CN112902102B - Automobile lamp - Google Patents
Automobile lamp Download PDFInfo
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- CN112902102B CN112902102B CN202110112397.3A CN202110112397A CN112902102B CN 112902102 B CN112902102 B CN 112902102B CN 202110112397 A CN202110112397 A CN 202110112397A CN 112902102 B CN112902102 B CN 112902102B
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- 230000005494 condensation Effects 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 10
- 238000000465 moulding Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000197727 Euscorpius alpha Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
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- 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
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- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- 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)
- Planar Illumination Modules (AREA)
Abstract
The application discloses an automobile lamp, which comprises a light source, a light guide and a thick-wall member, wherein the light source is arranged at the end part of the light guide, the light guide is arranged at the rear part of the thick-wall member, and light rays emitted by the light source are transmitted by the light guide and then are emitted to the back surface of the thick-wall member; the front of the thick-wall piece is provided with a plurality of light-emitting planes which are parallel to each other, the back of the thick-wall piece is provided with at least one light-entering plane, the light-entering plane and the light-emitting plane are parallel to each other, and light rays are emitted from the light-emitting plane after being emitted into the thick-wall piece from the light-entering plane. In the application, the brightness of the light rays at different axial parts of the light guide is uniform, the light rays are emitted to the thick-wall member from an incident plane, and the light rays are uniformly emitted to the thick-wall member from multiple angles in a surface light source mode, so that no local dark area exists; the light emitted by the light guide has components in the vertical and horizontal directions, and the light emitting plane and the light entering plane are kept parallel, so that the emitted light and the incident light are kept in a divergent state, the requirement of regulations is met, and the light emitting particle sense of the light emitting surface caused by the arc light emitting surface is avoided, so that the light of the car lamp is uniform.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to an automobile lamp.
Background
The automobile lamp is a main part of an automobile, part of the automobile lamp irradiates a light source onto the thick-wall member by arranging the thick-wall member, and light rays are emitted after being refracted by the thick-wall member, so that the light-emitting effect of the thick-wall member is formed.
The existing thick-wall part light distribution scheme is that light rays emitted by an LED lamp are collimated into parallel light through a condenser, and then the light rays are emitted from the front surface of the thick-wall part through a thick-wall part body. The front cooperation of thick wall spare is made the profile and is provided with the grading decorative pattern, and the grading decorative pattern includes a plurality of decorative pattern faces, and the surface of every decorative pattern face all is the arc, and curved setting makes light can be towards all directions divergence.
In the light distribution mode, each LED emits light in a dot shape, light spots with brighter centers and darker edges are formed on the pattern surface, and when the light is emitted, a local dark area exists on the front surface of the thick-wall member, as shown in fig. 21, the light intensity of a C-C line on the thick-wall member 001 is shown as the coordinates of fig. 22, the light of each LED forms one light spot, and the C-C line area shows two light spots.
And, as shown in fig. 23, the intensity of the light is represented by the length of the line on the tread 002, the luminous effect on the tread 002 is shown, because of the arc-shaped arrangement of the tread 002, the light is injected into different areas of the tread 002, the direction of the refracted outgoing light is different, the light can be dispersed towards all directions, when the front (X direction in the drawing) is seen, only the outgoing light emitted from the central area of the tread 002 can be observed, the outgoing light of the edge area of the tread 002 can not be observed, the luminous brightness on each tread 002 is in a trend of weakening from the center to the edge, the dark area between two adjacent tread 002 is obvious, the front of the thick-wall member is in a granular shape when the vehicle lamp emits light, the vehicle lamp emits light unevenly, and the luminous quality is poor.
Disclosure of Invention
The purpose of this application is overcome and appears local dark space and graininess not enough when prior art car light is luminous, provides a car light that luminous effect is better.
The technical scheme of the application provides an automobile lamp, which comprises a light source, a light guide and a thick-wall member, wherein the light source is arranged at the end part of the light guide, the light guide is arranged at the rear part of the thick-wall member, and light rays emitted by the light source are transmitted by the light guide and then are emitted to the back surface of the thick-wall member;
the front of thick-wall spare is provided with a plurality of light-emitting plane that are parallel to each other, the back of thick-wall spare is provided with at least one light-entering plane, light-entering plane with light-emitting plane is parallel to each other, light follow light-entering plane is penetrated thick-wall spare back is followed light-emitting plane is penetrated.
