DE102004020493B4 - Light distribution assembly with a variety of modules - Google Patents

Abstract

Light distribution assembly, in particular for motor vehicle headlights and lights, which comprises a plurality of modules (100-104), - the individual module (100-104) in a heat-conducting support element (10) a light source (1) and at least one downstream optical element ( 50, 70), - the modules (100-104) being articulated in or on a base component (120, 130) or a base group (140) - with at least one degree of freedom - or rigidly mounted, - the modules (100- 104) are grouped together, and - the modules (100-104) of at least one group (106-108) in at least one operating state have at least approximately parallel optical axes (9), characterized in that the light source (1) has an LED ( 1), which is arranged on a board (80) and consists of a light exit body (3) and a base (4), and to improve the cooling effect of the individual module (100-104) additional rü rearward projecting heat sinks are provided as heat conducting elements (90), in such a way that a ...

Description

The invention relates to a light distribution assembly, in particular for motor vehicle headlights and lights, comprising a plurality of modules, wherein the individual module has at least one light source and at least one downstream optical element.

From the US 6,250,774 B1 Such an assembly is known as part of a headlamp. Within this module modules are used, each using a funnel-shaped, closed tube as a supporting element, which also serves as a reflector. In the narrowest tube area is located as a light source, a light emitting diode, while a lens is arranged in the wider tube area. The support element is made of a plastic. During operation of the module, heat build-up leads to component distortion and thus to a changed imaging behavior of the headlight.

The present invention is therefore based on the problem to develop a modular light distribution assembly, in which the optical elements to separate modules combined by the type of storage produce a permanently repeatable rigid or specifically variable light cone geometry.

This problem is solved with the features of the main claim. For this purpose, the modules used in the light distribution assembly in or on a base member or a base group are articulated - with at least one degree of freedom - or rigidly mounted. The modules are grouped together in groups. The modules of at least one group have at least approximately parallel optical axes in at least one operating state.

Such a light distribution assembly is, for example, part of a conventional two-car body system for motor vehicles. The latter is a lamp that can produce the low beam and high beam. For this purpose, modules are used in the light distribution group as part of a headlamp or a lamp. As a light source per module in this case, for example, a discrete luminescence diode, board-integrated chip-on-board LED, a laser diode, luminescent film or other cold light sources with comparable light intensity is used. Other light sources are also conceivable.

The light distribution module can, for. B. also be used in reversing lights, tail lights, brake lights rear fog lights and other similar lights.

For the necessary asymmetry of the radiated low beam and high beam provide secondary lenses arranged in the individual modules, which are usually designed differently from module to module. To switch between dipped beam and high beam, for example, different module groups are activated. The modules can be combined in almost any arrangement for the particular application. You can z. Example, line by line, columns, in line and column-oriented fields, be arranged in closed, oval, elliptical or circular rings and along multiple curved paths. The modules can be assembled to any light band or light field type. Also, the modular shape in terms of size and cross-sectional shape are virtually no limits geometrically.

The light source of the single module generates waste heat in the chip or light source environment, which is dissipated via separate cooling surfaces. In the present case, the heat generated per module in a designed as a heat sink, the optical elements bearing support element is coupled and delivered there to the immediate ambient air within the headlight housing. Furthermore, the cooling effect of the individual module by additional rearwardly projecting, z. B. reinforced angular heat sink.

Within the single module, the support element u. a. the function to store all the light source in the beam path downstream optical elements precisely, possibly without separate fasteners. The optical elements are z. As lenses, prisms, mirrors, reflectors, apertures, diffraction gratings and the like.

Further details of the invention will become apparent from the dependent claims and the following description of schematically illustrated embodiments.

1 : Front view of a headlamp;

2 : Vertical cross section to 1 ;

3 : Horizontal cross section to 1 ;

4 : Supporting element in dimetric view;

5 : Module in a longitudinal section;

6 : Vertical cross-section through two modules installed in a rigid base member;

7 : Front view of a rigid base module;

8th : View of a first intermediate wall of the rigid base component;

9 : View of a second intermediate wall of the rigid base component;

10 : Basic module with pivotally arranged modules positioned in neutral position;

11 : as 10 , but with pivoted modules;

12 : Module group with modules that are pivotable about a horizontal and vertical axis;

13 : Module group with flexible metal core board; Vertical axes are pivotable;

14 : coupled modules in longitudinal section.

