CN215446324U - Signal lamp device for a motor vehicle headlight - Google Patents
Signal lamp device for a motor vehicle headlight Download PDFInfo
- Publication number
- CN215446324U CN215446324U CN202120447430.3U CN202120447430U CN215446324U CN 215446324 U CN215446324 U CN 215446324U CN 202120447430 U CN202120447430 U CN 202120447430U CN 215446324 U CN215446324 U CN 215446324U
- Authority
- CN
- China
- Prior art keywords
- decoupling
- signal lamp
- light beam
- optically active
- deflection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/241—Light guides characterised by the shape of the light guide of complex shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/242—Light guides characterised by the emission area
- F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/247—Light guides with a single light source being coupled into the light guide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to a signal lamp device for a motor vehicle headlight, comprising a light source; an optical waveguide comprising a coupling section and a decoupling section, the coupling section being designed as a collimator which orients the light beam parallel to the main radiation direction, and the optical waveguide further comprising a deflection device with at least one reflection surface which deflects the light beam of the coupling section in a deflection direction, the decoupling section comprising a plurality of decoupling elements which decouple the light beam from the optical waveguide in a decoupling direction which differs from the deflection direction; the deflection device comprises a decoupling surface which refracts the light beam falling in, the light beam decoupled from the decoupling section falls on a first part of the optically active surface, the light beam refracted by the decoupling surface falls on a second part of the optically active surface of the diffusing glass, so that a uniform falling of the light beam decoupled from the optical waveguide can be achieved on all the optically active surfaces obtained by the first and second parts.
Description
Technical Field
The utility model relates to a signal lamp device for a motor vehicle headlight, comprising
-at least one light source,
an optical waveguide associated with the at least one light source, comprising a coupling section (Einkoppelabschnitt, sometimes referred to as an incoupling section) for coupling a light beam that can be emitted by the at least one light source into the optical waveguide and a decoupling section for decoupling the light beam from the optical waveguide,
wherein the coupling section is designed as a collimator which is set up to orient a light beam which can be emitted by the at least one light source parallel to the main radiation direction, and wherein the optical waveguide additionally comprises a deflection device with at least one reflection surface which is set up to deflect a light beam falling onto the deflection device in the main radiation direction in the deflection direction,
and wherein the decoupling section comprises a plurality of decoupling elements which are set up to decouple a light beam falling onto the decoupling elements in the deflection direction from the light guide body in a first decoupling direction which differs from the deflection direction,
a light-diffusing glass with at least one optically active surface, which is designed to refract the incident light beam, wherein the light beam decoupled from the decoupling section falls onto a first part of the optically active surface of the light-diffusing glass.
The utility model further relates to a motor vehicle headlight with at least one signal lamp arrangement according to the utility model.
Background
Signal light devices for motor vehicles are, for example, side marker lights, the size and design of which are in most cases predetermined by the motor vehicle manufacturer, some of which designs are intended to be provided in a simultaneously small installation space for a relatively large illuminable area of the signal light device.
This is responsible for the fact that the entire optically active surface of the diffusing glass or the light guide of the diffusing glass of the signaling device is not able to be illuminated uniformly or homogeneously, which does not function adequately because of the small available installation space.
SUMMERY OF THE UTILITY MODEL
The object of the utility model is to create an improved signaling lamp for a motor vehicle headlight.
This object is achieved in that the deflection device comprises at least one decoupling surface which is adjacent to the at least one reflection surface and which is designed to refract and decouple the light beam falling onto the deflection device in the main radiation direction in at least one second decoupling direction from the light guide, wherein the light guide and the diffusing glass are arranged relative to one another in such a way that the light beam refracted by the decoupling surface falls onto a second part of the optically active surface of the diffusing glass, so that a uniform falling of the light beam decoupled from the light guide onto the entire optically active surface resulting from the first and second parts can be achieved.
This makes it possible to achieve a smaller structural size of the light guide, since it makes it possible to uniformly or homogeneously illuminate a larger region of the optically active surface of the diffusing glass. This results in a generally smaller design of the signaling device.
The beam falling onto the at least one reflection surface in the main radiation direction is deflected in the deflection direction by total reflection.
The usual propagation of the light beam in the light guide is likewise effected by total reflection.
It may be provided that the deflection device comprises a plurality of reflection surfaces and a plurality of decoupling surfaces, wherein in each case one decoupling surface and in each case one reflection surface project as a prismatic body relative to the light conductor.
It may be provided that the deflection device has a prismatic structure, preferably a homogeneous prismatic structure.
It can be provided that the first decoupling direction is not equal to the at least one second decoupling direction.
It can be provided that the decoupling elements of the decoupling section are configured as prisms which project relative to the light guide.