Further, the front surface of the thick-wall member is further provided with a plurality of connection step surfaces, and two adjacent light emergent planes are connected through one connection step surface.
Further, the normal direction of the connecting step surface is perpendicular to the front-rear direction of the thick-wall member.
Further, the included angle between the connecting step surface and the light emergent plane is larger than or equal to 90 degrees.
Further, the back of the thick-wall member is provided with a plurality of light incident planes which are parallel to each other, and the light incident planes are arranged at intervals along the left-right direction of the thick-wall member.
Further, two adjacent light incident planes are connected through a connecting surface, and the normal direction of the connecting surface is perpendicular to the front-back direction of the thick-wall piece.
Further, the light guide comprises a first light guide, the thick-wall member comprises a first thick-wall member, and light distribution teeth, a light emergent cambered surface and two light gathering guide surfaces are arranged on the outer surface of the first light guide;
the light distribution teeth and the light emergent arc surface are oppositely arranged, the light distribution teeth and the light emergent arc surface are connected through two light condensation guide surfaces, and the light emergent arc surface faces the back surface of the first thick-wall piece.
Further, the light guide further comprises a second light guide, the thick-wall member comprises a second thick-wall member, auxiliary light distribution teeth are arranged on the outer surface of the second light guide, the auxiliary light distribution teeth are arranged along the length direction of the second light guide, and part of light rays of the light source are reflected by the auxiliary light distribution teeth and then are emitted from the upper surface of the second thick-wall member after being emitted into the second thick-wall member.
Further, the auxiliary light distribution teeth are located on the upper surface of the second light guide, part of light rays of the light source are reflected by the auxiliary light distribution teeth and then are emitted to the lower surface of the second thick-wall member, and the light rays are reflected by the lower surface of the second thick-wall member and are emitted from the upper surface of the second thick-wall member.
After the technical scheme is adopted, the method has the following beneficial effects:
in the application, the light of the light source is conducted by the light guide and then is emitted to the thick-wall member, the light guide converts the point light emission of the LED into light guide surface light emission, namely, the light is uniformly dispersed from the axis of the light guide to the periphery, the brightness of different parts in the axis of the light guide is uniform, the dispersed light is emitted into the thick-wall member from the light incident plane, and is emitted to the thick-wall member from multiple angles in a surface light source mode, so that a local dark area caused by the point light source in the prior art is not generated;
because the light that the light guide sent is the divergent light that sends out from the axis of light guide, light source itself has the components of upper and lower left and right directions, the light of entering light plane is the light after scattering, and light-emitting plane and light-entering plane keep parallel, after the twice refraction of incident light through the thick wall spare, can follow the light-emitting plane of thick wall spare along the direction parallel with the incident direction and go out, consequently the light that the light-emitting plane was gone out also keeps diverging state, the emergent light satisfies the regulation requirement, need not set up light-emitting plane as the arc, thereby avoid setting up the arc light-emitting face and lead to the luminous particle sense of every light-emitting face, make the car light present even luminous effect, the luminous quality of car light has been guaranteed.