The 1 to 3 show an example of a right headlight of a passenger car in the front view. In the headlight are in a housing ( 111 ) three groups ( 106 - 108 ) of modules ( 100 - 102 ) stored. A middle group ( 106 ) represents the dipped beam, while the outer groups ( 107 . 108 ) make the high beam.

The module ( 100 - 104 ) as such serves the mutual positioning of a light source ( 1 ) and z. B. two downstream lenses ( 50 . 70 ) in a one-piece housing ( 10 ) or support element. The support element ( 10 ) itself is possibly mechanically centered in the embodiments according to the 1 - 3 and 10 - 13 possibly in groups on a base component ( 120 ) z. B. in the form of a metal core board ( 121 - 123 ; 141 ). According to the 6 - 9 plug the modules ( 100 - 104 ) in a clamping frame ( 130 ).

The central component of a module is the light source as the LED ( 1 ), see. 6 and 7 , It consists, regardless of their electrical components with respect to their housing form of a light exit body ( 3 ) and a socket ( 4 ). The light exit body ( 3 ) has, in a first approximation, a hemispherical shape. The base (below) 4 ) whose height is lower than the height of the light exit body ( 3 ) is a substantially square plate with four chamfered corners. In two diagonally opposite chamfers ( 5 ) are positioning notches ( 6 ) arranged. The positioning notches ( 6 ) each have a semicircular cross section, wherein the individual centers of these cross sections on the edge of the respective chamfer ( 5 ) lie. The light-emitting chip ( 2 ) sits with respect to its geometric position z. B. in the lower region of the light exit body ( 3 ) near the base ( 4 ).

To this pedestal ( 4 ) of the LED ( 1 ) around is z. B. a heat conducting body ( 90 ) on the board ( 80 ) arranged. This body ( 90 ) whose height is lower than that of the base ( 4 ), surrounds with its central recess the LED socket ( 4 ) with little play. He sticks to the metal core board ( 80 ) z. B. by means of a thermal paste.

The support element ( 10 ) of the embodiment is a thin-walled z. B. made of an iron or non-ferrous metal material body, see. 4 , Possibly. the material is a tempered spring steel. He is here a sheet metal part that forms a cuboid enveloping body after punching, edges and embossing, which lacks a side surface and an end face. The missing face is opposite to a floor ( 11 ), while the missing side face towards the 4 in the foreground Längsseitenwandung ( 21 ) lies.

The floor ( 11 ) has a central recess ( 12 ), into the two positioning lugs ( 13 ) protrude radially. The front areas of these positioning lugs have a contour that fits exactly into the positioning notches ( 6 ) of the LED ( 1 ) fit. Around the central recess ( 12 ) around are z. B. three smaller Kodierausnehmungen ( 14 ). The center of the central recess ( 12 ) lies on a module axis ( 9 ), see. 6 parallel to the side walls ( 21 . 22 . 31 . 32 ) is oriented. The module axis ( 9 ) is also the optical axis of the module. She cuts the chip ( 2 ) of the LED ( 1 For example, in the middle.

At the to the Querseitenwandungen ( 31 . 32 ) aligned edges of the soil ( 11 ) are each bending tongues ( 18 ).

The longitudinal side wall ( 21 ) and the laterally adjoining Querseitenwandungen ( 31 . 32 ) have in the area of the open front side edges, one to the ground ( 11 ) parallel plane ( 19 ), cf. 5 , The in this level ( 19 ) serve as a stop for a secondary lens ( 70 ).

All three walls ( 21 . 31 . 32 ) bear near the in the plane ( 19 edges inwardly directed beads ( 29 . 39 ). The crests of the beads ( 29 . 39 ) are all in one to the level ( 19 ) parallel plane. Instead of the elongated, straight beads ( 29 . 39 ) can also be used nubs.

In each transverse sidewall ( 31 . 32 ) is a leaf spring tongue ( 35 . 36 ) substantially parallel to the module axis ( 9 ) is oriented. Each leaf spring tongue ( 35 . 36 ) has at its free end an inwardly directed latching hook ( 37 ). The locking hooks ( 37 ) are each between two beads ( 39 ). Both transverse side walls ( 31 . 32 ) have in their lower end near the area Longitudinal edges ( 33 . 34 ) one to the ground ( 11 ) oriented tongue indentation ( 41 ). Both transverse side walls ( 31 . 32 ) have opposite the module axis ( 9 ) the same distance.

