The vehicle-mounted light source device of the present invention includes a light source unit including a light source that emits a red laser beam, a light source that emits a green laser beam, and a light source that emits a blue laser beam; a light combining system that combines the red laser beam, the green laser beam, and the blue laser beam; a light diffusing element that adjusts diffusion angles of light beams emitted from the light combining system to a predetermined angle; an optical projection system that projects light beams emitted from the light diffusing element to distance; and a light distribution controller that is disposed between the light diffusing element and the optical projection system and that controls distributions of light beams introduced into the optical projection system.

An ADB lamp unit (10) of a vehicle headlamp includes a light source constituted by a plurality of semiconductor light-emitting elements that can be turned on/off individually, and a reflector 16 having a reflective surface that is based on a paraboloid of revolution. The reflector (16) is constituted by a perpendicularly split plurality of partial reflectors (16a) through (16e), with the reflective surface of each partial reflector being configured such that the horizontal spread of reflected light reflected by each partial reflectors is approximately equal in a predetermined projection plane.

The present invention is provided with semiconductor light sources, reflectors, and lenses. The semiconductor light sources have a light-emitting surface. The reflectors have reflection surfaces comprising free-form surfaces. The lenses comprise a convex lens and a concave lens. As a result, the present invention is able to accurately control the light distribution of a predetermined light distribution pattern.

A lamp unit includes a light-emitting element array composed by a plurality of light-emitting elements, having respective individual irradiation regions constituting a high-beam light-distribution pattern and configured to be capable of being turned on individually, mounted in array on a substrate, a projection lens disposed in front of the light-emitting element array, and a reflector disposed below the light-emitting element array. Inter-light-emitting-element spacing within the light-emitting element array widens the more separated the elements are from the projection lens' optical axis.

A method of providing multiple headlamp configurations sharing a common vehicle-mount interface, the method comprising: selecting one of at least two reflectors, the at least two reflectors sharing a common forward interface and the common vehicle-mount interface at a rearward interface, with each having a different reflector shape; affixing the selected reflector to a rear portion of a bezel shaped to conform to the common forward interface of the at least two reflectors; and affixing one of at least two lamp bezels to a forward interface of the bezel, wherein the at least two lamp bezels share a common rear portion shaped to conform to the common forward interface of the bezel, and are shaped differently at their respective front portions.

An illumination apparatus includes a light-emitting element, a first lens, and a second lens. The first lens faces the light-emitting element, and has a radiation port from which a light beam is radiated, a first incident surface, a second incident surface, a first reflection surface, and a second reflection surface. The second lens faces the radiation port. The first incident surface faces the light-emitting element, and guides a light beam from the light-emitting element to the radiation port. The second incident surface guides a light beam not passing through the first incident surface to a direction toward the outer periphery of the first lens. The first reflection surface reflects a light beam from the second incident surface to guide the light beam to the radiation port. The second reflection surface reflects a light beam passing through the first incident surface and then deviating from the direction toward the radiation port, and a light beam reflected on the first reflection surface and then deviating from a direction toward the radiation port, to guide these light beams to the radiation port.

Provided is a board. The board may include: a plurality of body portions; and a connecting portion disposed between the plurality of body portions to integrally connect the plurality of body portions, wherein a shape of the connecting portion is changed between a flat shape and a protruding shape, when positions of the plurality of body portions are changed by rotating the plurality of body portions based on the connecting portion.

A vehicle headlight device including a low-beam lamp and a high-beam lamp that emit light into a first light distribution region that is in front of a vehicle, and a patterned-light emitter that emits light into a second light distribution region in an illumination pattern in which bright regions and dark regions alternately repeat, the second light distribution region being further toward an outer side than the first light distribution region in a width direction of the vehicle. The patterned-light emitter emits light such that at least part of a region of the illumination pattern has a movement that is different from other regions of the illumination pattern.

A vehicle headlight device including a low-beam lamp and a high-beam lamp that emit light into a first light distribution region that is in front of a vehicle, and a patterned-light emitter that emits light into a second light distribution region in an illumination pattern in which bright regions and dark regions alternately repeat, the second light distribution region being further toward an outer side than the first light distribution region in a width direction of the vehicle. The patterned-light emitter emits light such that at least part of a region of the illumination pattern has a movement that is different from other regions of the illumination pattern.

A vehicle headlight device comprising: a low-beam lamp and a high-beam lamp that illuminates a first light distribution region that is in front of the vehicle with light; and a patterned-light emitter that illuminates a second light distribution region with light in an illumination pattern in which bright regions and dark regions alternately repeat, the second light distribution region being further toward an outer side than the first light distribution region in the vehicle width direction, wherein the patterned-light emitter emits light such that intervals between the bright regions that are adjacent are wider at a position further ahead of the vehicle than at a position closer to the vehicle in a traveling direction of the vehicle.