Drawings
The disclosure of the present application will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
FIG. 1 is a front view of an automotive lamp in an embodiment of the present application;
FIG. 2 is an exploded schematic view of an automotive lamp in an embodiment of the present application;
FIG. 3 isbase:Sub>A schematic cross-sectional view of section A-A of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a schematic front view of a thick wall member according to one embodiment of the present application;
FIG. 6 is a schematic back view of a thick wall member in accordance with one embodiment of the present application;
FIG. 7 is a schematic top view of a thick wall piece in an embodiment of the present application;
FIG. 8 is an enlarged view of a portion of FIG. 5;
FIG. 9 is an oblique view of a thick wall member in an embodiment of the present application;
FIG. 10 is a schematic illustration of the light emission of the light emitting face of a thick wall member in an embodiment of the present application;
FIG. 11 is a schematic view of the light exit plane and the connecting step surface with the angle set at a right angle;
FIG. 12 is a schematic view showing the positional relationship between the light emitting plane and the connection step surface in an embodiment of the present application;
FIG. 13 is a schematic view of a rear portion of a thick wall member in accordance with an embodiment of the present application;
FIG. 14 is a schematic cross-sectional view taken along line B-B in FIG. 5;
FIG. 15 is an enlarged view of a portion of FIG. 3;
FIG. 16 is a schematic illustration of the positional relationship of a light guide and a thick-walled member in an embodiment of the present application;
FIG. 17 is a schematic view of a thick wall piece of an embodiment of the present application with a contoured surface of the light emitting surface fitted to a curved surface;
FIG. 18 is a schematic illustration of the normal to the light emitting surface molding surface of a thick wall member in an XYZ coordinate system in an embodiment of the present application;
FIG. 19 is a schematic view of the normal to the light exit plane of a thick wall member in an embodiment of the present application in an XYZ coordinate system;
FIG. 20 is a schematic illustration of the normal to the light exit plane of a thick wall member in an XYZ coordinate system in an embodiment of the present application;
FIG. 21 is a schematic front view of a prior art thick-walled member;
FIG. 22 is a schematic view of the light intensity coordinates at line C-C in FIG. 20;
fig. 23 is a schematic view showing luminescence on a patterned surface of a thick-walled member in the prior art.
Detailed Description
Specific embodiments of the present application are further described below with reference to the accompanying drawings.
It is easy to understand that, according to the technical solution of the present application, those skilled in the art may replace various structural manners and implementation manners without changing the true spirit of the present application. Accordingly, the following detailed description and drawings are merely illustrative of the present application and are not intended to be exhaustive or to be limiting of the application.
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two components. The above-described specific meanings belonging to the present application are understood as appropriate by those of ordinary skill in the art.
1-3, the automobile lamp comprises a light source (not shown in the drawings), a light guide 01 and a thick-wall member 02, wherein the light source is arranged at the end part of the light guide 01, the light guide 01 is arranged at the rear part of the thick-wall member 02, and light rays emitted by the light source are transmitted through the light guide 01 and then are emitted to the back surface of the thick-wall member 02;
the front of the thick-wall member 02 is provided with a plurality of light-emitting planes 21 which are parallel to each other, the back of the thick-wall member 02 is provided with at least one light-entering plane 22, the light-entering plane 22 and the light-emitting plane 21 are parallel to each other, and light rays are emitted from the light-emitting plane 21 after being emitted into the thick-wall member 02 from the light-entering plane 22.
Specifically, as shown in fig. 1 and 2, the automobile lamp further comprises a shell assembly 03, a light guide bracket 04, a decorative ring 05 and an outer lampshade 06, and the light guide bracket 04, the light guide 01, the light source and the thick-wall member 02 are all arranged in the shell assembly 03. Wherein the light guide 01 and the light source are arranged on the light guide bracket 04, the thick-wall member 02 is positioned in front of the light guide 01, the light guide 01 and the light source are arranged in the decorative ring 05, and the outer lampshade 06 covers the front of the thick-wall member 02.
As shown in fig. 1 and 2, the X direction is the front-rear direction of the thick-walled material, the Y direction is the left-right direction of the thick-walled material along the longitudinal direction of the vehicle body, the width direction of the vehicle body, and the Z direction is the up-down direction of the thick-walled material, and the height direction of the vehicle body. The definition of the above direction continues to follow hereinafter.
The automotive lamp shown in fig. 1 and 2 is provided with two thick-walled members, namely, a first thick-walled member 02a and a second thick-walled member 02b, respectively, a second thick-walled member 02b above, a position lamp as an automotive vehicle, a daytime running lamp and a turn lamp (hereinafter referred to as a hybrid lamp), a first thick-walled member 02a below, a first light guide 01a and a light source being provided for the first thick-walled member 02a, and a second light guide 01b and a light source being provided for the second thick-walled member 02 b.
