公开(公告)号：US11371671B2

公开(公告)日：2022-06-28

申请号：US16969789

申请日：2019-01-22

申请人： ZKW Group GmbH

发明人： Lukas Taudt ,  Nina Brauner ,  Mathias Schragl ,  Christoph Längauer

IPC分类号： F21S41/43 ,  F21S41/143 ,  F21S41/255 ,  F21S41/153 ,  F21S45/10 ,  F21Y115/10

摘要： The invention relates to a motor vehicle headlamp having a shielding screen (9) for shielding incident solar radiation, wherein the shielding screen is arranged between a lighting unit (2) having at least one light source (3), and a projection optics (8). Said shielding screen has a light outlet aperture for light radiated by the light unit to the front, wherein the light emitted by the lighting unit is projected into the traffic space as a light image by means of the projection optics, and the shielding screen is located outside the focal plane of the projection optics. On the border (13) of the light outlet aperture (10) of the shielding screen (9), deflective structures (14, 15, 16, 17, 18, 19) are formed, a least in some areas, which lead to a deflection of scattered light that is emanating from the lighting unit and is undesirable in the light image.

公开(公告)号：US11415289B2

公开(公告)日：2022-08-16

申请号：US15734528

申请日：2019-05-14

申请人： ZKW Group GmbH

发明人： Lukas Taudt ,  Nina Brauner ,  Mathias Schragl ,  Christoph Längauer ,  Johann Höfler

IPC分类号： F21S41/663 ,  F21S41/24 ,  F21S41/143 ,  F21S41/29 ,  F21Y115/00

摘要： The invention relates to an illumination device for a motor vehicle headlight, said illumination device comprising the following: —multiple light sources (10) which are designed to emit light beams in a main emission direction, —a primary optical system (100) having multiple light-guiding elements (110), said light-guiding elements (110) being arranged in the main emission direction of the light sources (10) and each having a light entry face (120) into which the light beams of the light sources can be fed, and a light exit face (130), the light-guiding elements (110) opening into a common light exit face (130), and—a holder (200) which is designed to hold the light entry faces (120) of the light-guiding elements (110) in position in relation to the light sources (10), the holder (200) having at least one latching element (210) formed with a latching tab (220) to fasten the primary optical system (100), the latching tab (220) being designed to engage in an undercut (140) associated with the latching tab (220) and provided on the primary optical system (100).

公开(公告)号：US11193641B2

公开(公告)日：2021-12-07

申请号：US16969364

申请日：2019-01-28

申请人： ZKW Group GmbH

发明人： Lukas Taudt ,  Nina Brauner ,  Josef Hechenberger ,  Matthias Kern ,  Christoph Längauer ,  Mathias Schragl

IPC分类号： F21S41/24 ,  F21S41/143 ,  F21S41/153 ,  F21V8/00

摘要： The invention relates to a motor vehicle headlight (1) having a lamp unit (2), which has at least one light source (3) and an optical attachment (4) having a light emission surface (5), and having a projection lens (7) downstream of the lamp unit, wherein the optical attachment has a plurality of waveguide elements (6), each having a light coupling surface (8) for feeding in light from the at least one light source and having light decoupling surfaces (9) 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 (10), from above by a roof surface (11) and below by a floor surface (12) 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 (12) and/or the roof surface (11) of at least one waveguide element (6) has exactly one constriction (14) in respect of the width thereof between the light decoupling surface (9) and the light coupling surface (8), which has the smallest width (bm) of the floor surface and/or of the roof surface.

公开(公告)号：US12123567B2

公开(公告)日：2024-10-22

申请号：US17918424

申请日：2021-03-17

申请人： ZKW Group GmbH

发明人： Christoph Längauer ,  Philipp Elsler ,  Hans-Jörg Riegler

IPC分类号： F21S41/675 ,  F21S41/32 ,  F21S41/39 ,  F21S45/47 ,  F21S45/49

CPC分类号： F21S41/675 ,  F21S41/32 ,  F21S41/39 ,  F21S45/47 ,  F21S45/49

摘要： A lighting device (1) for a motor vehicle headlamp, including an optoelectronic component (2), a cooling element (3), a circuit board (4), a stabilisation element (5) and a fastening element (6), wherein the stabilisation element (5) comprises an opening (5a) for enclosing the optoelectronic component (2), wherein at least two stabilisation arms (7) extend away from an edge of the opening (5a), which stabilisation arms (7) are equipped to act on the optoelectronic component (2), wherein the cooling element (3) contacts the optoelectronic component (2) on a side facing away from an active side of the optoelectronic component in such a manner that the same exerts a pressure on the optoelectronic component (2) acting in the direction of the active side of the optoelectronic component (2), wherein the at least two stabilisation arms (7) are designed resiliently and act on the active side of the optoelectronic component (2) in such a manner that the at least two stabilisation arms (7) counteract this pressure of the cooling element (3).

公开(公告)号：US20210231283A1

公开(公告)日：2021-07-29

申请号：US15734528

申请日：2019-05-14

申请人： ZKW Group GmbH

发明人： Lukas Taudt ,  Nina Brauner ,  Mathias Schragl ,  Christoph Längauer ,  Johann Höfler

IPC分类号： F21S41/663 ,  F21S41/143 ,  F21S41/24 ,  F21S41/29

摘要： The invention relates to an illumination device for a motor vehicle headlight, said illumination device comprising the following: —multiple light sources (10) which are designed to emit light beams in a main emission direction, —a primary optical system (100) having multiple light-guiding elements (110), said light-guiding elements (110) being arranged in the main emission direction of the light sources (10) and each having a light entry face (120) into which the light beams of the light sources can be fed, and a light exit face (130), the light-guiding elements (110) opening into a common light exit face (130), and —a holder (200) which is designed to hold the light entry faces (120) of the light-guiding elements (110) in position in relation to the light sources (10), the holder (200) having at least one latching element (210) formed with a latching tab (220) to fasten the primary optical system (100), the latching tab (220) being designed to engage in an undercut (140) associated with the latching tab (220) and provided on the primary optical system (100).