Abstract: A vehicle light can include a light source, a major reflecting surface, a projection lens, and a shutter. A first reflecting surface of an ellipse group reflecting surface preferably has a first focus on the light source and a second focus, capable of being inserted in or removed from an optical path from the light source to a second fixed reflecting surface. A first fixed reflecting surface of a parabolic group reflecting surface can include a focus on the second focus of the first reflecting surface, and at least two second reflecting surface elements. The second fixed reflecting surface can include a first focus on the light source and at least two third reflecting surface elements for reflecting light rays that have traveled an optical path from the light source thereto without being reflected by the first reflecting surface.

Abstract: A vehicle light can include a light source, a major reflecting surface, a projection lens, and a shutter. A first reflecting surface of an ellipse group reflecting surface preferably has a first focus on the light source and a second focus, capable of being inserted in or removed from an optical path from the light source to a second fixed reflecting surface. A first fixed reflecting surface of a parabolic group reflecting surface can include a focus on the second focus of the first reflecting surface, and at least two second reflecting surface elements. The second fixed reflecting surface can include a first focus on the light source and at least two third reflecting surface elements for reflecting light rays that have traveled an optical path from the light source thereto without being reflected by the first reflecting surface.

Abstract: A vehicle lamp emitting light to a lateral direction can include a simple construction to reduce design limitations, and can achieve desired light distribution characteristics by controlling the direction and intensity of light illuminated in a range covering the front and the side of the vehicle. The vehicle lamp preferably includes: a second reflecting surface for reflecting incident light from a light source to a predetermined direction; a third reflecting surface, arranged forward of the light source and backward of a projection lens and out of a main optical path, for reflecting light from the second reflecting surface toward front; and a fourth reflecting surface, arranged forward of the third reflecting surface and out of the main optical path, for reflecting light from the third reflecting surface to a lateral direction relative at least to a region of light emitted from the projection lens along the main optical path.

Abstract: A vehicle light can include a light source, a major reflecting surface, a projection lens, and a shutter. A first reflecting surface of an ellipse group reflecting surface preferably has a first focus on the light source and a second focus, capable of being inserted in or removed from an optical path from the light source to a second fixed reflecting surface. A first fixed reflecting surface of a parabolic group reflecting surface can include a focus on the second focus of the first reflecting surface, and at least two second reflecting surface elements. The second fixed reflecting surface can include a first focus on the light source and at least two third reflecting surface elements for reflecting light rays that have traveled an optical path from the light source thereto without being reflected by the first reflecting surface.

Abstract: A conventional projector headlamp has low efficiency because an amount of light is shaded almost half by a shutter for a low-beam light distribution. In addition, only a projection lens is seen in the installed condition, inviting old-fashioned designs disadvantageously. In a projector headlamp (1) of the invention, a vertical section passing through the center of a projection lens (5) includes a convex front surface and a flat rear surface (5a). A line connecting the upper end to the lower end on the rear surface (5a) is tilted to the vertical. Thus, the projection lens (5) has a prismatic action for directing the entire light downward. This is effective to reduce an amount of light to be shaded by a shutter (4) and provide improved brightness and novel designed appearances.

Abstract: A vehicle light can include a light source, a major reflecting surface, a projection lens, and a shutter. A first reflecting surface of an ellipse group reflecting surface preferably has a first focus on the light source and a second focus, capable of being inserted in or removed from an optical path from the light source to a second fixed reflecting surface. A first fixed reflecting surface of a parabolic group reflecting surface can include a focus on the second focus of the first reflecting surface, and at least two second reflecting surface elements. The second fixed reflecting surface can include a first focus on the light source and at least two third reflecting surface elements for reflecting light rays that have traveled an optical path from the light source thereto without being reflected by the first reflecting surface.