Specifically, as shown in fig. 3, the second thick-walled member 02b, which is a hybrid lamp at the top, has one light-emitting portion 26, and since the light-emitting portion 26 is thick (i.e., the height in the up-down direction), two second light guides 01b are provided to guide light so as to ensure the light-emitting luminance of the second thick-walled member 02 b. The first thick-walled member 02a serving as a daytime running light below is provided with four light emitting parts 25 at intervals in the up-down direction, and each light emitting part 25 is provided with a first light guide 01a for guiding light.
As shown in fig. 3, the light guides 01 are disposed behind the corresponding thick-walled members 02, and light is directed from the back side to the front side of the thick-walled members 02. To ensure uniform front-side illumination of the thick-walled member 02, all of the light exit planes 21 are parallel to one another.
Furthermore, the light incident plane 22 and the light emergent plane 21 are parallel to each other, and as shown in fig. 3, an extension L1 of one of the light emergent planes 21 is parallel to an extension L2 of one of the light incident planes 22; similarly, in fig. 14, an extension L3 of one of the light exit planes 21 is parallel to an extension L4 of one of the light entrance planes 22.
Taking fig. 4 as an example, the light incident plane 22 of the second thick-walled member 02b is parallel to the light emergent plane 21, so that the light incident into the thick-walled member 02a from the light incident plane 22 at any angle, after being refracted by the second thick-walled member 02b, the angle at which the second thick-walled member 02b emerges from the light emergent plane 21 can be kept the same as the incident angle of the light, i.e. the emerging light can be kept parallel to the incident light.
Alternatively, one or more light entrance planes 22 may be provided, in particular depending on the shaping of the thick-walled member 02.
The light source generally adopts an LED and is mounted at the end of the light guide 01, and the light emitted by the light source is firstly injected into the light guide 01, is emitted from the surface of the light guide 01 after being conducted by the light guide 01, and is scattered in the vertical and horizontal directions, so that the light can be emitted from the surface of the light guide 01 towards all directions. The light scattered by the light guide 01 is injected into the thick-wall member 02 from the light-incoming plane 22 of the thick-wall member 02, and since the light-incoming plane 22 is parallel to the light-outgoing plane 21, the light injected into the thick-wall member 02 can be emitted from the light-outgoing plane 21 in the same direction, so that the outgoing light of the light-outgoing surface of the thick-wall member 02 is kept in the same direction as the scattered incident light, and is scattered in the vertical and horizontal directions, see the luminous effect diagram shown in fig. 10, wherein the line direction is the light direction, the length of the line refers to the light intensity, and the longer the line length is, the stronger the light intensity is indicated.
And since the light-emitting plane 21 is a plane, an observer views the light-emitting plane 21 from an arbitrary angle, and can see the entire light-emitting plane 21 to emit light, and the single light-emitting plane 21 exhibits uniform light emission. Meanwhile, as the whole light guide 01 emits light uniformly in the length direction, namely the light intensity incident to different positions of the thick-wall member in the length direction is uniform, the whole light emitting surface formed by the light emitting planes 21 emits light uniformly. As shown in fig. 10, the direction of the line on the light plane 21 indicates the direction of the light, the length of the line indicates the intensity of the light, and the longer the length is, the stronger the light intensity is. As can be seen from the figure, since the intensities of the light rays emitted in the same direction are the same for different positions (center and edge) of the same light emitting plane 21, the light emission of each light emitting plane 21 is uniform from any angle, and no edge dark area occurs, thereby eliminating the graininess of the light emission of the thick-walled member 02. Further, since the intensities of the light rays emitted in the same direction are the same for the different light emitting planes 21, the light emitting planes 21 at different positions on the thick member 02 are uniform from any angle, and no local dark area occurs.
Fig. 4 to 14 show the structure of the second thick-walled member 02b, and the structure of the thick-walled member 02 will be described below by taking the second thick-walled member 02b as an example. Further, as shown in fig. 9, the front surface of the second thick-wall member 02b is further provided with a plurality of connection step surfaces 23, and two adjacent light emitting planes 21 are connected by one connection step surface 23.
The front surface of the second thick-wall member 02b is a light emitting surface molding surface, and follows the shape of the light emitting surface molding surface, see fig. 5, 8 and 9, the light emitting planes 21 are arranged in a square shape, and the square shape can be square, rectangle or parallelogram. Preferably, the area of each light exit plane 21 is the same.