The transverse side wall ( 31 ) has to the Längsseitenwandung ( 21 ) in addition a support indentation ( 42 ) and in the region of the recess ( 46 ) a bending tab ( 45 ). The bending tab ( 45 ) stands over the edge of the support indentation ( 42 ) or over the lower edge of the Querseitenwandung ( 31 ) at least twice the wall thickness of the metal core board ( 121 . 122 ) above.

In this bending pocket ( 45 ) opposite edge of Querseitenwandung ( 31 ) is located next to the leaf spring tongue ( 35 ) as well as above the adjacent bead ( 39 ) a coding notch ( 49 ). The coding notch ( 49 ) has a nearly rectangular contour.

The other transverse side wall ( 32 ) in the field of tongue indentation ( 41 ) in addition a bending tab ( 45 ) with a recess ( 46 ). This tongue indentation ( 41 ) also has the function of a support indentation here. Both tongue impressions ( 41 ) have some millimeters above the edge of the support indentation ( 42 ) a mounting slot ( 47 ) for receiving the bending tongues ( 18 ) of the soil ( 11 ). In the finished shaped support element ( 10 ) these bending tongues ( 18 ) bent by about 90 degrees to the transverse side walls ( 31 . 32 ) with the ground ( 11 ) positively and non-positively to connect play. Alternatively, the walls and the floor ( 11 ) z. B. by welding, gluing or a rivet embossing process such as the Toxfügen be joined together.

In the longitudinal side wall ( 21 ) is also a leaf spring tongue ( 25 ). This leaf spring tongue ( 25 ) is z. B. bent by 15 degrees inwards, see. 5 , Your free end is to the ground ( 11 ) and carries an outwardly curved support hook ( 27 ). It has in the side view, see. 3 , a trapezoidal, symmetrical contour.

Opposite the longitudinal side wall ( 21 ) there is a support tab ( 22 ) parallel to the longitudinal side wall ( 21 ) is aligned. It has to module axis ( 9 ) the same distance as the longitudinal side wall ( 21 ). In the support strap ( 22 ) is also a leaf spring tongue ( 26 ) arranged. This one has to leaf spring tongue ( 25 ) identical construction and the same distance from the ground ( 11 ). For the modules ( 100 - 104 ), in which the support tabs ( 22 ) form the module group boundary, if necessary between the ground ( 11 ) and the secondary lens ( 70 . 170 ) arranged separate bulkheads to prevent stray light. Such foreclosure plates are z. B. attached to the support tab.

To all leaf spring tongues ( 25 . 26 . 35 . 36 ) around is with the exception of the construction-related connection or joint points each have a free space whose width is at least 0.5 millimeters. In the finished state is no tongue ( 18 ) or leaf spring tab on an imaginary cuboid shell over which by the side walls ( 21 . 22 . 31 . 32 ) is stretched.

Regardless of the Hüllkörperform and the location of abutment edges and leaf spring tongues all side walls can be performed over the entire surface or be designed by many small or few large breakthroughs more or less filigree. In extreme cases, the support element ( 10 ) a grid construction with integrated heat sinks and fasteners for supporting the optical elements ( 50 . 70 ).

In the 5 and 6 is the case ( 10 ) with built-in lenses ( 50 . 70 ). Immediately on the ground ( 11 ) sits the primary lens ( 50 ). The latter consists of a concave-convex lens body ( 51 ) and a lens base ( 61 ), see. 7 and 14 , In 7 is for this purpose for better visibility of details on the support element shown above ( 10 ) the leaf spring tongue ( 25 ) omitted. The lens base ( 61 ) has a central base recess ( 64 ) whose bottom surface is the light source-near concave lens surface ( 52 ). At the edge of the base recess ( 64 ) there are three positioning pins ( 62 ) with an at least partially conical outer contour. Their center lines run parallel to the module axis ( 9 ). About these positioning pins ( 62 ) sits the primary lens ( 51 ) precisely in the coding recesses ( 14 ) of the soil ( 11 ). The lens base ( 61 ) has around the positioning pins ( 62 ) around a cylindrical bearing elevation ( 63 ). By the latter sits the primary lens ( 50 ) at a distance on the ground ( 11 ) on.

