Abstract: A vehicular lamp includes a first light source that emits light for forming a first distribution pattern, a second light source that emits light for forming a second distribution pattern that is added to the first distribution pattern, and a light guide member disposed in front of the first light source. The light guide member includes a first incidence surface on which the light emitted from the first light source is incident, a total reflection surface by which a part of the light incident from the first incidence surface is totally reflected, and a first emission surface from which the light totally reflected by the total reflection surface is emitted toward the lamp front. A part of the light emitted from the second light source passes through the total reflection surface and the light guide member and is emitted from the first emission surface toward the lamp front.

Abstract: A vehicle lamp configured to selectively perform a low-beam irradiation and a high-beam irradiation includes a projector lens, a light emitting element disposed behind the projector lens and configured to emit light for forming a low-beam light distribution pattern, a light emitting element disposed behind the projector lens and configured to emit light for forming an additional high-beam light distribution pattern, a upward reflecting surface (shade) disposed behind the projector lens and configured to form a cutoff line of the low-beam light distribution pattern, and an optical path change portion configured to change an optical path of a part of light emitted from the light emitting element so as to travel toward a portion between the low-beam light distribution pattern and the additional high-beam light distribution pattern.

Abstract: A vehicular lamp includes a first light source that emits light for forming a first distribution pattern, a second light source that emits light for forming a second distribution pattern that is added to the first distribution pattern, and a light guide member disposed in front of the first light source. The light guide member includes a first incidence surface on which the light emitted from the first light source is incident, a total reflection surface by which a part of the light incident from the first incidence surface is totally reflected, and a first emission surface from which the light totally reflected by the total reflection surface is emitted toward the lamp front. A part of the light emitted from the second light source passes through the total reflection surface and the light guide member and is emitted from the first emission surface toward the lamp front.

Abstract: A vehicle lamp configured to selectively perform a low-beam irradiation and a high-beam irradiation includes a projector lens, a light emitting element disposed behind the projector lens and configured to emit light for forming a low-beam light distribution pattern, a light emitting element disposed behind the projector lens and configured to emit light for forming an additional high-beam light distribution pattern, a upward reflecting surface (shade) disposed behind the projector lens and configured to form a cutoff line of the low-beam light distribution pattern, and an optical path change portion configured to change an optical path of a part of light emitted from the light emitting element so as to travel toward a portion between the low-beam light distribution pattern and the additional high-beam light distribution pattern.

Abstract: Disclosed is a vehicular lamp including: a plurality of light emitting elements for drawing a pattern on a road surface which is individually turned ON/OFF; and an optical system which transmits light emitted from the plurality of light emitting elements, the plurality of light emitting elements is disposed along a horizontal direction of a vehicle in parallel, and the optical system projects a light source image of each light emitting element on a road surface as a light distribution pattern which extends in the vertical direction more than in the horizontal direction of the vehicle.

Abstract: Disclosed is a vehicular lamp including: a plurality of light emitting elements for drawing a pattern on a road surface which is individually turned ON/OFF; and an optical system which transmits light emitted from the plurality of light emitting elements, the plurality of light emitting elements is disposed along a horizontal direction of a vehicle in parallel, and the optical system projects a light source image of each light emitting element on a road surface as a light distribution pattern which extends in the vertical direction more than in the horizontal direction of the vehicle.

Abstract: Each of a pair of lower reflection areas, which are located on both left and right sides of an optical axis in a lower end portion of a reflective surface of a reflector, respectively, is formed so as to converge light from a light source at a position located forward of a rear side focal point of a projection lens in a horizontal direction, and on the same lateral side as that of each of the lower reflection areas with respect to the optical axis. Thus, the pair of light ray bundles are emitted from the projection lens, whereby a pair of additional light distribution patterns are formed on both sides of a lateral direction central portion in an upper area of a high-beam distribution pattern, respectively. The upper area of the high-beam distribution pattern is thus made bright widely in a lateral direction.

Abstract: An infrared light irradiating lamp for a vehicle includes a projection lens disposed on an optical axis extending in a longitudinal direction of the vehicle; a light source bulb disposed behind a rear side focal point of the projection lens that includes a filament for emitting a light; a reflector for reflecting the light emitted from the light source bulb in a forward direction close to the optical axis; and an infrared light transmitting filter disposed between the reflector and the projection lens. The infrared light transmitting filter includes an infrared light transmitting film and a diffusing portion for diffusing a light transmitted from the reflector. The infrared light transmitting filter is movable between a transmitting position in which the infrared light transmitting film intercepts light reflected by the reflector and a retreating position in which infrared light transmitting film does not intercept the reflected light.