As shown in fig. 17, the light emitting surface molding surface 28 of the second thick-walled member 02b is fitted to a smooth arc surface, which is the optimum shape of the light emitting surface molding surface 28 without considering the light distribution requirement. The normal setting of the light exit plane 21 is set according to the normal of the light emitting surface molding surface 28.
Specifically, as shown in fig. 18, in the foregoing XYZ coordinate system, the normal E of the light emitting surface molding surface 28 forms an angle α with the X direction, and the component of the angle α in the XOZ plane forms an angle α XOZ The component of the included angle alpha on the XOY plane is alpha XOY . As shown in fig. 19, in the XYZ coordinate system, the angle between the normal F of the light exit plane 21 and the X direction is β, and the component of the angle β on the XOZ plane is β XOZ The component of the included angle beta on the XOY plane is beta XOY 。
Preferably, the component of the angle beta in the XOZ plane is beta XOZ The recommended angle of the light emitting plane 21 is 0 degrees, so that the light emitting plane 21 can face to the front of the vehicle, and the light distribution requirement of the regulations is met; the component of the angle beta on the XOY plane is beta XOY The component of the included angle alpha on the XOY plane is alpha under the condition of being smaller than and meeting the requirement of the legal light distribution XOY I.e. alpha XOY -β XOY Should be as small as possible so that the angle of the light exit plane 21 can approach the angle of the light emitting surface profile 28, fig. 20 shows the light exit of the second rear wall member 02b in the embodiment of the present applicationThe optimum normal angle of the plane 21 is schematically shown.
Further, since the light emitting surface of the second thick-wall member 02b is curved, and the light emitting planes 21 are parallel to each other, the adjacent light emitting planes 21 are not on the same plane, and the two light emitting planes are connected by the connecting step surface 23, the connecting step surface 23 serves to connect the adjacent two light emitting planes 21. As shown in fig. 9, for the checkered light emitting plane 21, at most four connection step surfaces 23 are connected to each light emitting plane 21.
Preferably, the normal direction of the connection step surface 23 is perpendicular to the front-rear direction of the second thick-walled member 02b, i.e., the plane in which the connection step surface 23 lies is parallel to the front-rear direction of the second thick-walled member 02 b.
Therefore, when the light source is turned on, each light emitting plane 21 emits light uniformly, and all the light emitting planes 21 are visually connected together to form a complete plane, so that the entire light emitting surface of the second thick-walled member 02b emits light uniformly in visual effect, and the light-emitting particle sensation is completely eliminated.
Further, in the embodiment of the present application, the included angle between the connection step surface 23 and the light emitting plane 21 is greater than or equal to 90 °, so as to reduce the area of the connection step surface 23, thereby improving the appearance quality of the second thick-wall member 02 b. For the connection step surface 23a (see fig. 9) connecting the two light-emitting planes 21 adjacent to each other up and down, the angle between the connection step surface 23a and the light-emitting plane 21 is 90 °, and for the connection step surface 23b (see fig. 9) connecting the two light-emitting planes 21 adjacent to each other left and right, the angle between the connection step surface 23b and the light-emitting plane 21 is an obtuse angle.
Specifically, fig. 11 is a comparative schematic diagram showing that the included angle α2 between the light emitting plane 21 and the connecting step surface 23 is set at a right angle, wherein the maximum distance a2 of two adjacent light emitting planes 21 in the front-rear direction of the thick-walled member 02a is the same as the maximum distance a1 of two light emitting planes 21 in the front-rear direction of the second thick-walled member 02b shown in fig. 12 in the embodiment of the present application. Comparing the comparative example shown in fig. 11 with the embodiment of the present application shown in fig. 12, the area of the connecting step surface 23 in fig. 11 is significantly larger than the area of the connecting step surface 23 in fig. 12, and the range of the connecting step surface 23 that can be observed in fig. 11 is larger when the front surface of the second thick-walled member 02b is observed at the same azimuth O-point. Therefore, the angle between the light-emitting plane 21 and the connection step surface 23 is an obtuse angle, so that the area of the connection step surface 23 can be effectively reduced, the dark area caused by the connection step surface 23 can be observed from angles other than the front surface as much as possible, and the light-emitting effect of the second thick-wall member 02b can be improved. In the non-lit state, the included angle α1 is set to an obtuse angle, so that the saw-tooth state of the front surface of the second thick-walled material 02b can be weakened, and the appearance quality of the thick-walled material can be improved.
