CN108626679B - Light guide-based light source assembly for motor vehicle - Google Patents
Light guide-based light source assembly for motor vehicle Download PDFInfo
- Publication number
- CN108626679B CN108626679B CN201810491865.0A CN201810491865A CN108626679B CN 108626679 B CN108626679 B CN 108626679B CN 201810491865 A CN201810491865 A CN 201810491865A CN 108626679 B CN108626679 B CN 108626679B
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- CN
- China
- Prior art keywords
- light guide
- light
- led
- light emitting
- degrees
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Links
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- 238000004806 packaging method and process Methods 0.000 claims description 16
- 238000005538 encapsulation Methods 0.000 claims description 4
- 238000005286 illumination Methods 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 235000009537 plain noodles Nutrition 0.000 description 1
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
- 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
- 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
- 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
-
- 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
- F21S43/242—Light guides characterised by the emission area
- F21S43/246—Light guides characterised by the emission area having two or more output branches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- 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)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a light guide-based light source assembly for a motor vehicle, and belongs to the field of vehicle lamp illumination. The LED light source comprises a semitransparent inner lampshade, a light guide support, LEDs and an LED module, wherein the light guide is arranged on the light guide support, the LEDs arranged in the middle area of a light emitting surface emit light in different directions, patterns are designed in the connecting area between two light guide branches, light entering from the side face is refracted to coincide with the direction of a reference axis of a vehicle, and therefore uniform light distribution is formed through the semitransparent inner lampshade with a diffusion function, and the light emitting surface of the whole position lamp is finally uniformly lightened.
Description
Technical Field
The invention belongs to the field of illumination of vehicle lamps, and particularly relates to a light source assembly for a motor vehicle based on a light guide.
Background
With the popularization of automobiles and the continuous improvement of the requirements of users on the appearance of automobiles, the requirements of various circles on the shapes of automobiles are also more and more severe, especially on the shapes of automobile lamps. In recent years, light guides have been widely used in automobile lamps due to their simple structure, small design space, and high degree of freedom in molding. At present, a light guide structure generally adopts a circular tube with the diameter of 5-10mm, the light guide is placed on a light guide bracket, and an LED light source is arranged at the end head of the light guide, so that the light guide can emit light freely in the range of modeling design.
The half-attenuation angle of the current LED light source is usually single-side 60 degrees, so when the combination of the light guide and the LED light source is used for meeting various modeling requirements, the LED light source is required to be shielded or hidden, the length of the light guide exceeds the light emitting surface of the position lamp, in addition, enough space is reserved on the light guide incident surface for arranging the LED light source and the LED circuit board, and if the space of the lamp is narrow, the optical structure cannot be arranged at all.
Disclosure of Invention
In order to solve the problem that the position lamp uniformly emits light when the optical structure cannot be arranged due to the limitation of the sheet metal and the modeling of the car lamp, the invention provides the light source component for the motor vehicle based on the light guide, which has a simple and reasonable structure and is used for the motor vehicle under the condition that the LED light source is not shielded.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a light source subassembly for motor vehicle based on light guide, it includes semitransparent inner lamp shade, the light guide support, side luminous LED, ordinary encapsulation LED and LED module, light guide and LED module are all fixed on the light guide support, side luminous LED and ordinary encapsulation LED are in the intermediate zone of LED light emitting surface, light is given out light to different directions and get into the light guide, see through semitransparent inner lamp shade that has the diffusion performance after being reemitted by the light guide, LED light emitting surface is parallel with the income plain noodles of light guide, the light guide divide into first light guide branch and second light guide branch, connect through convex decorative pattern between two light guide branches, convex decorative pattern is with light refraction to semitransparent inner lamp shade, connect the dark space between the light guide of different directions.
Further, the convex patterns are distributed on the front and the side of the light inlet area of the light guide, and the convex patterns deflect the light emitting direction of the common packaged LED to coincide with the reference axis direction of the vehicle.
Further, the light guide is positioned between the translucent inner light cover and the light guide bracket, and the translucent inner light cover is positioned on the front surface of the light guide.
Further, the side-emitting LEDs are positioned right behind the convex patterns and on the side surface of the first light guide branch;
The light emitting direction of the common packaging LED is perpendicular to the LED module, the included angle between the light emitting direction of the common packaging LED and the reference axis direction of the vehicle is-25 degrees to 25 degrees, the light emitting center of the common packaging LED is not completely overlapped with the center of the first light guide branch, and the included angle between the center line of the first light guide branch and the reference axis of the vehicle is 65 degrees to 115 degrees.
The beneficial effects are that:
1. And the connecting area between the two light guides refracts light entering from the side face to the reference axis direction of the vehicle according to the design pattern of the common packaging LED, so that uniform light distribution is formed on the semitransparent inner lampshade with the diffusion performance, and finally the luminous surface of the lamp at the whole position is uniformly lightened.