On top of the lens base ( 61 ) are located next to the light-remote, convex lens surface ( 53 ), the light exit side of the primary lens ( 51 ), two opposing saddle elements ( 66 ). Each saddle element ( 66 ) has a saddle surface ( 67 ) and a support edge ( 68 ). The support edge ( 68 ) stands over the saddle surface ( 67 ) above. On the individual saddle surface ( 67 ) comes with the module mounted the respective support hook ( 27 ) of the resilient leaf spring tongue ( 25 . 26 ) to the plant. Since the saddle surface ( 67 ) to the module axis ( 9 ) z. B. rises at an angle of about 15 °, the support hook ( 27 ) on an inclined plane, without in Federwegrichtung on the support edge ( 68 ) to strike.

The light source remote, convex lens surface ( 53 ) is after 1 and 7 in at least two differently curved lens surface areas ( 55 . 56 ) divided up.

For mounting the primary lens ( 50 ) This z. B. along the module axis ( 9 ) in the support element ( 10 ) and on the rebounding leaf spring tongues ( 25 . 26 ) past the coding recesses ( 14 ) used. Once the - a common three-point circulation forming - Lagerstellenerhöhungen ( 63 ) on the ground ( 11 ), the support hooks ( 27 ) of the resilient leaf spring tongues ( 25 . 26 ) on the saddle surfaces ( 67 ) of the primary lens ( 50 ) taken their non-positive clamping position.

In the embodiment sits - of the LED ( 1 ) - behind the primary lens ( 50 ) an at least partially biconvex secondary lens ( 70 ). The latter has in the installed state in a parallel to the ground ( 11 ) aligned cut surface has a rectangular cross-section, cf. 5 and 6 , The maximum extent of this cross section corresponds to the cross section of the imaginary Hüllflächenkörpers. After the 5 and 6 is the light source near the lens surface ( 72 ) convexly curved. The light source remote lens surface ( 73 ) is here of two curved lens surface areas ( 75 . 76 ).

In the in 5 plotted level ( 19 ) has the secondary lens ( 70 ) in cross-section a paragraph over which they on the upper edges of the side walls ( 21 ; 31 . 32 ) rests. Below the level ( 19 ) the secondary lens tapers ( 70 ) z. B. linear at an angle of about 2 degrees. About these tapered side walls is the secondary lens ( 70 ) on the beads ( 29 . 39 ) of the side walls ( 21 . 31 . 32 ) at. According to 6 has the lens ( 70 ) each in the central region of the shorter side walls a groove-shaped recess ( 77 ) with trapezoidal cross-section. In the latter, the latch hook ( 37 ) of the corresponding leaf spring tongue ( 35 . 36 ) springs. Again, the latch hook couples ( 37 ) the Lens ( 70 ) with the support element ( 10 ) positive and positive.

Of course, the optical elements ( 50 . 70 ) also by means of other connection techniques on the support element ( 10 ), z. B. by gluing, folding, screws, etc.

On one of the shorter side walls, the secondary lens ( 70 ) a nose, the form-fitting in the coding notch ( 49 ) of the transverse side wall ( 31 ), cf. 4 ,

Possibly. are all side walls of the secondary lens ( 70 ) with an opaque layer, e.g. As a paint, coated to prevent lateral leakage of stray light. Possibly. the stray light can also be separated by a light source ( 1 ) and the primary ( 50 ) or secondary lens ( 70 ) arranged shade are shaded.

That with the lenses ( 50 . 70 ) equipped supporting element ( 10 ) is on the with the LED ( 1 ) equipped metal core board ( 121 . 122 ). For exact positioning, the ground is centered ( 11 ) of the support element ( 10 ) via the positioning lugs ( 13 ) at the positioning notches ( 6 ) of the LED socket ( 4 ). In this case, the LED ( 1 ) z. B. by screwing, riveting, welding, gluing, etc. fixed on the board. After the ground ( 11 ) has reached his final position, he lies at the z. B. heat-conductive paste coated heat sink ( 90 ) over the entire surface. The bending tabs ( 45 ) are now in corresponding slots of the boards ( 121 . 122 ). There are the on the respective metal core board ( 121 . 122 ) projecting Biegelaschenanschnitte permanently fixed by bending.

