Robert Bosch

Gerhard Lindae

Peter Perthus

Rainer Neumann

Richard Loewe

Heinz Rein

Karl-Heinrich Preis

Thomas Weigold

Kay Kolberg

Heinz Kretschmer

Christian Lietar

Jean-Francois Longchamp

Gerhard Glaser

Ernst Merkl

Eckhard Noelte

A headlamp for a power vehicle comprises a reflector having an apex, a light source arranged in the apex of the reflector, and a dimming device which is formed so that in a position for high beam it allows light from the light source to reach a lower reflector region or allows the light to exit the same, and in a position for low beam it keeps away light from said light source from the lower reflector region or blocks light reflected from the lower reflector region. The light source is formed as a gas discharge lamp with an axial light arc, an upper reflector region is formed for producing a light distribution for low beam while the lower reflector region is formed for producing a light distribution for high beam.

Headlamp for power vehicles

A headlamp for power vehicles comprises a reflector, a light source arranged in the reflector, the light source and the reflector being movable relative to one another so that in one position the light source is located close to a focal point of the reflector and in another position it is spaced from the focal point both along an optical axis and also vertically relative to the optical axis of the reflector.

Headlamp for power vehicle

A low beam headlamp for motor vehicles includes an objective made of pressed glass whose one side is formed as aspheric partial surfaces of identical or different aspherity. The partial surfaces are staggered in the direction parallel to the optical axis of the objective and the resulting step has rounded edges. The aspheric partial surfaces adjust light distribution to achieve a desired quality of the light-dark boundary zone projected on the driveway, and provide corrected color fringes of the passing light beam.

Low beam or fog headlamp for motor vehicles

The reflection surface of the reflector is composed of four segments depending on the low-beam light distribution pattern according to the ECE or SAE standard. For the ECE low-beam light distribution pattern, segment is part of a paraboloid of revolution; segment is a parellipsoid; reflector segment is a parellipsoid; and reflector segment is a general paraboloid. The various segments merge continuously and with smooth transitions with one another. For the SAE low-beam light distribution pattern, the reflector segment is a paraboloid of revolution; the reflector segment is a general paraboloid; the reflector segment is a paraboloid of revolution; and the reflector segment is a general paraboloid; in the SAE low-beam light distribution pattern as well, the reflector segments merge with one another continuously and with smooth transitions. The original beam of light produced by the various reflector surfaces of the reflector 1 is substantially equivalent to the low beam as allowed by law and that is suitable for the road surface, so that the dispersion plate can largely be dispensed with, or else can be inclined steeply or need have only a few optical devices.

Motor vehicle headlight

A dimmed headlight for a motor vehicle has a vertical center section defining an ellipse whose outer portion transits into an apex portion. The apex portion defines an inner focal point and an outer focal point and the upper elliptical portion defines a focal point coinciding with said inner focal point and a plurality of outer focal points located on the long axis of the ellipse behind the outer focal point of the apex portion when viewed in the direct of reflected light rays. An objective is arranged before the last one of the outer focal points to collect the reflected light rays. The lower part of the reflector contains a light reflecting member and a diaphragm extending transversely to the long axis in the outer focal point of the apex portion. The light reflecting member is oriented such as to reflect downwardly directed light rays from the light source against an upper part of the apex portion. In this manner, light intensity of reflected beam is increased and an improved illumination of the driveway before the vehicle is obtained.

Dimmed headlight, particularly for motor vehicles

In a headlight for antidazzle lamps for motor vehicles, a reflector and a shield or screen, and an objective form a light beam illuminating a roadway in accordance with law requirements. The lower portion of the reflector forms a paraboloid-ellipsoid-shaped section which generates an additional light beam below the screen and the objective. The additional light beam is received by horizontal scattering prisms on a transparent pane.

Headlight for antifog lamp for automotive vehicles

A headlight arrangement for vehicles, particularly for power vehicles, comprises a light source with a light reflector forming a light beam which illuminates a roadway with a predetermined light distribution, and at least one adjustable element for changing the light distribution.

Headlight arrangement for vehicles

The reflection surface of a rectangular reflector for a lower beam headlamp is composed of four sectors delimited by transition lines. Two diametrically opposed left and right sectors (11, 12) form a part of a paraboloid projecting a hot light spot. The diametrically opposed upper and lower sectors (13, 14) are part of a paraboloid-ellipsoid defining a parabola in its vertical center section and an ellipsis in its horizontal center section. The latter sectors project a light spot having a broad light dispersion and an increased front field illumination. The reflected light beam corresponds substantially to a dimmed lower light beam to be projected on the road so that a light dispersing glass of the headlamp does not require any optical means for light beam adjustment.

Antiglare headlamp particularly a rectangular reflector type headlamp

A headlight for dim head lamps of motor vehicles includes a paraboloid reflector which has a glowing spiral, and a transparent pane on the inner surface of which seven fields with differently acting optical means are provided. These fields reflect light rays emitted by the glowing spiral and reflected by predetermined zones of the reflector and form a dimming light.

Headlight for dim head lamps of motor vehicles

A low beam headlamp includes a reflector defining an optical axis and an incandescent filament forming a cylindrical coil whose central axis extends in a horizontal plane through the focal point and forms right angles with the optical axis. The light reflecting surface of the reflector is divided into six zones of which two lateral zones when viewed in the direction of the optical axis form together a paraboloid sector. The upper left hand wall portion and a lower right hand wall portion form together a second paraboloid sector whose central axis is inclined upwards relative to a central axis of the first paraboloid sector. An upper right hand wall portion and a lower left hand wall portion form together a composite paraboloid-ellipsoid sector whose sections taken in parallel vertical planes form parts of parabolas whereas sections taken in parallel horizontal planes form parts of ellipses. The projection of the resulting partial light beams provides a partially overlapping spot of concentrated light and two lateral flat partial beams.

Headlamp, particularly of rectangular configuration, for use as

A headlamp emitting dimmed or antidazzle light beam for motor vehicles, includes a paraboloid reflector including a transversely arranged coiled heating filament and a transparent grooved disc for diffusing or refracting light emitted by the reflector. The light means include eight light refracting fields arranged in diametrically opposed parts. Light rays passing through these fields are emitted from predetermined zones on the reflector so as to produce an improved light distribution of the low beam.

Headlamp, particularly antidazzle headlamp for motor vehicles

A cup-shaped reflector has a larger open end and a smaller open end. A diffuser glass closes off the larger open end. A lamp is comprised of a lamp bulb having a fused, squashed-flat rear portion hermetically sealing the interior of the bulb, with a plurality of lamp electrodes passing through the squashed-flat rear portion of the lamp bulb and embedded within the material of the squashed-flat rear portion of the lamp bulb. A plurality of lugs is provided, each connected to one of the lamp electrodes at the rear of the lamp, in electrically conductive engagement with the electrodes. A mounting arrangement mounts the lamp bulb on the reflector in the region of the smaller open end of the reflector with at least part of the lamp bulb projecting forwardly into the interior of the reflector.

Growing community of inventors

Leonberg, Germany

Gerhard Lindae