It can be provided that the diffusing glass comprises a plurality of micro-optics and/or pad optics (Polsteroptik) which are set up to diffuse the falling light beam.
It can be provided that the at least one light source is configured as an LED.
It can be provided that the optically active surface substantially follows the virtual basic shape in its entirety, and wherein the decoupling section at least partially follows the virtual basic shape of the optically active surface, wherein preferably the virtual basic shape is a curved surface.
It can be provided that the deflection direction follows an imaginary basic shape, preferably a flat surface, which does not follow or differs from the imaginary basic shape of the optically active surface of the diffusing glass.
It can be provided that the virtual basic shape of the deflection device, proceeding from the coupling section of the optical waveguide, approaches over its extent the optically active surface of the diffusing glass, so that the distance between the virtual basic shape of the optically active surface and the virtual basic shape of the deflection device is reduced.
Provision may be made for the light guide to be constructed in one piece.
It may be provided that the light conductor is made of Tarflon.
It may be provided that at least one of the reflective surfaces of the deflection device is coated with a metallic surface.
This improves the reflectivity of the at least one reflective surface.
It may be provided that the deflection direction is perpendicular to the main radiation direction.
It can be provided that the decoupling section projects as a leg (sometimes called a side) from the coupling section.
It can be provided that at least one decoupling surface of the deflection device is formed as part of the circumference of a cylinder, wherein the height of an imaginary cylinder is oriented perpendicular to the main radiation direction, preferably at least one decoupling surface is formed as a quarter of the circumference of the cylinder.
The object is likewise achieved by a motor vehicle headlight with at least one signaling device according to the utility model.
Drawings
The utility model is explained in more detail later on with reference to exemplary drawings. Here:
FIG. 1 shows a perspective view of an exemplary signal lamp arrangement with a light source, a light guide and a diffusing glass
Fig. 2 shows a schematic view of the signal lamp arrangement from fig. 1.
Detailed Description
Fig. 1 shows an exemplary signaling device 10 for a motor vehicle headlight, comprising a light source 50 in the form of an LED and a single-piece light guide 100 (i.e. a light guide made of a material in one piece, for example Tarflon) associated with the light source 50.
The light guide 100 further comprises a deflection device 200 with a plurality of reflection surfaces 210, which can be coated with a metal surface and which are designed to deflect a light beam falling onto the deflection device 200 in a main radiation direction X in a deflection direction Y, as can be recognized more clearly in the schematic drawing in fig. 2.
The decoupling section 150 comprises a plurality of decoupling elements 151, which in the example shown protrude from the decoupling section as protruding prisms or prism-like bodies, wherein the decoupling elements 151 are designed to decouple a light beam falling onto the decoupling elements 151 in the deflection direction Y from the light guide 100 in a first decoupling direction Z1 different from the deflection direction Y. It is noted that in the schematic drawing from fig. 2 not all decoupling elements 151 present are drawn in and that more than the illustrated decoupling elements may also be present, in particular at their location at decoupling section 150.
Furthermore, the signal lamp device 10 comprises a diffusing glass 300, which is coupled behind the light guide 100, viewed in the main radiation direction X, wherein the diffusing glass comprises an optically active surface 310, which is designed to refract the incident light beam, wherein the light beam decoupled from the decoupling section 150 falls onto a first portion 320 of the optically active surface 310 of the diffusing glass 300. The diffusing glass may include a plurality of micro-optics or pad optics 360 at the optically active surface 310, as can be seen in fig. 2, for better scattering of light.
The deflection device 200 further comprises a plurality of decoupling surfaces 220 which are adjacent to the reflection surfaces 210, wherein in each case one decoupling surface 220 and in each case one reflection surface 210 project as a prism-like body relative to the optical waveguide 100 and are arranged regularly at the optical waveguide 100 in the form of a regular prism-like structure.
The decoupling surface 220 is designed to refract the light beam falling onto the deflection device 200 in the main radiation direction X in at least one second decoupling direction Z2 and to decouple it from the light guide 100, wherein the light guide 100 and the diffusing glass 300 are arranged relative to one another in such a way that the light beam refracted by the at least one decoupling surface 220 falls onto the second section 330 of the optically active surface 310 of the diffusing glass 300, so that a uniform falling of the light beam decoupled from the light guide 100 onto the entire optically active surface 310, which is obtained by the first and second sections 320,330, can be achieved.
The decoupling surfaces 220 of the deflection device 200 are each formed as a part of the circumference of a cylinder, wherein the height of an imaginary cylinder is oriented perpendicular to the main radiation direction X, wherein the decoupling surfaces 220 are each formed as a quarter of the circumference of a cylinder.
