A light-emitting device (20) includes a light-emitting region (140). The light-emitting region (140) includes a plurality of light-emitting units (142) and a plurality of light-transmitting units (144), and each of the plurality of light-transmitting units (144) is located between the light-emitting elements (142) adjacent to each other. The light-emitting region (140) is located on a side of one surface (outer surface (202)) of a base material (200) having light-transmitting properties and has an inclination with respect to the one surface (outer surface (202)). The base material (200) is rear glass of an automobile. The base material (200) partitions a region outside a mobile object (region (RG1)) from a region inside the mobile object (region (RG2)).

A computer includes a processor and a memory storing instructions executable by the processor to receive radar data from a radar sensor of a vehicle; demarcate a zone of coverage of the radar sensor, the zone of coverage having an area based on a number of objects indicated by the radar data; and after demarcating the zone of coverage, in response to detecting a newly present object in the zone of coverage, adjust a scanning rate of the radar sensor based on a distance of the newly present object from the radar sensor.

A computer includes a processor and a memory storing instructions executable by the processor to receive radar data from a radar sensor of a vehicle; demarcate a zone of coverage of the radar sensor, the zone of coverage having an area based on a number of objects indicated by the radar data; and after demarcating the zone of coverage, in response to detecting a newly present object in the zone of coverage, adjust a scanning rate of the radar sensor based on a distance of the newly present object from the radar sensor.

A semitrailer rear lighting device for enhancing safety of a semitrailer hauling an oversized load includes a plurality of brackets, a pair of bars, and an indicator. Each bracket is mountable to a respective opposed side of a semitrailer so that at least two brackets are mounted to each opposed side. Each bar is slidably engaged to the brackets positioned on a respective opposed side of the semitrailer. The bars are selectively extensible from a rear of the semitrailer to position a terminus of the pair of bars past an end of an oversized load that extends past the rear of the semitrailer. The indicator is engaged to the terminus of the pair of bars. The indicator indicates to a trailing motorist one or more of the rear of the semitrailer, the end of the oversized load, a braking action of the semitrailer, or a turning of the semitrailer.

A semitrailer rear lighting device for enhancing safety of a semitrailer hauling an oversized load includes a plurality of brackets, a pair of bars, and an indicator. Each bracket is mountable to a respective opposed side of a semitrailer so that at least two brackets are mounted to each opposed side. Each bar is slidably engaged to the brackets positioned on a respective opposed side of the semitrailer. The bars are selectively extensible from a rear of the semitrailer to position a terminus of the pair of bars past an end of an oversized load that extends past the rear of the semitrailer. The indicator is engaged to the terminus of the pair of bars. The indicator indicates to a trailing motorist one or more of the rear of the semitrailer, the end of the oversized load, a braking action of the semitrailer, or a turning of the semitrailer.

A vehicle control device mounted in a vehicle includes: a first recognizer configured to recognize a person near the vehicle; a first determiner configured to determine whether the person recognized by the first recognizer is a pre-registered user; and a controller configured to control a lighting device to project a projection image to a position for which a stop position of the vehicle is a criterion in a case where the first determiner determines that the person recognized by the first recognizer is the pre-registered user.

Disclosed are an organic light emitting display device and lighting apparatus for vehicles using the same. The organic light emitting display device includes a first layer including a first organic layer and a first emission layer on a first electrode, a second layer including a second emission layer and a second organic layer on the first layer, a second electrode on the second layer, and a third organic layer between the first layer and the second layer. A thickness of the first emission layer is equal to or greater than a thickness of each of the first organic layer and the second organic layer.

Disclosed are an organic light emitting display device and lighting apparatus for vehicles using the same. The organic light emitting display device includes a first layer including a first organic layer and a first emission layer on a first electrode, a second layer including a second emission layer and a second organic layer on the first layer, a second electrode on the second layer, and a third organic layer between the first layer and the second layer. A thickness of the first emission layer is equal to or greater than a thickness of each of the first organic layer and the second organic layer.

A reflector unit may behave as a retroreflector to reflect light of a selected color. The reflector unit may comprise a first reflector having a first color, a second reflector having a second color, and a mask that either allows incoming light to reach the first reflector and not the second reflector or allows incoming light to reach the second reflector and not the first reflector. An active light unit may emit light of a particular color in response to receiving light. In this fashion, the active light unit may simulate the operation of a reflector. The reflector unit and the active light unit may operate on a bi-directional vehicle.

A rear lamp unit control system for a vehicle including: a first lamp provided on a vehicle body side of a vehicle rear face; a second lamp provided on an opening-closing body side of the vehicle rear face; and a controller configured to control the first lamp and the second lamp. When an opening-closing body of the vehicle is in a closed state, the controller is configured to control the first lamp and the second lamp so that the first lamp and the second lamp turn on at different luminous intensities to each other. In response to the second lamp being in need to be turned on when the opening-closing body is in an open state, the controller is configured to turn the first lamp on at a luminous intensity that is equivalent to a luminous intensity of the second lamp when the second lamp is turned on.