Abstract: A vehicle light can include a light source, a major reflecting surface, a projection lens, and a shutter. A first reflecting surface of an ellipse group reflecting surface preferably has a first focus on the light source and a second focus, capable of being inserted in or removed from an optical path from the light source to a second fixed reflecting surface. A first fixed reflecting surface of a parabolic group reflecting surface can include a focus on the second focus of the first reflecting surface, and at least two second reflecting surface elements. The second fixed reflecting surface can include a first focus on the light source and at least two third reflecting surface elements for reflecting light rays that have traveled an optical path from the light source thereto without being reflected by the first reflecting surface.

Abstract: A projector type lamp can include a projection lens formed by combining together projection lens elements obtained by processing a plurality of projection lenses that can be substantially identical in optical axis center Z, focal length, and focal point, yet different in outer diameter. The projection lens can appear substantially rectangular when viewed in an optical axis direction. Boundary portions between the plurality of processed projection lens elements can be composed of a line connecting points of intersection between a contour line of the projection lens and a line defining a part of each unprocessed projection lens element at which thickness is substantially zero. The lens surfaces of the processed projection lens elements can be continuous with one another through stepped portions that are parallel to the optical axis of the projection lens.

Abstract: A vehicle lamp emitting light to a lateral direction can include a simple construction to reduce design limitations, and can achieve desired light distribution characteristics by controlling the direction and intensity of light illuminated in a range covering the front and the side of the vehicle. The vehicle lamp preferably includes: a second reflecting surface for reflecting incident light from a light source to a predetermined direction; a third reflecting surface, arranged forward of the light source and backward of a projection lens and out of a main optical path, for reflecting light from the second reflecting surface toward front; and a fourth reflecting surface, arranged forward of the third reflecting surface and out of the main optical path, for reflecting light from the third reflecting surface to a lateral direction relative at least to a region of light emitted from the projection lens along the main optical path.

Abstract: A vehicle lamp mounted on a vehicle body which can lean to one side at the time of turning, i.e., going around a curve, moving circularly, or the like. The lamp can include a first ellipse group reflecting surface having a movable part and an opening part, and a second ellipse group reflecting surface corresponding to an area covering a moving range of the opening part. The movable part of the first ellipse group reflecting surface can move by a drive unit to form a main light distribution that is kept in a substantially horizontal position. Light rays that pass through the opening part reach the second ellipse group reflecting surface and are reflected and illuminate an area ahead of the vehicle body when it leans to one side.

Abstract: A headlamp in which a right elliptic reflecting surface and a left elliptic reflecting surface are provided on a position toward an upper front portion of the bulb, a right parabolic reflecting surface is provided on a position toward a right lower portion of said main reflecting surface, and a left parabolic reflecting surface is provided on a position toward a left lower portion of said main reflecting surface, whereby waste light can be recovered and used as irradiating light. A headlamp in which the elliptic reflecting surfaces which capture light emitted upwardly and forwardly from the bulb and parabolic reflecting surfaces which reflect said light in a desired direction are provided. A light-distribution varying means is provided in the optical path of the parabolic reflecting surfaces, whereby it becomes possible to switch between light distributions.

Abstract: A conventional projector headlamp has low efficiency because an amount of light is shaded almost half by a shutter for a low-beam light distribution. In addition, only a projection lens is seen in the installed condition, inviting old-fashioned designs disadvantageously. In a projector headlamp (1) of the invention, a vertical section passing through the center of a projection lens (5) includes a convex front surface and a flat rear surface (5a). A line connecting the upper end to the lower end on the rear surface (5a) is tilted to the vertical. Thus, the projection lens (5) has a prismatic action for directing the entire light downward. This is effective to reduce an amount of light to be shaded by a shutter (4) and provide improved brightness and novel designed appearances.

Abstract: A vehicle headlight can include a light source, first and second ellipse group reflecting surfaces having a focus corresponding to the light source, a first parabolic group reflecting surface with a focus on a second focus of the second ellipse group reflecting surface, and a second parabolic group reflecting surface with a focus corresponding to the position of the light source. A movable shutter can be provided with a shutter part and a shade part. When the shade part is placed in the light flux of the first ellipse group reflecting surface, the shade part shades the light flux irradiating from the light source to the second parabolic group reflecting surface. On the other hand, when the shutter part is withdrawn from the light flux, the second parabolic group reflecting surface can receive light.

