A first light emitting unit includes M (M≥2) first light emitting elements provided in series. A second light emitting unit including N (N<M) second light emitting elements and a switching transistor are provided on a path parallel to the first light emitting unit. A constant-current driver is connected in series to both the first light emitting unit and the second light emitting unit, and generates a drive current. A drive circuit includes a capacitor provided between a gate and a drain of the switching transistor, and causes the gate of the switching transistor to generate a drive signal according to a switching signal.

An array-type light-emitting device includes multiple pixel circuits electrically coupled in parallel and spatially arranged in a matrix. A power supply circuit supplies electric power to the array-type light-emitting device. A DC/DC converter has an output coupled to a power supply terminal of the array-type light-emitting device via a power supply line. A power supply control circuit sets a target value that corresponds to a light distribution pattern, and controls the DC/DC converter such that the control target voltage approaches the target value.

Embodiments pertain to a method for controlling the operation of lighting, the method comprising: actively illuminating a scene with pulsed light generated by at least one pulsed light source of a platform for generating reflections from the scene; gating in timed coordination with the active illumination of the scene, at least one of a plurality of pixel elements of at least one image sensor of the platform; receiving, at least some of the reflections from the scene; generating, reflection-based image data; and controlling, based on the reflection-based image data, the operation of platform lighting comprising a plurality of light sources that are configured in a matrix arrangement for simultaneously subjecting at least one first scene region and at least one second scene region with different illumination power.

Off-road lighting control systems and methods are disclosed herein. An example vehicle can include off-road lighting mounted to an outside of the vehicle, as well as a controller including a processor and memory. The processor executes instructions in memory to determine a category of a road that the vehicle is located on using location-based information and automatically control the off-road lighting based on the category of the road.

An apparatus includes an illumination source including a first illumination source segment and a second illumination source segment. The apparatus also includes driver circuitry coupled to the illumination source, the driver circuitry including a first driver coupled to the first illumination source segment, the first driver configured to produce a first drive signal to instruct the first illumination source segment to produce a first light having a first illumination intensity. The driver circuitry also includes a second driver coupled to the second illumination source segment, the second driver configured to produce a second drive signal to instruct the second illumination source segment to produce a second light having a second illumination intensity.

An imaging system is provided herein. An image sensor is configured to acquire one or more images of a scene external and forward of a controlled vehicle and to generate image data corresponding to the acquired images. A controller is communicatively connected to the image sensor and is configured to receive and analyze the image data. The controller detects an object of interest in the image data and generates an ON signal or an OFF signal based on the detection of the object of interest in the image data, or lack thereof. A high beam control of the vehicle is turned ON based on the ON signal or turned OFF based on the OFF signal. The controller modifies a future response time at which the OFF signal is generated based on an external overriding of the ON signal or the OFF signal.

Control device for controlling an auxiliary light mounted to a vehicle having a first manually operable user input device (not shown) operable to cause generating a first signal and a second signal. The control device includes: at least two inputs including a first input configured to receive the first signal, and a second input configured to receive the second signal; an output configured to operably couple to the light to provide a control signal to cause the driving light to illuminate; and a logic circuit coupling each input to the output. The logic circuit includes a nonmechanical electronic switch operable to generate the control signal and provide the control signal to the output. The logic circuit operates the switch to generate the control signal responsive to the first input receiving the first signal, and the second input receiving the second signal.

A vehicular light switch can change the mode of an exterior-illuminating light by rotating to different positions including an auto setting and a SMALL setting. If the position of the vehicular light switch is rotated to the SMALL setting, a momentary mechanism returns the position to the auto setting. If extravehicular brightness is less than a prescribed value and the position is rotated to the SMALL setting whilst the vehicle is stationary, a first light controller turns off a low-beam light, and turns on the low-beam light if the vehicle runs afterwards. If extravehicular brightness is less than a prescribed value and the position is rotated to the SMALL setting while the vehicle is running, a second light controller keeps the low-beam light turned on.

A lighting system for a vehicle having a housing, a plurality of elements generating an intensity of light and a controller. The controller selectively changing the intensity of at least one of the plurality of elements based on a sensed condition.

A lighting unit includes a power supply that provides a maximum voltage and multiple LED lighting circuits. Each of the LED lighting circuits includes an LED string, multiple switches, a switching sequencer and a switch controller. The LED string includes multiple series-connected emitters having a total forward voltage that exceeds the maximum voltage of the power supply. Each of the switches is coupled in parallel with a respective LED of the LED string. The switching sequencer provides a sequence of switching patterns such that a total forward voltage of simultaneously active LEDs in each switching pattern does not exceed the maximum voltage of the power supply. The switch controller actuates switches according to each of the switching patterns in the sequence. The LED string of each of the plurality of LED lighting circuits is arranged in a two-dimensional array.