Further, as shown in fig. 6, 13 and 14, the back surface of the second thick-walled member 02b is provided with a plurality of light incident planes 22 parallel to each other, and the light incident planes 22 are arranged at intervals in the left-right direction of the second thick-walled member 02 b.
In this embodiment, the back surface of the second thick-wall member 02b is arc-shaped, as shown in fig. 7, and the back surface of the second thick-wall member 02b is arc-shaped in a top view, and cannot be set to be parallel to the light incident plane 22 of the light emergent plane 21, so that a plurality of light incident planes 22 parallel to each other are set on the back surface of the second thick-wall member 02b for receiving incident light, so that the back surface of the second thick-wall member 02b is saw-tooth-shaped.
Preferably, as shown in fig. 13, two adjacent light incident planes 22 are connected by a connection surface 24, and the normal direction of the connection surface 24 is perpendicular to the front-rear direction X of the second thick-walled member 02b, that is, the plane on which the connection surface 24 is located is parallel to the front-rear direction X of the second thick-walled member 02 b. The connection surface 24 is used for connecting two adjacent light incident planes 22, since the light guide 01a is arranged behind the second thick-wall member 02b, most of light rays are emitted to the light incident plane 22 of the second thick-wall member 02b from back to front, so that loss caused by the light rays striking the connection surface 24 is reduced, the connection surface 24 is parallel to the front-back direction of the second thick-wall member 02b, the light rays are reduced from being directly incident on the connection surface 24, the light ray utilization rate is improved, and the light emitting effect of the second thick-wall member 02b is ensured.
In the present embodiment, the light incident plane 22 is arranged in the left-right direction of the second thick-walled member 02b, and therefore the normal direction of the connection surface 24 is set in the left-right direction Y of the second thick-walled member 02 b.
Alternatively, if the light incident plane 22 is aligned in the up-down direction of the thick-walled member 02, the normal direction of the connection surface 24 is set in the up-down direction Z of the thick-walled member 02.
The above-described structure is described only by taking the second thick-walled member 02b as the hybrid lamp in the embodiment of the present application as an example, and the above-described structure of the first thick-walled member 02a as the daytime running light is the same as that of the second thick-walled member 02b, and will not be described again.
Further, as shown in fig. 15, the outer surface of the first light guide 01a is provided with light distribution teeth 11, a light outgoing arc surface 12, and two light condensing guide surfaces 13;
the light distribution teeth 11 and the light emergent cambered surface 12 are oppositely arranged, the light distribution teeth 11 and the light emergent cambered surface 12 are connected through two light-gathering guide surfaces 13, and the light emergent cambered surface 12 faces the back surface of the first thick-wall member 02 a.
Specifically, fig. 15 shows a cross-sectional view of the first thick-walled member 02a as a daytime running light in the embodiment of the present application, in which the thickness (i.e., the height in the up-down direction) of each light emitting portion 25 of the first thick-walled member 02a is thin, the light emitting range of the tubular first light guide 01a is large, and one light condensing guide surface 13 is provided on each of the upper and lower sides of the light distribution teeth 11 in order to concentrate the light to the light emitting portions 25 of the first thick-walled member 02 a.
As shown in fig. 16, the light-condensing guide surface 13 is a plane, that is, the original arc surfaces on the upper and lower sides of the light distribution tooth 11 of the first light guide 01a are flattened to form the light-condensing guide surface 13, so that light is concentrated on the light-emitting arc surface 12 to be dispersed and emitted, and the light utilization rate is improved.
Preferably, the distance D between the light distribution tooth 11 and the back surface of the first thick-walled member 02a is adjusted to an angle θ 15 ° to 20 ° between the light perpendicularly emitted from the center position of the light distribution tooth 11 to the center of the corresponding light emitting portion 25 in the drawing and the light emitted from the center position of the light distribution tooth 11 to the upper edge of the light emitting portion 25, so as to ensure that the optimal light utilization efficiency can be obtained.
