A lighting device for vehicles having a light source apparatus for emitting light, having an optical apparatus, which contains a lens arrangement with a multiplicity of lenses, for deflecting the light in accordance with a specified light distribution, and having a positioner for adjusting a lens along an optical axis of the lens arrangement, wherein the positioner is implemented as an apparatus for setting basic scatter width in such a manner that light can be projected in different scatter widths for a specified basic lighting function.

A light irradiation device includes a light source, a first reflecting surface, a second reflecting surface and a rotation mechanism that rotates the first reflecting surface around a first central axis passing through a center of the first reflecting surface and rotates the second reflecting surface around a second central axis passing through a center of the second reflecting surface. The first central axis is orthogonal to a first reference surface that is 45 degrees inclined with respect to a first plane that is orthogonal to an optical axis of light incident upon the first reflecting surface, the second central axis is orthogonal to a second reference surface parallel to the first reference surface, and the first reflecting surface is inclined with respect to the first reference surface and the second reflecting surface is inclined with respect to the second reference surface.

A vehicle headlight (1) includes a first lamp unit (10) that includes a light distribution pattern forming unit (12) which forms a predetermined light distribution pattern (P1) according to the light amount of the light emitted from a plurality of light emitting elements (13), and a second lamp unit (20), in which a light distribution pattern (PL) of a low beam is formed by light emitted from the first lamp unit (10) and light emitted from the second lamp unit (20), and in the light distribution pattern (PL) of the low beam, the elbow point (EP) is included in a predetermined region (CA) formed by light including the light from the first lamp unit (10), and a first side region (SA1) and a second side region (SA2) sandwiching the predetermined region (CA) are formed by the light emitted from the second lamp unit (20).

A vehicle headlight (1) includes a first lamp unit (10) that includes a light distribution pattern forming unit (12) which forms a predetermined light distribution pattern (P1) according to the light amount of the light emitted from a plurality of light emitting elements (13), and a second lamp unit (20), in which a light distribution pattern (PL) of a low beam is formed by light emitted from the first lamp unit (10) and light emitted from the second lamp unit (20), and in the light distribution pattern (PL) of the low beam, the elbow point (EP) is included in a predetermined region (CA) formed by light including the light from the first lamp unit (10), and a first side region (SA1) and a second side region (SA2) sandwiching the predetermined region (CA) are formed by the light emitted from the second lamp unit (20).

An optical unit includes a first light source, a second light source, a rotary reflector that rotates about an axis of rotation while reflecting first light emitted from the first light source, and a projection lens that projects the first light reflected by the rotary reflector into a light illuminating direction of the optical unit to form a first light distribution pattern. The second light source is disposed such that second light emitted from the second light source enters the projection lens without being reflected by the rotary reflector. The projection lens is configured to project the second light into the light illuminating direction of the optical unit to form a second light distribution pattern such that the second light distribution pattern overlaps an end portion of the first light distribution pattern in a right-left direction.

A projection lens has a first lens body including a first incidence section located at a side facing a first light source and an emission section located at a side opposite to the first incidence section, and a second lens body including a second incidence section located at a side facing the second light source, a refractive index of the second lens body is smaller than a refractive index of the first lens body, and a structure in which the first lens body and the second lens body abut each other while having first boundary surfaces, which are provided between the emission section and the second incidence section, and second boundary surfaces, which are provided between the first incidence section and the second incidence section from a boundary line with respect to the first boundary surfaces, interposed therebetween is provided.

A projection lens has a first lens body including a first incidence section located at a side facing a first light source and an emission section located at a side opposite to the first incidence section, and a second lens body including a second incidence section located at a side facing the second light source, a refractive index of the second lens body is smaller than a refractive index of the first lens body, and a structure in which the first lens body and the second lens body abut each other while having first boundary surfaces, which are provided between the emission section and the second incidence section, and second boundary surfaces, which are provided between the first incidence section and the second incidence section from a boundary line with respect to the first boundary surfaces, interposed therebetween is provided.

A light distribution controller controls a light distribution variable lamp including a plurality of pixels arranged in an array. The processor executes the software program to generate at least one image defining the light distribution of the light distribution variable lamp, and writes the image in the volatile memory. A monitoring microcontroller detects an abnormality of the processor. A hardware logic circuit (i) generates a light distribution image data to be output to the light distribution variable lamp on the basis of at least one image written in the volatile memory in a normal state of the processor, and (ii) generates a light distribution image data on the basis of the generated auxiliary image without depending on the processor in an abnormal state of the processor.

A light distribution controller controls a light distribution variable lamp including a plurality of pixels arranged in an array. The processor executes the software program to generate at least one image defining the light distribution of the light distribution variable lamp, and writes the image in the volatile memory. A monitoring microcontroller detects an abnormality of the processor. A hardware logic circuit (i) generates a light distribution image data to be output to the light distribution variable lamp on the basis of at least one image written in the volatile memory in a normal state of the processor, and (ii) generates a light distribution image data on the basis of the generated auxiliary image without depending on the processor in an abnormal state of the processor.

A vehicle lamp includes a first lamp unit for forming a first region of a beam pattern, and a second lamp unit for forming a second region of the beam pattern. The first lamp unit and the second lamp unit are arranged in a left-right direction. Each of the first lamp unit and the second lamp unit includes a plurality of lamp modules arranged in the left-right direction, each of the plurality of lamp modules including a light source unit including a light source and a light path adjusting unit. A position of light irradiation region formed by the light emitted from each of the plurality of lamp modules is particularly configured depending on a position of the light source with respect to a rear focal point of the light path adjusting unit.