failure of an adaptive headlight; (b) control the functional adaptive headlight to produce the continuous beam sweeping effect based on (a). The functional adaptive headlight achieves the continuous beam sweeping effect by (1) continuously cycling through a plurality of beam profiles, or (2) continuously rotating the headlights via motor(s).

A lighting circuit includes a control unit that selects one of an extinguishing mode and a plurality of lighting modes based on a first control signal and a second control signal, and a drive unit. The control unit is configured to i) select the extinguishing mode when at least one of the first control signal and the second control signal is a non-pulse signal, and ii) select one of the plurality of lighting modes based on the combination of the duty ratio of the first control signal and the duty ratio of the second control signal, when both the first control signal and the second control signal are pulse signals.

An abnormality detection device includes a load connected to a load connection terminal; a first switching element, having one end connected to the load connection terminal, that switches between connection and disconnection of a power supply to the load; a control unit that switches between an on state and an off state of the first switching element; a detection unit that outputs a signal based on comparison between a voltage of the load connection terminal and a predetermined reference voltage; an acquisition unit that acquires the signal from the detection unit; a determination unit that determines that the load is in an abnormal state when the acquisition unit acquires an abnormality detection signal, which is a signal of a predetermined level, continuously for more than a predetermined first determination time period after the control unit switches the first switching element from the on state to the off state.

A system mounted on a vehicle for detecting an obstruction on a surface of a window of the vehicle, a primary camera is mounted inside the vehicle behind the window. The primary camera is configured to acquire images of the environment through the window. A secondary camera is focused on an external surface of the window, and operates to image the obstruction. A portion of the window, i.e. window region is subtended respectively by the field of view of the primary camera and the field of view of the secondary camera. A processor processes respective sequences of image data from both the primary camera and the secondary camera.

A driver assistance system for a vehicle includes a camera that, when disposed at the vehicle, views through a windshield of the vehicle. The camera is disposed at a windshield electronics module attached at the windshield of the vehicle. The camera captures image data of a scene forward of the vehicle. A control includes an image processor that processes captured image data. The control, responsive to the image processor processing captured image data, detects an object of interest external to the vehicle. The control utilizes a blockage detection algorithm and, responsive to the image processor processing captured image data, is operable to detect at least a partial blocking condition at the camera.

Provided is a vehicle lamp including an optical unit including an optical element and a solenoid that drives the optical element; and a driving circuit configured to receive a voltage from a DC power supply and apply a driving voltage to the solenoid. The driving circuit includes a signal generating circuit that generates a notification signal indicating whether or not the solenoid is open-circuited. The signal generating circuit generates a first signal as the notification signal when the solenoid is normal. The notification signal is set as a second signal that is different from the first signal when open-circuit of the solenoid is detected.

A lighting device control system (1, 101, 201) includes an instruction signal generation unit (3) that generates an instruction signal for the control of the states of a lighting device (13, 15) mounted to a vehicle, and a control unit (5, 7) that controls the state of the lighting device according to the instruction signal. The instruction signal generation unit generates a plurality of instruction signals. The control unit controls the state of the lighting device according to the states of the plurality instruction signals.

A vehicular vision system includes an image processor and a camera that views through the windshield of the vehicle. The camera captures image data as the vehicle travels along a road, and the image processor processes image data captured by the camera. The vehicular vision system, responsive at least in part to processing by the image processor of image data captured by the camera, determines when the vehicle is at a construction zone. Responsive to determining that the vehicle is at the construction zone, the vehicular vision system adjusts a vehicular driver assistance system of the vehicle. The vehicular vision system determines that the vehicle exits the construction zone based at least in part on processing by the image processor of image data captured by the camera.

A vehicle lamp includes: a semiconductor laser element configured so as to emit laser light; a condensing lens configured so as to condense laser light emitted from the semiconductor laser element; a first phosphor configured such that the wavelength of at least some of the laser light condensed with the condensing lens is converted, whereby white light is generated; a reflector configured so as to reflect the white light emitted from the first phosphor; and a second phosphor disposed between the first phosphor and the reflector, and configured so as to convert the wavelength of at least some of the light emitted from the first phosphor.