2. The light guide is arranged between the semitransparent inner lampshade with the diffusion performance and the light guide support, the semitransparent inner lampshade is located on the front face of the light guide, the LEDs arranged in the middle area of the light emitting face emit light in different directions, the whole light guide is enabled to emit light evenly, and the whole light emitting face is evenly lightened through total reflection of light rays in the light guide.
3. Light emitted by the common packaging LED directly enters the light guide, and the direction is uniformly lightened through total internal reflection of the light guide; light emitted by the side-emitting LED enters another light guide in different directions, the wall thickness of the tail end of the light guide can be freely adjusted according to the space of the lamp, and the problem that a dark area exists after the area is lighted due to the fact that an optical structure cannot be arranged in the area due to limitation of a metal plate of a vehicle body is effectively solved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the light guiding region according to an embodiment of the present invention.
In the figure: the LED lamp comprises a 1-semitransparent inner lampshade, a 2-light guide, a 3-light guide support, a 4-side light emitting LED, a 5-common packaging LED, a 6-LED module, 201-first light guide branches, 202-second light guide branches, 203-convex patterns, 21-side surfaces of a light guide light inlet region and 22-front surfaces of the light guide light inlet region.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The embodiment proposes a light source component for a motor vehicle based on a light guide, as shown in fig. 1, the light source component comprises a semitransparent inner lampshade 1, a light guide 2, a light guide support 3, a side light emitting LED 4, a common packaging LED 5 and an LED module 6, wherein the light guide 2 and the LED module 6 are all fixed on the light guide support 3, the light guide 2 is positioned between the semitransparent inner lampshade 1 and the light guide support 3, the semitransparent inner lampshade 1 is positioned on the front surface of the light guide 2, the side light emitting LED 4 and the common packaging LED 5 are positioned in the middle area of the light emitting surface of the LED and emit light in different directions, the light emitting surface of the LED is parallel to the light inlet surface of the light guide 2, the light guide 2 is divided into a first light guide branch 201 and a second light guide branch 202, the two light guide branches are connected through a convex pattern 203, the side light emitting LED 4 is positioned right behind the convex pattern 203 and on the side surface of the first light guide branch 201, the light emitting direction of the common packaging LED 5 is perpendicular to the LED module 6, the light emitting direction of the common packaging LED 5 is an included angle of-25 degrees between the light emitting direction of the common packaging LED 5 and the reference axis direction of the vehicle, the center of the light emitting center of the common packaging LED 5 and the center of the first light guide branch 201 is not completely overlapped, the center light emitting angle of the center of the light emitting light of the first light guide branch 201 is the light emitting light of the reference angle between the light emitting light and the light guide 5 and the light emitting light source 2 and the light source is equal to the light emitting light from the light source 5 and the light emitting center plane of the light source through the light source 2 and the reference light source 2, and the light emitting point is equal through the light emitting point and the light emitting surface and the light source.
As shown in fig. 2, the convex patterns 203 are distributed on the front 22 and the side 21of the light inlet region of the light guide 2, and the light emitted by the common packaged LEDs 5 on the LED module 6 passes through the light guide 2, and part of the light enters the locally thickened region of the light guide 2, and is refracted at the connecting patterns 203, so that the light originally transmitted to the outside direction of the vehicle is deflected to coincide with the reference axis direction of the vehicle. The included angle alpha between one side inclined surface of the convex pattern 203 and the basal plane of the back surface of the light guide 2 is 50-90 degrees, and the included angle beta between the other side inclined surface of the convex pattern 203 and the basal plane of the back surface of the light guide 2 is 0-60 degrees. The calculation of the angles alpha and beta should be optimized in a specific structure that the light incident from the common packaged LED 5 is just deflected to coincide with the reference axis direction of the vehicle, so as to light the dark area between the two LEDs. And the light guide teeth originally existing on the light guides 2 on the left side and the right side realize the uniform overall light emission of the position lamp.
It should be apparent to those skilled in the art that various modifications or variations can be made in the present invention without requiring any inventive effort by those skilled in the art based on the technical solutions of the present invention.