Abstract: A vehicle lamp mounted on a vehicle body which can lean to one side at the time of turning, i.e., going around a curve, moving circularly, or the like. The lamp can include a first ellipse group reflecting surface having a movable part and an opening part, and a second ellipse group reflecting surface corresponding to an area covering a moving range of the opening part. The movable part of the first ellipse group reflecting surface can move by a drive unit to form a main light distribution that is kept in a substantially horizontal position. Light rays that pass through the opening part reach the second ellipse group reflecting surface and are reflected and illuminate an area ahead of the vehicle body when it leans to one side.

Abstract: A vehicle light can include a single light source and be capable of switching between low-beam mode and high-beam mode by moving a movable portion. The vehicle light can also include a first reflecting surface, a projection lens, and a shutter selectively insertable in the luminous flux from the first reflecting surface to the projection lens. The vehicle light can further include a second reflecting surface having a first focus and a second focus, a third reflecting surface having a first focus and second focus, a fourth reflecting surface having a focus approximately on the second focus of the second reflecting surface, wherein when the third reflecting surface is located in its inserted position relative to luminous flux between the second reflecting surface and the fourth reflecting surface, the first focus of the third reflecting surface is substantially on the second focus of the second reflecting surface. The movable portion can include the shutter and the third reflecting surface.

Abstract: A vehicle headlight can include a light source, first and second ellipse group reflecting surfaces having a focus corresponding to the light source, a first parabolic group reflecting surface with a focus on a second focus of the second ellipse group reflecting surface, and a second parabolic group reflecting surface with a focus corresponding to the position of the light source. A movable shutter can be provided with a shutter part and a shade part. When the shade part is placed in the light flux of the first ellipse group reflecting surface, the shade part shades the light flux irradiating from the light source to the second parabolic group reflecting surface. On the other hand, when the shutter part is withdrawn from the light flux, the second parabolic group reflecting surface can receive light.

Abstract: A projector type lamp can include a projection lens formed by combining together projection lens elements obtained by processing a plurality of projection lenses that can be substantially identical in optical axis center Z, focal length, and focal point, yet different in outer diameter. The projection lens can appear substantially rectangular when viewed in an optical axis direction. Boundary portions between the plurality of processed projection lens elements can be composed of a line connecting points of intersection between a contour line of the projection lens and a line defining a part of each unprocessed projection lens element at which thickness is substantially zero. The lens surfaces of the processed projection lens elements can be continuous with one another through stepped portions that are parallel to the optical axis of the projection lens.

Abstract: There has been a problem that in a head lamp with a prior constitution, an utilization factor of luminous flux with respect to a light source is low and the head lamp with brightness commensurate with power consumption can be obtained.

Abstract: A vehicle light can include a single light source and be capable of switching between low-beam mode and high-beam mode by moving a movable portion. The vehicle light can also include a first reflecting surface, a projection lens, and a shutter selectively insertable in the luminous flux from the first reflecting surface to the projection lens. The vehicle light can further include a second reflecting surface having a first focus and a second focus, a third reflecting surface having a first focus and second focus, a fourth reflecting surface having a focus approximately on the second focus of the second reflecting surface, wherein when the third reflecting surface is located in its inserted position relative to luminous flux between the second reflecting surface and the fourth reflecting surface, the first focus of the third reflecting surface is substantially on the second focus of the second reflecting surface. The movable portion can include the shutter and the third reflecting surface.

Abstract: A vehicle light can include a light source, a major reflecting surface, a projection lens, and a shutter. A first reflecting surface of an ellipse group reflecting surface preferably has a first focus on the light source and a second focus, capable of being inserted in or removed from an optical path from the light source to a second fixed reflecting surface. A first fixed reflecting surface of a parabolic group reflecting surface can include a focus on the second focus of the first reflecting surface, and at least two second reflecting surface elements. The second fixed reflecting surface can include a first focus on the light source and at least two third reflecting surface elements for reflecting light rays that have traveled an optical path from the light source thereto without being reflected by the first reflecting surface.