A condenser lens includes an exit surface divided into a plurality of light controlling surfaces. The exit surface includes a first exit region and a second exit region. The first exit region includes a plurality of first light controlling surfaces arrayed in a predetermined direction. The second exit region is located side by side with the first exit region and includes a plurality of second light controlling surfaces arrayed in the predetermined direction. A border between adjacent first light controlling surfaces and a border between adjacent second light controlling surfaces are out of alignment in the predetermined direction.

An optical unit includes a cylindrical rotatable lens and a light source provided in the rotatable lens. The rotatable lens is configured such that a light output from the light source is incident via an inner circumferential surface and is output via an outer circumferential surface as an irradiating beam, and a predetermined irradiated area is formed by scanning a space in front with the irradiating beam according to a periodical movement of the rotatable lens.

A light distribution control device can perform diffused light distribution control designed to widen an irradiation range of a headlamp of an own vehicle. The light distribution control device is equipped with a recognition unit that recognizes a situation around the own vehicle, and a control unit that performs diffused light distribution control when a curve section in front of the own vehicle in a traveling direction thereof is detected, from a result of recognition by the recognition unit. The control unit controls the headlamp such that a non-required irradiation region where irradiation with light is not required is restrained from being irradiated with light and that a region other than the non-required irradiation region is irradiated with more light, when the non-required irradiation region is detected in the irradiation range of the headlamp in performing diffused light distribution control, from the result of recognition.

A light distribution control device can perform diffused light distribution control designed to widen an irradiation range of a headlamp of an own vehicle. The light distribution control device is equipped with a recognition unit that recognizes a situation around the own vehicle, and a control unit that performs diffused light distribution control when a curve section in front of the own vehicle in a traveling direction thereof is detected, from a result of recognition by the recognition unit. The control unit controls the headlamp such that a non-required irradiation region where irradiation with light is not required is restrained from being irradiated with light and that a region other than the non-required irradiation region is irradiated with more light, when the non-required irradiation region is detected in the irradiation range of the headlamp in performing diffused light distribution control, from the result of recognition.

Provided is a light-emitting cell array including a first emission region including a first light-emitting cell provided in a first direction, a second emission region including a plurality of second light-emitting cells, the plurality of second light-emitting cells being stacked on the first light-emitting cell in a second direction intersecting with the first direction and provided in the first direction, and a third emission region including a plurality of third light-emitting cells different from the plurality of second light-emitting cells, the plurality of third light-emitting cells being stacked on the plurality of second light-emitting cells in the second direction and provided in the first direction.

Provided is a light-emitting cell array including a first emission region including a first light-emitting cell provided in a first direction, a second emission region including a plurality of second light-emitting cells, the plurality of second light-emitting cells being stacked on the first light-emitting cell in a second direction intersecting with the first direction and provided in the first direction, and a third emission region including a plurality of third light-emitting cells different from the plurality of second light-emitting cells, the plurality of third light-emitting cells being stacked on the plurality of second light-emitting cells in the second direction and provided in the first direction.

A headlight module includes: a light source for emitting light; a condensing optical element for concentrating the light; and an optical element including an incident surface for receiving the concentrated light, a reflecting surface for reflecting the received light, and an emitting surface for emitting the reflected light. The condensing optical element changes a divergence angle of the light to form a light distribution pattern. The reflected light and light that enters the optical element and is not reflected by the reflecting surface are superposed on a plane including a point located at a focal position of the emitting surface in a direction of an optical axis of the emitting surface and being perpendicular to the optical axis, thereby forming a high luminous intensity region in the light distribution pattern on the plane. The emitting surface has positive refractive power and projects the light distribution pattern formed on the plane.

A headlight module includes: a light source for emitting light; a condensing optical element for concentrating the light; and an optical element including an incident surface for receiving the concentrated light, a reflecting surface for reflecting the received light, and an emitting surface for emitting the reflected light. The condensing optical element changes a divergence angle of the light to form a light distribution pattern. The reflected light and light that enters the optical element and is not reflected by the reflecting surface are superposed on a plane including a point located at a focal position of the emitting surface in a direction of an optical axis of the emitting surface and being perpendicular to the optical axis, thereby forming a high luminous intensity region in the light distribution pattern on the plane. The emitting surface has positive refractive power and projects the light distribution pattern formed on the plane.

A lighting system and a method of operating a lighting module are described. The lighting module includes a heat sink a first LED element mounted on the heat sink emits light as a low beam pattern. A second LED element mounted on the heat sink emits light as a high beam pattern. A driver circuit electrically connected to the first and second LED elements to selectively supply electrical power for operation. The driver circuit is disposed to operate in a first and a second mode. In the first mode, to provide a low beam illumination, the first LED element is operated in a high power state while the second LED element is turned off. In the second mode, to provide a high beam illumination, the second LED element is operated in a high power state, while the first LED element is operated in a dimmed state.

A lighting system and a method of operating a lighting module are described. The lighting module includes a heat sink a first LED element mounted on the heat sink emits light as a low beam pattern. A second LED element mounted on the heat sink emits light as a high beam pattern. A driver circuit electrically connected to the first and second LED elements to selectively supply electrical power for operation. The driver circuit is disposed to operate in a first and a second mode. In the first mode, to provide a low beam illumination, the first LED element is operated in a high power state while the second LED element is turned off. In the second mode, to provide a high beam illumination, the second LED element is operated in a high power state, while the first LED element is operated in a dimmed state.