A light device for a motor vehicle is provided that contains a rod-like light guide (1) having a longitudinal axis (15) connecting two ends of the light guide (1), and a primary light source (2) at least one of the ends of the light guide (1) for emitting primary light rays (10) in the light guide (1). The light guide (1) comprises a front output surface (4) for the output of the primary light rays (10) and at a rear side (12) of the light guide (1) unbinding elements (6) to direct the primary light rays (10) propagating along the light guide (1) to the output surface (4). The light device further comprises at least one reflector unit (7) that contains a secondary light source (8) for emitting secondary light rays (11) and a reflector (9) adapted to reflect and direct the secondary light rays (11) in the form of a light stream (14) to the light guide (1), wherein in the lateral cross-section the light stream (14) has a shape of a band (13) having a longitudinal axis (3) being substantially parallel to the longitudinal axis (15) of the light guide (1), and the rear side (12) of the light guide (1) comprises a binding area (5) including binding surfaces (5 a) configured to bind the secondary light rays (11) to the light guide (1).

One example includes a communication system. The system includes a data transmitter configured to generate a digital communication signal and a data receiver configured to receive the digital communication signal. The system also includes a pulse-width distortion (PWD) correction circuit arranged between the data transmitter and the data receiver and being configured to adjust at least one timing parameter associated with the communication signal.

There are provided a lighting control device, a vehicular lamp, and a lighting control method which can prevent visibility in front of a driver of a vehicle from decreasing. The lighting control device controls a light distribution state by a vehicular headlamp, and includes: an obstacle detection part that detects an obstacle from an image in front of a subject vehicle taken by a camera; a light-shielding area deriving part that derives a first light-shielding area of a left headlamp attached to a front left side of the vehicle, and a second light-shielding area of a right headlamp attached to a front right side of the vehicle according to a position of the obstacle when the obstacle detection part detects the obstacle; and a light distribution control part that controls a light distribution state of the right headlamp and a light distribution state of the left headlamp according to the first light-shielding area and the second light-shielding area derived by the light-shielding area deriving part. The first light-shielding area and the second light-shielding area are different from each other.

Lighting systems, devices, and units that provide illumination according to a detected orientation relative to a reference plane or a reference vector. In some examples, a light bar for use on a vehicle includes first and second sets of light emitters that are selectively activated and inactive based on a detected orientation of the light bar relative to a reference plane or reference vector.

A light device for a motor vehicle, comprising a rod-like light guide (1) having a longitudinal axis (15) connecting two ends of the light guide (1), and a primary light source (2) at least one of the ends of the light guide (1) for emitting primary light rays (10) in the light guide (1). The light guide (1) comprises a front output surface (4) for the output of the primary light rays (10) and at a rear side (12) of the light guide (1) unbinding elements (6) to direct the primary light rays (10) propagating along the light guide (1) to the output surface (4). The light device further comprises at least one reflector unit (7) comprising a secondary light source (8) for emitting secondary light rays (11) and a reflector (9) adapted to reflect and direct the secondary light rays (11) in the form of a light stream (14) to the light guide (1), wherein in the lateral cross-section the light stream (14) has a shape of a band (13) having a longitudinal axis (3) being substantially parallel to the longitudinal axis (15) of the light guide (1), and the rear side (12) of the light guide (1) comprises a binding area (5) including binding surfaces (5a) configured to bind the secondary light rays (11) to the light guide (1).

A lighting system of a vehicle may include light units and controllers for operating the light units. Each light unit is multifunctional in that the light unit may operate in various modes, which may be invoked at different times under varying circumstances. A light unit on the first end of a vehicle may operate as a headlight if the first end is the front end of the vehicle. On the other hand, the light unit may operate as a tail light if the first end is the rear end of the vehicle. Furthermore, the light unit may operate as a turn signal in either direction or brake light while the first end is the rear end of the vehicle. The light unit includes a lens array positioned to receive light from various light sources. The lighting system may operate in a fashion that allows for lighting redundancy on each end of the vehicle in the event of a lighting controller failure.

One example includes a communication system. The system includes a data transmitter configured to generate a digital communication signal and a data receiver configured to receive the digital communication signal. The system also includes a pulse-width distortion (PWD) correction circuit arranged between the data transmitter and the data receiver and being configured to adjust at least one timing parameter associated with the communication signal.

To perform an ideal calibration operation, a start switch started manually or by an on-vehicle camera calibration device, a start switching device started by an operation of the start switch and projection devices installed in an outer periphery of a vehicle body, including at least one or more light sources irradiating the surroundings of the vehicle body with light are provided, in which whether a calibration operation is possible or not is determined based on references on a road surface projected by the projection devices.

One example includes a communication system. The system includes a data transmitter configured to generate a digital communication signal and a data receiver configured to receive the digital communication signal. The system also includes a pulse-width distortion (PWD) correction circuit arranged between the data transmitter and the data receiver and being configured to adjust at least one timing parameter associated with the communication signal.

An adaptive LED multi-module headlamp with integrated dipped beam and high beam includes a dipped beam and high beam following-up adaptive beam pattern control system, a light compensation system, and a color temperature control system; the dipped beam and high beam following-up adaptive beam pattern control system comprising a LED light source module array, the LED light source module array comprising a number of LED light source modules including more than two LED light source modules parallel to each other which forming a direct light source, axes of the more than two LED light source modules paralleling with the center of vehicle body, and including more than one LED light source module arranged outside the direct light source which forming a steering light source, angle between axes of the more than one LED light source module and the center of vehicle body being acute angle, the angle between axes of the LED light module of the steering light source and vehicle body increasing in turn from inside out. A dipped beam and high beam spot during driving straight and following-up beam pattern while turning can be achieved to get a better illumination angle by arranging multiple independent LED light source modules as a headlamp and by controlling different LED light source modules to be lighted during driving straight or turning.