Zkw Group Gmbh

Molto Luce Gmbh

Josef Hechenberger

Bernhard Mandl

Lukas Taudt

Jürgen Zorn

Nina Brauner

Christoph Längauer

Mathias Schragl

Wolfgang Brunmayr

Matthias Kern

Stephan Arlinghaus

Riepl Kevin

Florian Kronberger

Kevin Riepl

The invention relates to a lamp unit () for a motor-vehicle lighting device, comprising: a dipped-beam module (), a main-beam module (), an imaging optical element () connected downstream of the dipped-beam module () and the main-beam module (), having an optical axis () and a focal surface () orientated normal to the optical axis (), and a diaphragm (), which has a diaphragm edge () and extends essentially up to the focal surface () of the imaging optical element () for generating the horizontal cut-off line in a light image generated by the lamp unit (), wherein the diaphragm () has an opaque diaphragm region () and has a transparent diaphragm region () with a geometric structure () made from a transparent material at the diaphragm edge () in the region of the focal surface (), the geometric structure () has at least one prism body () with a triangular cross-sectional area, which is elongated and the longitudinal extent runs substantially transversely to the optical axis (), the at least one prism body () has a first, a second and a third prism surface, the second prism surface () encloses an internal angle &#x3b1;1&#x2265;&#x3b8; with the first prism surface (), and the third prism surface () encloses an internal angle &#x3b1;2&#x2265;&#x3b8; with the first prism surface (), wherein &#x3b8; is the critical angle of total internal reflection of the transparent material, the internal angles &#x3b1;1 and &#x3b1;2 are the same or different, and with the proviso that the internal angle &#x3b1;1 or the internal angle &#x3b1;2 is not 45&#xb0;.

Light unit for a motor vehicle headlamp

The invention relates to a motor vehicle headlamp () containing an ellipsoid reflector (), which allows light coupled in from a light source () to exit through a reflector light exit opening (), a collimator () and a projection optical unit (). The collimator () is designed to collimate the incident light beam coming from the ellipsoid reflector () and to direct the same toward a first image plane (). The projection optical unit () projects a light image produced by the light beam in the emission direction of the motor vehicle headlamp () in accordance with a second image plane () of the projection optical unit (). The first image plane () and the second image plane () intersect or overlap with one another. In the beam path of the light beam, an optical element () having at least one optically active edge () is arranged between the collimator () and the projection optical unit () in such a way that the first and/or second image plane () runs through the optical element (), in Order to mask a part of the light beam and to guide another part to the projection optical unit ().

Motor vehicle headlamp having an ellipsoid reflector and a collimator

The invention relates to a motor vehicle headlight () having a lamp unit (), which has at least one light source () and an optical attachment () having a light emission surface (), and having a projection lens () downstream of the lamp unit, wherein the optical attachment has a plurality of waveguide elements (), each having a light coupling surface () for feeding in light from the at least one light source and having light decoupling surfaces () arranged in the light emission surface of the optical attachment and projects a light pattern forward in the traffic space, the waveguide elements extend between the light coupling surface and the light decoupling surface, wherein the light decoupling surface has a greater area than the light coupling surface, and each waveguide element is laterally delimited by two lateral surfaces (), from above by a roof surface () and below by a floor surface () and tapers between the light decoupling surface and the light coupling surface, wherein the width of the floor surface decreases proceeding from the light emission surface, wherein the floor surface () and/or the roof surface () of at least one waveguide element () has exactly one constriction () in respect of the width thereof between the light decoupling surface () and the light coupling surface (), which has the smallest width (b) of the floor surface and/or of the roof surface.

Motor vehicle headlight having waveguide elements arranged in matrix form

The invention relates to a lighting device for a motor vehicle headlamp, comprising a primary optical element () which is arranged in the main beam direction of a first light fixture () and which has a light coupling-in surface () for coupling in light into the primary optical element (), a light coupling-out surface () as well as a lateral surface which extends between the light coupling-in surface () and the light coupling-out surface () and on which the light coupled in can be relayed by total reflection in the direction of the light coupling-out surface () of the primary optical element (), a secondary optical element () which is arranged after the light coupling-out surface () of the primary optical element () and which has a light coupling-in surface () and a light coupling-out surface (), and an arranged reflector (), the secondary optical element () being designed as part of a quadric, the secondary optical element () being configured to guide the light beams on the reflector () by means of refraction or let the light beams pass without a change of direction during coupling, which light beams are emitted by the first light fixture () and reach the light coupling-out surface () of the secondary optical element ().

Lighting device for a motor vehicle headlight

Growing community of inventors

Mondsee, Austria

Josef Hechenberger