To form a low beam sit after 1 z. B. 19 modules ( 100 - 104 ) of different size on the here octagonal metal core board ( 121 ). 15 modules ( 101 . 102 ) form a rectangular block of three rows and five columns in the middle. The modules arranged in the center ( 102 ) have the maximum length. The modules arranged directly around them ( 101 ) are about 13% shorter, cf. 2 and 3 , To the right and left of this block are two superimposed modules ( 100 ), the z. B. are 26% shorter than the long modules ( 102 ).

Right and left of the low beam are the modules ( 100 ) on the boards ( 122 . 123 ) as high beam groups ( 108 ) and ( 107 ) arranged. Here, a larger three-line and two-column block is combined with a two-line, one-column block. To 3 are the boards ( 122 . 123 ) to each other and to the board ( 121 ) staggered in Fahrzeuglangsrichtung deep. The group ( 107 ) is opposite the Abblendgruppe ( 106 ) arranged offset to the vehicle center. The offset in the vehicle longitudinal direction is for example about a module length. The high beam group ( 108 ) is opposite the Abblendgruppe ( 106 ) positioned so far back that, for example, the secondary lenses ( 70 ) at the height of the metal core board ( 121 ) lie.

In the group ( 108 ) is next to the three-line and two-column block a turn signal module ( 104 ) arranged. This module ( 104 ) has, for example, twice the height and stores another LED and possibly other lenses. The main radiation direction of this module ( 104 ) is with respect to the representation after 3 oriented to the right outside.

After the 2 and 3 is at least the metal core board ( 121 ) via a swivel joint bearing ( 125 ) with at least approximately horizontal axis on the headlight housing ( 111 ) stored. One on the housing ( 111 ) supported actuator ( 126 ) causes by a retraction or extension of its spindle a change in inclination of the modules ( 100 - 104 ).

In 2 is above the actuator ( 126 ) only by way of example a cooling element ( 115 ). The in the case ( 111 ) projecting cooling fins ( 117 ) couple over the outer cooling fins ( 116 ) which among other things of the chips ( 2 ) over the supporting elements ( 10 ) emitted heat to the outside.

In 13 are the modules ( 100 - 103 ) of the dimming group ( 106 ) on a flexible board ( 124 ) assembled. The board ( 124 ) is in its left edge area via a board store ( 128 ) rigidly on the housing ( 111 ) attached. The on the housing ( 111 ) articulated actuator ( 126 ) deformed z. B. when cornering the board from a plan neutral position in the illustrated curved shape. This fanned the individual main light directions or the optical axes ( 9 ) so that only changes, for example, a modified curve illumination. The fan angles can be determined by different elastic zones in the board ( 124 ), by wall thickness differences of the board ( 124 ) or be achieved by another transmission linkage.

Alternatively, the cornering light can also be effected by group-wise pivoting of the individual modules, cf. 10 to 12 , For this the modules sit ( 100 - 102 ) in a pivot bearing unit ( 140 ) one above the other on strip-shaped circuit boards ( 141 ). The latter carry at the back pivot bearings ( 143 ). The individual pivot bearings ( 143 ) each sit in one on the housing ( 111 ) fixed bearing block ( 142 ). The individual boards ( 141 ) are each equipped with a lever ( 144 ) fitted. The levers ( 144 ) are via a coupling rod ( 145 ) mechanically coupled together. An actuator ( 146 ), see. 12 , Adjusted the coupling rod in the embodiment, at least approximately transverse to the direction of travel and normal to the road.

Depending on the configuration of the lever mechanism ( 144 . 145 ), the modules ( 100 - 102 ) are also pivoted so that each optical axis ( 9 ) occupies a different angle relative to the direction of travel.

The pivot bearing unit ( 140 ) is after 12 via a pivot bearing ( 125 ) and another actuator ( 126 ) on the housing ( 111 ), so that the module group can be pivoted as a whole about the horizontal axis for headlamp leveling.