Abstract: Each of a pair of lower reflection areas, which are located on both left and right sides of an optical axis in a lower end portion of a reflective surface of a reflector, respectively, is formed so as to converge light from a light source at a position located forward of a rear side focal point of a projection lens in a horizontal direction, and on the same lateral side as that of each of the lower reflection areas with respect to the optical axis. Thus, the pair of light ray bundles are emitted from the projection lens, whereby a pair of additional light distribution patterns are formed on both sides of a lateral direction central portion in an upper area of a high-beam distribution pattern, respectively. The upper area of the high-beam distribution pattern is thus made bright widely in a lateral direction.

Abstract: An infrared light irradiating lamp for a vehicle includes a projection lens disposed on an optical axis extending in a longitudinal direction of the vehicle; a light source bulb disposed behind a rear side focal point of the projection lens that includes a filament for emitting a light; a reflector for reflecting the light emitted from the light source bulb in a forward direction close to the optical axis; and an infrared light transmitting filter disposed between the reflector and the projection lens. The infrared light transmitting filter includes an infrared light transmitting film and a diffusing portion for diffusing a light transmitted from the reflector. The infrared light transmitting filter is movable between a transmitting position in which the infrared light transmitting film intercepts light reflected by the reflector and a retreating position in which infrared light transmitting film does not intercept the reflected light.

Abstract: An infrared light irradiating lamp for a vehicle includes a projection lens disposed on an optical axis extending in a longitudinal direction of the vehicle; a light source bulb disposed behind the projection lens, the light source bulb including a filament for emitting light; a reflector for reflecting light emitted from the light source bulb in a forward direction; and an infrared light transmitting film provided between the reflector and the projection lens. The light source bulb is disposed such that a longitudinal direction of the filament is substantially orthogonal to the optical axis.

Abstract: There is provided a movable shade which can move between a light shielding position and a light shielding moderating position, so that a single lamp can be used both for low beam and high beam. Then, the longitudinal length of the lamp is shortened so as to attempt to make the lamp compact in size by inserting a light source bulb into a reflector from a side of an optical axis Ax. As this occurs, the insertion and fixing of the light source bulb is implemented at a position which is apart downwardly from the optical axis, whereby the formation of a light source bulb inserting and fixing hole in optical axis sideways areas on a reflecting surface of the reflector is avoided which would otherwise have to occur.

Abstract: By inserting a light source bulb into a reflector from a side thereof at a position apart downwardly from an optical axis, it is made possible to use an area situated on a side of the optical axis effectively for controlling the light distribution of a vehicle headlamp. In addition, by providing an additional reflector between the light source bulb and a shade for reflecting light from a light source laterally outwardly and diagonally forward of a vehicle through a gap between the reflector and a projection lens, a diffused area of a low beam light-distribution pattern is illuminated brightly and the diffused area is expanded laterally outwardly of the vehicle.

Abstract: There is provided a movable shade which can move between a light shielding position and a light shielding moderating position, so that a single lamp can be used both for low beam and high beam. Then, the longitudinal length of the lamp is shortened so as to attempt to make the lamp compact in size by inserting a light source bulb into a reflector from a side of an optical axis Ax. As this occurs, the insertion and fixing of the light source bulb is implemented at a position which is apart downwardly from the optical axis, whereby the formation of a light source bulb inserting and fixing hole in optical axis sideways areas on a reflecting surface of the reflector is avoided which would otherwise have to occur.

Abstract: By inserting a light source bulb into a reflector from a side thereof at a position apart downwardly from an optical axis, it is made possible to use an area situated on a side of the optical axis effectively for controlling the light distribution of a vehicle headlamp. In addition, by providing an additional reflector between the light source bulb and a shade for reflecting light from a light source laterally outwardly and diagonally forward of a vehicle through a gap between the reflector and a projection lens, a diffused area of a low beam light-distribution pattern is illuminated brightly and the diffused area is expanded laterally outwardly of the vehicle.

Abstract: A reflecting mirror, for a vehicle headlamp, which provides a sufficient amount of light near a slant cutoff line in downward-beam light distribution, thereby improving visibility in a long-distance region and a medium-distance region. The reflecting mirror has at least a first reflecting area and a second reflecting area. For a first reflecting area (10B—close to a horizontal reference face (x-y plane) when a reflecting face (10) is viewed from an optical axis direction—a reference curve is set in a slant reference face inclined to the horizontal reference face at an angle equal to an angle (&thgr;col) of a slant cutoff line with a horizontal line.

Abstract: A reflecting mirror, for a vehicle headlamp, which provides a sufficient amount of light near a slant cutoff line in downward-beam light distribution, thereby improving visibility in a long-distance region and a medium-distance region. The reflecting mirror has at least a first reflecting area and a second reflecting area. For a first reflecting area (10B)—close to a horizontal reference face (x-y plane) when a reflecting face (10) is viewed from an optical axis direction—a reference curve is set in a slant reference face inclined to the horizontal reference face at an angle equal to an angle (&thgr;col) of a slant cutoff line with a horizontal line.