Furthermore, it can be seen in the figure that the optically active surface 310 of the diffusing glass 300 substantially follows the virtual basic shape (in the example shown, a flat surface, wherein also other shapes are possible, for example a curved surface) in its entirety, and wherein the decoupling section 150 partially follows the virtual basic shape of the optically active surface 310.
The deflection device 200 likewise follows a virtual basic shape (in the example shown, a flat face, wherein also other shapes are possible, for example a curved face), which does not follow or differs from the virtual basic shape of the optically active face 310 of the diffusing glass 300. In this case, the virtual basic shape of the deflector 200, proceeding from the coupling section 110 of the optical waveguide 100, approaches the optically active surface 310 of the diffuser 300 over its extent, so that the distance between the virtual basic shape of the optically active surface 310 and the virtual basic shape of the deflector 300 is reduced. In the example shown, in which both the virtual base surface of the optically active surface 310 of the diffusing glass 300 and the virtual base shape of the deflection device 200 are planar surfaces, the two base shapes or planes enclose an angle with one another.
REFERENCE SIGNS LIST
10 signal lamp device
50 light source
100 optical conductor
110 coupling section
150 decoupling section
151 decoupling element
200 deflection device
210 reflective surface
220 decoupling surface
300 light-diffusing glass
310 optically active surface
320 first part of optically active surface
330 second part of the optically active surface
360 micro-optic device or pad optic device
Main direction of X radiation
Direction of Y deflection
Z1 first decoupling direction
Z2 second decoupling direction.
Claims (19)
1. Signal lamp device (10) for a motor vehicle headlight, comprising:
-at least one light source (50),
-an optical conductor (100) associated with the at least one light source (50), comprising a coupling section (110) for coupling a light beam that can be emitted by the at least one light source (50) into the optical conductor (100) and a decoupling section (150) for decoupling the light beam from the optical conductor (100),
wherein the coupling section (110) is designed as a collimator which is designed to orient a light beam which can be emitted by the at least one light source (50) parallel to a main radiation direction (X), and wherein the light guide (100) further comprises a deflection device (200) with at least one reflection surface (210) which is designed to deflect a light beam falling onto the deflection device (200) in the main radiation direction (X) in a deflection direction (Y),
and wherein the decoupling section (150) comprises a plurality of decoupling elements (151), which decoupling elements (151) are set up to decouple a light beam falling onto the decoupling elements (151) in a deflection direction (Y) from the light guide (100) in a first decoupling direction (Z1) differing from the deflection direction (Y),
-a light-diffusing glass (300) with at least one optically active face (310) set up to refract the falling light beam, wherein the light beam decoupled from the decoupling section (150) falls onto a first portion (320) of the optically active face (310) of the light-diffusing glass (300),
it is characterized in that the preparation method is characterized in that,
the deflection device (200) comprises at least one decoupling surface (220), which is adjacent to at least one reflection surface (210) and which decoupling surface (220) is designed to refract a light beam falling onto the deflection device (200) in a main radiation direction (X) in at least one second decoupling direction (Z2) and to decouple it from the light guide (100), wherein the light guide (100) and the diffusing glass (300) are arranged relative to one another in such a way that the light beam refracted by the at least one decoupling surface (220) falls onto a second section (330) of the optically active surface (310) of the diffusing glass (300), so that a uniform falling of the light beam decoupled from the light guide (100) onto the entire optically active surface (310) obtained by the first and second sections (320,330) is made possible.
2. The signal lamp device according to claim 1, characterized in that the deflection means (200) comprise a plurality of reflection surfaces (210) and a plurality of decoupling surfaces (220), wherein one decoupling surface (220) and one reflection surface (210) each project as a prismatic body relative to the light conductor (100).
3. The signal lamp apparatus according to claim 2, characterized in that the deflection device (200) has a prismatic structure.
4. The signal lamp device according to one of claims 1 to 3, characterized in that the first decoupling direction (Z1) is not equal to the at least one second decoupling direction (Z2).
5. The signal lamp device as claimed in one of claims 1 to 3, characterized in that the decoupling elements (151) of the decoupling section (150) are configured as prisms which project relative to the light guide body (100).
6. The signal lamp device according to any one of claims 1 to 3, characterised in that the diffusing glass (300) comprises a plurality of micro-optics and/or pad-optics set up to diffuse the falling light beam.
7. The signal lamp device according to any one of claims 1 to 3, characterised in that the at least one light source (50) is configured as an LED.
8. The signal lamp device according to any one of claims 1 to 3, characterized in that the optically active surface (310) in its entirety follows an imaginary basic shape, and in that the decoupling section (150) at least partially follows the imaginary basic shape of the optically active surface (310).