Further, fig. 4 shows a cross-sectional view of a second thick-walled member 02b as an automotive position lamp in the embodiment of the present application, an auxiliary light distribution tooth 14 is further disposed on an outer surface of the second light guide 01b, the auxiliary light distribution tooth 14 is disposed along a length direction of the second light guide 01b, and a part of light of the light source is reflected by the auxiliary light distribution tooth 14 and then is emitted from an upper surface 26 of the second thick-walled member 02b after being incident on the second thick-walled member 02 b.
The upper surface 26 of the second thick-walled member 02b is shown as an arc surface, and when the hybrid lamp is mounted on the vehicle body, the upper surface 26 of the second thick-walled member 02b can be seen from above the vehicle, and in order to avoid the overall appearance of the upper surface 26 of the second thick-walled member 02b as a dark area, the embodiment of the present application reflects light to the upper surface 26 of the second thick-walled member 02b by providing the auxiliary light distribution teeth 14 on the upper surface 26 of the second light guide 01b located above.
As shown in fig. 4, a part of the light source is reflected by the auxiliary light distribution teeth 14 and then directed to the lower surface 27 of the second thick-walled member 02b, and the light is reflected by the lower surface 27 of the second thick-walled member 02b and then emitted from the upper surface 26 of the second thick-walled member 02 b. Thereby, the upper surface 26 of the second thick-wall member 02b is supplemented with light, a dark area on the upper surface of the second thick-wall member 02b is avoided, and the overall lighting effect of the second thick-wall member 02b is improved.
According to the automobile lamp, the uniformity of the light emission of the thick-wall part is guaranteed, the particle sense of the front light emitting effect of the thick-wall part is avoided, and the texture of the side light emitting effect is improved; meanwhile, the light-gathering guide surface and the auxiliary light distribution teeth are arranged on the light guide, so that the utilization efficiency of the light source is improved, and the overall light-emitting texture is improved.
What has been described above is merely illustrative of the principles and preferred embodiments of the present application. It should be noted that several other variants are possible to those skilled in the art on the basis of the principles of the present application and should also be considered as the protection scope of the present application.
Claims (5)
1. The automobile lamp is characterized by comprising a light source, a light guide (01) and a thick-wall member (02), wherein the light source is arranged at the end part of the light guide (01), the light guide (01) is arranged behind the thick-wall member (02), and light rays emitted by the light source are transmitted by the light guide (01) and then are emitted to the back surface of the thick-wall member (02);
the front surface of the thick-wall piece (02) is provided with a plurality of light emergent planes (21) which are parallel to each other, the back surface of the thick-wall piece (02) is provided with at least one light incident plane (22), the light incident plane (22) and the light emergent plane (21) are parallel to each other, and light rays are emitted from the light emergent plane (21) after being emitted into the thick-wall piece (02) from the light incident plane (22);
the back surface of the thick-wall member (02) is provided with a plurality of light incident planes (22) which are parallel to each other, and the light incident planes (22) are arranged at intervals along the left-right direction of the thick-wall member (02 b);
the two adjacent light incident planes (22) are connected through a connecting surface (24), and the normal direction of the connecting surface (24) is perpendicular to the front-back direction of the thick-wall piece (02);
the front surface of the thick-wall part (02) is also provided with a plurality of connecting step surfaces (23), and two adjacent light emergent planes (21) are connected through one connecting step surface (23);
the normal direction of the connecting step surface (23) is perpendicular to the front-rear direction of the thick-wall member (02).
2. The vehicle lamp according to claim 1, characterized in that the angle between the connection step surface (23) and the light exit plane (21) is greater than or equal to 90 °.
3. The automotive lamp according to claim 1, characterized in that the light guide (01) comprises a first light guide (01 a), the thick-walled member (02) comprises a first thick-walled member (02 a), and the outer surface of the first light guide (01 a) is provided with light distribution teeth (11), a light-emitting cambered surface (12) and two light-converging guide surfaces (13);
the light distribution teeth (11) and the light emergent cambered surfaces (12) are oppositely arranged, the light distribution teeth (11) and the light emergent cambered surfaces (12) are connected through two light condensation guide surfaces (13), and the light emergent cambered surfaces (12) face to the back surface of the first thick-wall part (02 a).