With the in the 6 to 9 illustrated clamping frame ( 130 ) the modules ( 100 - 104 ) stored rigidly as a group. The grid-like, made of a metal sheet, clamping frame ( 130 ) consists, for example, of three longitudinal members ( 131 - 133 ) and several transverse webs ( 134 . 135 ). The side members ( 131 - 133 ) and transverse webs ( 134 . 135 ) can be equipped with corresponding recesses to save weight. The crossbars ( 134 . 135 ) have after the 8th and 9 two bending tongues at the top and bottom ( 137 ), which engage in corresponding slots of the longitudinal members ( 131 . 132 ) fit. For mutual fixation of the parts ( 131 ) to ( 135 ), the bending tongues ( 137 ) bent by 90 degrees or twisted by approximately 90 degrees in the tongue longitudinal direction.

In the middle area have the, z. B. identical cross member ( 134 ) and ( 135 ) on both sides paragraphs ( 136 ). At these paragraphs is the middle side member ( 133 ) at. For penetration with the cross member ( 134 . 135 ), the side member ( 133 ) a corresponding to the narrower cross-section of the cross member ( 134 . 135 ) adapted slot.

The middle side member ( 133 ) is a flat plate, while the longitudinal members ( 131 . 132 ) are profiled to increase the clamping frame form rigidity. Into the free spaces of the clamping frame ( 130 ), the assembled modules ( 100 - 104 ) over the support frames ( 10 ) plugged in. For a precise position within the clamping frame ( 130 ), the support frames ( 10 ) in the transverse side walls ( 31 . 32 ) special stop lugs ( 38 ). With the latter, they lie on the middle side member ( 133 ), cf. 6 , With comparable lugs or the like, the support frame and the rear edge of the longitudinal member ( 133 ) behind. Possibly. the support frames ( 10 ) also in the clamping frame ( 130 ) glued or anchored in any other way.

To 6 are the LEDs ( 1 ) with the boards carrying them ( 80 ) together with the Wärmeleitkörpern ( 90 ) on the positioning pin ( 62 ) of the primary lens ( 50 ) centered and over the retaining tongues ( 17 ) on the ground ( 11 ) fixed. The electrically through-contacted boards ( 80 ) are interconnected with a foil conductor ( 85 ) electrically connected.

With the 14 another possibility of group formation is shown. Here are the supporting elements ( 10 ) of the modules ( 100 - 104 ) at their Längsseitenwandungen ( 21 ) with coupling tongues ( 23 . 24 ) and stop lugs ( 28 ) fitted. The coupling tongue ( 23 ) encompasses when mating two support elements ( 10 ) the support tab ( 22 ) of the respectively adjacent support element ( 10 ) at the front edge. At this edge comes the stop lug ( 28 ) to the plant. The coupling tongue ( 24 ) accesses a not shown here Recess of the adjacent support tab ( 22 ). At least part of the coupling tongues ( 23 . 24 ) can be equipped with latching elements, which in corresponding recesses or depressions of the respective neighboring support element ( 10 ) engage in order to have a form-fitting in addition to the non-positive connection. Possibly. more than two coupling tongues ( 23 . 24 ) per support element ( 10 ) used.

As drives ( 126 . 146 ) for the pivoting movement can be used on the one hand linear drives, such as electrically operated spindle drives or solenoids or comparable linear motors and piezo blocks. For particularly lightweight modules alternatively the pivot joints can be formed as a film hinges, for this purpose z. B. memory metals are used.