9. The signal lamp device according to claim 8, characterized in that the deflection means (200) follow a virtual basic shape which does not follow or differs from the virtual basic shape of the optically active face (310) of the diffusing glass (300).
10. The signal lamp device according to claim 9, characterized in that the virtual basic shape of the deflection device (200) is approached from the coupling section (110) of the light guide (100) over the extent of the optically active surface (310) of the light diffusing pane (300) such that the distance between the virtual basic shape of the optically active surface (310) and the virtual basic shape of the deflection device (200) is reduced.
11. The signal lamp device as claimed in one of claims 1 to 3, characterized in that the light guide (100) is constructed in one piece.
12. The signal lamp apparatus according to any of claims 1 to 3, characterized in that at least one reflecting surface (210) of the deflection device (200) is coated with a metallic surface.
13. Signal lamp device according to any of claims 1 to 3, characterized in that the deflection direction (Y) is perpendicular to the main radiation direction (X).
14. The signal lamp apparatus according to any of the claims 1 to 3, characterized in that at least one decoupling surface (220) of the deflection device (200) is configured as part of the circumference of a cylinder, wherein the height of an imaginary cylinder is oriented perpendicular to the main radiation direction (X).
15. The signal lamp apparatus according to claim 3, characterized in that the deflection device (200) has a homogeneous prismatic structure.
16. The signal lamp device according to claim 8, characterized in that the virtual basic shape of the optically active surface (310) is a curved surface.
17. The signal lamp apparatus as defined in claim 9, wherein the virtual base shape is a flat face.
18. The signal lamp device according to claim 14, characterized in that the at least one decoupling surface (220) is configured as a quarter of the circumference of the cylinder.
19. Motor vehicle headlight with at least one signal lamp device according to one of the claims 1 to 18.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20160428.7A EP3875847A1 (en) | 2020-03-02 | 2020-03-02 | Signal light device for a motor vehicle headlight |
| EP20160428.7 | 2020-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215446324U true CN215446324U (en) | 2022-01-07 |
Family
ID=69743151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120447430.3U Active CN215446324U (en) | 2020-03-02 | 2021-03-02 | Signal lamp device for a motor vehicle headlight |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3875847A1 (en) |
| CN (1) | CN215446324U (en) |
| DE (1) | DE202021100910U1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4015897A1 (en) * | 2020-12-18 | 2022-06-22 | ZKW Group GmbH | Signal light device or lighting device for a motor vehicle headlamp |
| FR3126745A1 (en) * | 2021-09-08 | 2023-03-10 | Psa Automobiles Sa | BACK-FACED LIGHT GUIDE ILLUMINATION DEVICE REFLECTING PHOTONS TOWARDS THE ENTIRETY OF AN EXIT FRONT FACE |
| CN217235478U (en) * | 2021-10-29 | 2022-08-19 | 法雷奥照明湖北技术中心有限公司 | Thick-walled light guide, lighting device and motor vehicle |
| CN217382775U (en) * | 2021-12-30 | 2022-09-06 | 市光法雷奥（佛山）汽车照明系统有限公司 | Collimator, lighting device and motor vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT8552912V0 (en) * | 1985-01-28 | 1985-01-28 | Comind S P Aa | MOTORCYCLE LIGHT |
| DE102005003367B4 (en) * | 2005-01-24 | 2009-05-07 | Odelo Gmbh | Light unit with light divider |
| DE102007013082A1 (en) * | 2007-03-14 | 2008-09-18 | Hella Kgaa Hueck & Co. | Signal light i.e. elevated brake light, for motor vehicle, has elongated reflection section including set of reflection elements and provided at rear side for deflecting coupled light in main radiation direction |
| FR3024529B1 (en) * | 2014-07-30 | 2016-09-02 | Valeo Vision Belgique | LIGHT MODULE WITH OPTICAL GUIDE FOR MOTOR VEHICLE |
| JP2016046120A (en) * | 2014-08-25 | 2016-04-04 | スタンレー電気株式会社 | Vehicular lighting fixture |
| AT520399B1 (en) * | 2017-08-29 | 2020-10-15 | Zkw Group Gmbh | LIGHTING DEVICE AND / OR SIGNALING DEVICE FOR A MOTOR VEHICLE |
-
2020
- 2020-03-02 EP EP20160428.7A patent/EP3875847A1/en not_active Withdrawn
-
2021
- 2021-02-24 DE DE202021100910.1U patent/DE202021100910U1/en active Active
- 2021-03-02 CN CN202120447430.3U patent/CN215446324U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202021100910U1 (en) | 2021-03-17 |
| EP3875847A1 (en) | 2021-09-08 |
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| GR01 | Patent grant | ||
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