4. The automobile lamp according to claim 1, wherein the light guide (01) further comprises a second light guide (01 b), the thick-wall member (02) comprises a second thick-wall member (02 b), an outer surface of the second light guide (01 b) is provided with auxiliary light distribution teeth (14), the auxiliary light distribution teeth (14) are arranged along a length direction of the second light guide (01 b), and part of light of the light source is emitted from an upper surface (26) of the second thick-wall member (02 b) after being reflected by the auxiliary light distribution teeth (14) and being incident on the second thick-wall member (02 b).
5. The automotive lamp according to claim 4, characterized in that the auxiliary light distribution tooth (14) is located on the upper surface (26) of the second light guide (01 b), and part of the light source is reflected by the auxiliary light distribution tooth (14) and then directed to the lower surface (27) of the second thick-wall member (02 b), and the light is reflected by the lower surface (27) of the second thick-wall member (02 b) and then is emitted from the upper surface (26) of the second thick-wall member (02 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110112397.3A CN112902102B (en) | 2021-01-27 | 2021-01-27 | Automobile lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110112397.3A CN112902102B (en) | 2021-01-27 | 2021-01-27 | Automobile lamp |
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| CN112902102A CN112902102A (en) | 2021-06-04 |
| CN112902102B true CN112902102B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110112397.3A Active CN112902102B (en) | 2021-01-27 | 2021-01-27 | Automobile lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864731B (en) * | 2021-09-08 | 2024-06-11 | 奇瑞汽车股份有限公司 | Uniform light thick wall structure |
| CN116697294B (en) * | 2023-08-01 | 2023-12-15 | 领为视觉智能科技(宁波)有限公司 | Light guide assembly of special-shaped car lamp and car |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211176641U (en) * | 2019-12-25 | 2020-08-04 | 浙江嘉利（丽水）工业股份有限公司 | Special-shaped thick-wall part for automobile steering lamp |
| CN111561683A (en) * | 2020-06-08 | 2020-08-21 | 东风汽车集团有限公司 | High-efficiency high-uniformity automobile position lamp arrangement structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6174329B2 (en) * | 2013-02-07 | 2017-08-02 | 株式会社小糸製作所 | Vehicle lighting |
| CN204026521U (en) * | 2014-08-07 | 2014-12-17 | 湖南福安工业有限公司 | For motor vehicle light-strip structure |
| CN106523986A (en) * | 2016-10-31 | 2017-03-22 | 马瑞利汽车零部件(芜湖)有限公司 | Light curtain automobile tail light with gradual change effect |
| CN206145562U (en) * | 2016-11-09 | 2017-05-03 | 上汽大众汽车有限公司 | Car light with thick wall effect |
| CN208595510U (en) * | 2018-07-27 | 2019-03-12 | 嘉兴海拉灯具有限公司 | A kind of light guide assemblies and a kind of car light for car light |
| CN111928200A (en) * | 2020-08-27 | 2020-11-13 | 恒大新能源汽车投资控股集团有限公司 | Optical system of thick-wall part and car lamp |
| CN112146052A (en) * | 2020-09-10 | 2020-12-29 | 马瑞利汽车零部件(芜湖)有限公司 | Light guide for automobile lamp |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211176641U (en) * | 2019-12-25 | 2020-08-04 | 浙江嘉利（丽水）工业股份有限公司 | Special-shaped thick-wall part for automobile steering lamp |
| CN111561683A (en) * | 2020-06-08 | 2020-08-21 | 东风汽车集团有限公司 | High-efficiency high-uniformity automobile position lamp arrangement structure |
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Address after: 430056 No. 10 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Wuhan, Hubei Applicant after: DONGFENG MOTER Co.,Ltd. Address before: 510800, Fengshen Road, Huadu District, Guangdong, Guangzhou 12 Applicant before: DONGFENG MOTER Co.,Ltd. |
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