Claims (1)
1. The utility model provides a light source subassembly for motor vehicle based on light guide, it includes semitransparent inner lamp shade (1), light guide (2), light guide support (3), side luminous LED (4), ordinary encapsulation LED (5), and LED module (6), light guide (2) are all fixed on light guide support (3) with LED module (6), side luminous LED (4) and ordinary encapsulation LED (5) are in the intermediate region of LED light emitting surface, light to different directions and get into light guide (2), see through semitransparent inner lamp shade (1) that have the diffusion performance after being reemitted by light guide (2), its characterized in that: the LED light emitting surface is parallel to the light incident surface of the light guide (2), the light guide (2) is divided into a first light guide branch (201) and a second light guide branch (202), the two light guide branches are connected through convex patterns (203), the convex patterns (203) refract light to the semitransparent inner lampshade (1) and are connected with dark areas among the light guides (2) in different directions;
The convex patterns (203) are distributed on the front surface (22) and the side surface (21) of the light inlet area of the light guide (2), and the convex patterns (203) deflect the light emitting direction of the common packaging LED (5) to coincide with the reference axis direction of the vehicle;
the light guide (2) is positioned between the semitransparent inner lampshade (1) and the light guide bracket (3), and the semitransparent inner lampshade (1) is positioned on the front surface of the light guide (2);
The side light emitting LEDs (4) are positioned right behind the convex patterns (203) and on the side face of the first light guide branch (201);
The light emitting direction of the common packaging LED (5) is perpendicular to the LED module (6), an included angle between the light emitting direction of the common packaging LED (5) and the reference axis direction of the vehicle is-25 degrees to 25 degrees, the light emitting center of the common packaging LED (5) is not completely overlapped with the center of the first light guide branch (201), and the included angle between the center line of the first light guide branch (201) and the reference axis of the vehicle is 65 degrees to 115 degrees;
The included angle alpha between one side inclined surface of the convex pattern (203) and the back surface base surface of the light guide (2) is 50-90 degrees, and the included angle beta between the other side inclined surface of the convex pattern (203) and the back surface base surface of the light guide (2) is 0-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810491865.0A CN108626679B (en) | 2018-05-22 | 2018-05-22 | Light guide-based light source assembly for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810491865.0A CN108626679B (en) | 2018-05-22 | 2018-05-22 | Light guide-based light source assembly for motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108626679A CN108626679A (en) | 2018-10-09 |
| CN108626679B true CN108626679B (en) | 2024-05-17 |
Family
ID=63693832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810491865.0A Active CN108626679B (en) | 2018-05-22 | 2018-05-22 | Light guide-based light source assembly for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108626679B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539159B (en) * | 2019-01-03 | 2024-01-26 | 华域视觉科技(上海)有限公司 | Optical module and car light |
| WO2021212370A1 (en) * | 2020-04-22 | 2021-10-28 | 诚益光电科技股份有限公司 | Lighting device and optical module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2363738A2 (en) * | 2010-02-24 | 2011-09-07 | Stanley Electric Co., Ltd. | Lighting device for vehicle |
| JP2015076310A (en) * | 2013-10-10 | 2015-04-20 | スタンレー電気株式会社 | Vehicle lighting appliance |
| CN105276486A (en) * | 2015-11-13 | 2016-01-27 | 华晨汽车集团控股有限公司 | Light guide backlight structure for switch block |
| CN106500021A (en) * | 2015-09-01 | 2017-03-15 | 常州星宇车灯股份有限公司 | Automobile Rear Position Lamp guide structure of the light inlet with coupling device |
| CN107489954A (en) * | 2016-05-19 | 2017-12-19 | 标致·雪铁龙汽车公司 | Backlight illuminating system for vehicle |
| CN208222386U (en) * | 2018-05-22 | 2018-12-11 | 常州星宇车灯股份有限公司 | A kind of light source assembly for motor vehicles based on light guide |
| CN208253450U (en) * | 2018-03-05 | 2018-12-18 | 一汽-大众汽车有限公司 | A kind of car light guide structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2864204B1 (en) * | 2003-12-19 | 2006-10-27 | Valeo Vision | SIGNALING OR LIGHTING DEVICE, IN PARTICULAR FOR MOTOR VEHICLE |
-
2018
- 2018-05-22 CN CN201810491865.0A patent/CN108626679B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2363738A2 (en) * | 2010-02-24 | 2011-09-07 | Stanley Electric Co., Ltd. | Lighting device for vehicle |
| JP2015076310A (en) * | 2013-10-10 | 2015-04-20 | スタンレー電気株式会社 | Vehicle lighting appliance |
| CN106500021A (en) * | 2015-09-01 | 2017-03-15 | 常州星宇车灯股份有限公司 | Automobile Rear Position Lamp guide structure of the light inlet with coupling device |
| CN105276486A (en) * | 2015-11-13 | 2016-01-27 | 华晨汽车集团控股有限公司 | Light guide backlight structure for switch block |
| CN107489954A (en) * | 2016-05-19 | 2017-12-19 | 标致·雪铁龙汽车公司 | Backlight illuminating system for vehicle |
| CN208253450U (en) * | 2018-03-05 | 2018-12-18 | 一汽-大众汽车有限公司 | A kind of car light guide structure |
| CN208222386U (en) * | 2018-05-22 | 2018-12-11 | 常州星宇车灯股份有限公司 | A kind of light source assembly for motor vehicles based on light guide |
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| Publication number | Publication date |
|---|---|
| CN108626679A (en) | 2018-10-09 |
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