LIST OF REFERENCE NUMBERS

1

Light source, light emitting diode

2

chip

3

Light emitting body

4

base

5

chamfer

6

positioning notches

8th

main radiation

9

Module axis, optical axis

10

Support element, housing

11

ground

12

Recess, central

13

locating lugs

14

Kodierungsausnehmungen

17

holding tongues

18

bending tongues

19

level

21

Longitudinal side wall, full surface

22

Längsseitenwandung, part of the area; support tab

23, 24

coupling tongues

25, 26

Leaf spring tongues

27

support hooks

28

stop lug

29

beading

31

transverse side wall

32

transverse side wall

33, 34

longitudinal edge

35, 36

Leaf spring tongues

37

latch hook

38

stop dogs

39

beading

41

Zungeneindrückung

42

Stützeindrückung

45

bending lug

46

Laschenausnehmung

47

mounting slots

49

Kodierkerbe

50

optical element, primary; lens

51

Lens body, concave convex, asymmetrical

52

Lens surface, near light source

53

Lens surface, remote light sources

55, 56

Lens surface areas

61

lens base

62

positioning

63

Bearings increase

64

base recess

66

saddle member

67

saddle surface

68

supporting edge

70

optical element, secondary; lens

71

Lens body, biconvex per section

72

Lens surface, near the light source

73

Lens surface, remote light sources

75, 76

Lens surface areas

77

recess

79

apron

80

circuit board

85

Flexible flat cable

90

thermal conductors

100

Module, in short

101

Module, medium length

102

Module, long

104

Flashing module, flashing light

106

Abblendgruppe

107, 108

High beam groups

111

headlamp housing

112

diffuser

115

cooling element

116

Cooling fins, outside

117

Cooling ribs, inside

120

basic component

121

Metal core board for dipped beam, basic component,

122, 123

Metal core boards for high beam, base components

124

Board, flexible; basic components

125

Swivel joint bearing for ( 121 )

126

Actuator for height adjustment

127

Housing storage for ( 126 )

128

PCB storage at ( 111 )

130

Basic component, clamping frame

131

Carrier, below

132

Carrier, above

133

Carrier, middle

134, 135

crossbars

136

paragraphs

137

bending tongues

140

Basic module, pivot bearing unit

141

Board, metal core board

142

bearing block

143

pivot bearing

144

actuating lever

145

coupling rod

146

actuator

Claims (10)

Light distribution assembly, in particular for motor vehicle headlights and lights, comprising a plurality of modules ( 100 - 104 ), the individual module ( 100 - 104 ) in a heat-conducting support element ( 10 ) a light source ( 1 ) and at least one downstream optical element ( 50 . 70 ), the modules ( 100 - 104 ) in or on a base component ( 120 . 130 ) or a base group ( 140 ) articulated - with at least one degree of freedom - or are rigidly mounted, - wherein the modules ( 100 - 104 ) are grouped together, and - where the modules ( 100 - 104 ) at least one group ( 106 - 108 ) in at least one operating state at least approximately parallel optical axes ( 9 ), characterized in that the light source ( 1 ) an LED ( 1 ), which is on a board ( 80 ) is arranged and from a light exit body ( 3 ) and a socket ( 4 ) and to improve the cooling effect of the individual module ( 100 - 104 ) additional rearwardly projecting heat sink as Wärmeleitkörper ( 90 ) are provided in such a way that around the base ( 4 ) a heat conducting body ( 90 ) on the board ( 80 ) is arranged so that a central recess of the heat conducting body ( 90 ) the base ( 4 ) surrounds. Light distribution assembly according to claim 1, characterized in that the modules ( 100 - 104 ) of a group ( 106 - 108 ) have different lengths within the group. Light distribution assembly according to claim 1, characterized in that at least the modules ( 100 - 104 ) of a group ( 106 - 108 ) have uniform light exit cross sections. Light distribution assembly according to claim 1, characterized in that the modules ( 100 - 104 ) of a group ( 106 - 108 ) or different groups different optical elements ( 50 . 70 ) exhibit. Light distribution assembly according to claim 1, characterized in that within a module group ( 108 ) a turn signal module ( 104 ) is integrated. Light distribution assembly according to claim 1, characterized in that the light sources ( 1 ) of the individual modules ( 100 - 104 ) Light-emitting chips ( 2 ) are comprehensive light-emitting diodes. Light distribution assembly according to claim 6, characterized in that the chips ( 2 ) of the light sources ( 1 ) of several modules ( 100 - 104 ) are integrated in a common current-carrying carrier. Light distribution assembly according to claim 1, characterized in that in modules ( 100 - 104 ), in each of which at least one optical element is a lens ( 50 . 70 ), this lens ( 50 . 70 ) Surface areas ( 55 . 56 ; 75 . 76 ) having different curvatures. Light distribution assembly according to claim 1, characterized in that at least individual groups ( 106 - 108 ) of modules ( 100 - 104 ) are pivotable about horizontal and vertical axes or a multi-axis joint. Light distribution assembly according to claim 1, characterized in that the modules ( 100 - 102 ) Casing ( 10 ) on which - for directly juxtaposing the housing ( 10 ) - coupling tongues ( 23 . 24 ) are arranged.

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