Robert Boschgmbh

Heike Eichler

Rainer Neumann

Henning Hogrefe

Doris Boebel

Johannes Bertling

Karl-Otto Dobler

Juergen Mueller

Thomas Kienzler

Martin Lampen

Ursula Bristle

Peter Kusserow

A headlight for a vehicle operating in a projection principle has a light source, a reflector reflecting a light emitted by the light source, a lens arranged in a course of light reflected by the reflector, a first shade device located between the reflector and the lens and changeable between at least one first condition for a first operational position of the headlight and at least one second condition for a second operational position of the headlight, the first shade device in the first condition screening a part of the light reflected by the reflector and producing a bright-dark limit of a light bundle exiting the headlight, and in the second condition screening at least only a smaller part of a light reflected by the reflector than in the first condition, and a further shade device arranged in a direction of an optical axis offset relative to the first shade device and changeable between at least one first condition and at least one second condition, the further shade device in the first condition screening a part of a light reflected by the reflector and passing on the first shade device in the first condition so as to reduce a maximum illumination intensity value produced by a light bundle exiting the headlight in the first operational position, the further shade device in the second condition screening at least only a smaller part of a light reflected by the reflector.

Vehicle protection-type headlamp with movable shade devices

A headlight for a vehicle has a reflector, a light source, a lens through which a light reflected by the reflector passes, at least one optical element which surrounds the lens, the optical element being formed as at least one ring-shaped lens element and together with the lens forming an optical unit in appearance.

Headlight for a vehicle

There is provided a vehicle headlight having a light emitter for emitting light and a reflector for reflecting light in a generally convergent manner. The headlight also includes a lens for passage therethrough of light reflected from the reflector. The vehicle headlight further includes a peripheral light enhancing member disposed relative to the lens for receiving at least a portion of the light exiting the headlight without passing through the lens, the peripheral light enhancing member generally following the trace of at least a portion of the outer periphery of the lens and forming a pass through portion through which light may pass substantially without alteration thereof, and the peripheral light enhancing member having the characteristic to permit at least a portion of the light emitted by the light emitter to pass therethrough and having the characteristic to permit at least a portion of light falling on the headlight from outside of the headlight to pass therethrough.

Vehicle headlight having predetermined light projecting characteristics

The headlight has a light source (12) which is mounted in a main reflector (10) by which a convergent light beam is reflected, which passes through a lens (16). An additional reflector (22) is arranged surrounding the main reflector (10) between the main reflector (10) and the lens (16), by which light not captured by the main reflector (10) is reflected as an additional light beam with horizontal scattering. The light beam passing through the lens (16) forms a low beam, by which a predetermined low beam light distribution is provided with an upper light-dark boundary. The additional light beam produces an additional uniform light distribution, which overlaps the low-beam light distribution. The headlight illuminates a larger surface than the surface of the lens (16) because of the additional reflector (22) surrounding the main reflector (10) and the lens (16) so that it causes no glare or blinding. The headlight can have a cover disk with a smooth surface without optical elements and thus a uniform appearance.

Headlight for a vehicle, especially a motor vehicle

A headlight for a vehicle has a reflector, a light source, a collecting lens arranged after the reflector in a light outlet direction so that light emitted by the light source is reflected as a converging light beam and the light beam exiting the headlight has an upper bright-dark limit, the reflector being formed so that images of the light source reflected by the reflector are located in an intermediate image plane which is perpendicular to an optical axis of the reflector in the region of a focal point of the collecting lens facing the reflector and above an imaginary line corresponding to a height and side running of the bright-dark limit.

Headlight for vehicle

The headlight has a gas discharge lamp and a reflector. The reflector has an upper reflector region and a lower reflector region. A lens is arranged after the reflector in a light outlet direction, and a screen device is provided between the reflector and the lens. A movable screen member of the screen device is adjustable between a position for low beam in which it screens light reflected from the lower reflector region and produces a bright-dark limit, and a position for high beam in which light reflected from the lower reflector region passes past the screen member and can exit the headlight. Moreover, the movable screen member in its position for low beam is adjustable between a position for right traffic and a position for left traffic. Therefore the head light can be used in a simple manner as a high beam head light and a low beam head light, and also can be converted for the utilization for right traffic and left traffic.

Headlight

The headlamp has a reflector (10) and a light source (12). Disposed in the ray path of the light reflected from the reflector (10) there is a lens (18), which is received in a mounting (20) and consists of an elastically deformable material. The lens (18) is acted upon by at least one control element (22), by which a force can be applied to the lens (18) in order to deform it. The light passing through the lens (18) is influenced, i.e. deflected in its direction. In the nondeformed state of the lens (18) the light beam radiating from the headlamp exhibits a first characteristic, i.e. direction and scatter, and in the deformed state of the lens (18) the light beam radiating from the headlamp, because of the then different optical effect of the lens (18), exhibits a different, second characteristic.

Vehicle headlamp

A headlight for a vehicle comprises a reflector. A light source having a light body. A shutter forming an upper bright-dark limit of a light bundle exiting the headlight. A lens arranged after the shutter is considered in a light outlet direction so that light reflected by the reflector passes through the lens. The reflector being formed so that light produced by the light body is reflected by the reflector so that it intersects an optical axis of the reflector and from the apex region of the reflector great images of the light body are reflected so that after passing through the lens they are arranged substantially close to the bright-dark limit. The reflector having a shape which is determined so that a distance along the optical axis between an apex point of the reflector on the optical axis and intersecting points of light rays reflected by the reflector with the optical axis starting from the apex region of the reflector to an edge region facing the apex region in the light outlet direction is changeable so that after passing through the lens at least approximately all images of the light body are arranged substantially close to the bright-dark limit.

A headlight for a vehicle has a light source, a reflector reflecting light emitted by the light source as a light bundle converging at least in horizontal longitudinal planes, the reflector having a front edge facing in a light outlet direction, and a dispersing lens arranged in the region of the front edge of the reflector so that the light bundle reflected by the reflector passes through the dispersing lens, the reflector and the dispersing lens having shapes which are such and so determined relative to one another that the light emitted by the light source after reflection on the reflector and passage through the dispersing lens forms a light intensity distribution sufficient for requirements corresponding to regulations.

Growing community of inventors

Reutlingen, Germany

Heike Eichler