CN104964228B - A kind of LED-light guide based on reverse principle of luminosity - Google Patents
A kind of LED-light guide based on reverse principle of luminosity Download PDFInfo
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- CN104964228B CN104964228B CN201510433573.8A CN201510433573A CN104964228B CN 104964228 B CN104964228 B CN 104964228B CN 201510433573 A CN201510433573 A CN 201510433573A CN 104964228 B CN104964228 B CN 104964228B
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- light guide
- led
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- bending section
- light source
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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
-
- 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
- F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
-
- 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
- F21S43/10—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
- F21S43/245—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
- F21S43/27—Attachment thereof
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention relates to a kind of LED-light guide based on reverse principle of luminosity, belong to Vehicular lamp technical field.Including base, the heat abstractor of base end face, the circuit board being fixed on base and light guide fixed plate are arranged on, LED light source on circuit boards is set and is arranged in light guide fixed plate and photoconductive tube corresponding with LED light source, the light guide fixed plate is located on circuit board, the photoconductive tube is provided with the first bending section close to light source input end, and the light guide pipe surface is provided with the continuous equilateral triangle projection line from the starting of the first bending section.The reverse light source of shaped form of the present invention and light guide with equilateral triangle projection line disclosure satisfy that the requirement of plan boundary, and gradual to light effect, uniformity good.
Description
Technical field
The invention belongs to Vehicular lamp technical field, and in particular to a kind of LED-light guide based on reverse principle of luminosity.
Background technology
Generally, car light includes headlamp, fog lamp, blinker, brake lamp, back-up lamp etc..Headlamp is used for vehicle
Front send illuminating ray, to ensure that field of front vision is clear in driving at night.Fog lamp, which is used to assist in ensuring that in the greasy weather, to be driven
The visual field for the person of sailing.In addition, opening direction indicator lamp, brake lamp, back-up lamp, can make other vehicles recognize the corresponding driving of the car
Behavior.
Existing car light is typically realized by halogen bulb.With the development of science and technology in order to improve outward appearance and modeling effect,
Current car light starts using light guide as recoil simulator.
The application target of light guide is by realizing uniform appearance, makes vehicle modelling element more abundant,
The technology sense of vehicle improves, and embodies design grade by the characteristic moulding of finished car, and by controlling light guide thickness section shape
The size shape of shape, posterior incisions so that car light is consistent with the shaping style of vehicle.The light guide designed at present, due to from
The incident light of introduction part gradually weakens, therefore the region of neighbouring introduction part is brighter, but with away from introduction part, it may appear that it is more next
The problem of darker.
It is common in order to realize light guide even results and the specific demand of moulding can be met in current light guide techniques
Way, it is exactly respectively to add a LED light source at the both ends of light guide, and requires that light guide keeps straight line as far as possible in itself, or
Person is in the introducing section of light source, and light guide itself have to keep straight (not have too many bending or radian) and light guide axis is in
In approximately the same plane, otherwise, the light loss that light is propagated in light guide will be very big, and not only uniformity is difficult to meet, and seriously
When, may state compulsion regulation can not all pass through.As shown in Figure 1 and Figure 2, it is current light guide design method.Wherein, Fig. 1
For linear pattern light guide, as long as the conducting path of light guide surface is reasonable in design, light decay is minimum, and the uniformity for lighting rear light guide is easy to
Meet；Fig. 2 is the extension of linear pattern light guide, due to still being protected over long distances in (A sections in Fig. 2) very much close to the light guide of light source one end
Hold as linear pattern, thus its light decay is smaller, realizes that qualified luminous intensity distribution difficulty is relatively small.The design bureau of Fig. 1 linear pattern light guide
Limit exists, and the length of light guide can not be long, and otherwise due to the continuous decay of light light in transmitting procedure, the effect of the end of light guide will
It is very dim.The design requirement of uniformity is not met thus.And for Fig. 2 photoconductive tube, not only strictly to control light guide A's
Length, the radian of bent portion is also controlled, if radian is excessive, the possibility of the energy jump of light is higher, thus optical attenuation will
It is very serious.And Fig. 1, Fig. 2 light guide can not meet moulding for some actual particular demands and plan boundary (around light fixture
Space) requirement.
The content of the invention
A kind of the defects of purpose of the present invention is aiming at prior art, there is provided LED-light guide based on reverse principle of luminosity.
The technical solution adopted by the present invention is：Including base, it is arranged on the heat abstractor of base end face, is fixed on base
Circuit board and light guide fixed plate, LED light source on circuit boards is set and be arranged in light guide fixed plate and with LED light source pair
The photoconductive tube answered, the light guide fixed plate are located on circuit board, and the photoconductive tube is curved provided with first close to light source input end
Tune, the light guide pipe surface are provided with the continuous equilateral triangle projection line from the starting of the first bending section.
Further preferred structure, the photoconductive tube are provided with the second bending section close to light source input end, and described second is curved
Tune is located at the first bending section rear and is arranged at intervals with the first bending section.
Further preferred structure, the photoconductive tube are provided with the 3rd bending section close to end.
Further preferred structure, the bent angle alpha of first bending section1, the second bending section bent angle alpha2With
The bent angle alpha of three bending sections3It is all higher than 120 °.Further preferred structure, the circuit board include substrate, the substrate one
Lateral edges are provided with mounting groove, and the substrate is provided with the first fixing hole for being used for fixing with base.
Further preferred structure, the LED light source are located at close to substrate side edge.
Further preferred structure, the light guide fixed plate include bottom plate, and the photoconductive tube is vertically installed in bottom plate side
Edge protrudes from bottom plate and directly over the LED light source, and the bottom plate is provided with the second fixing hole for being used to fixing with base, the
One alignment pin and the hanger fixed for peripheral component, the hanger are vertical with bottom plate.
Further preferred structure, the light pipe end are provided with extremity fixing structure, the extremity fixing structure bag
Fixed block is included, the fixed block, which is provided with, is used for peripheral component positioning fixed the second alignment pin and the 3rd fixing hole.
Further preferred structure, the heat abstractor are that some be parallel to each other for being fixed on base end face is arranged vertically
Fin.
Further preferred structure, the base upper side, which is provided with, is used for the fixing screws that peripheral component is fixed.
The forward-propagating mode that the present invention solves existing linear pattern light guide or end bend type light guide can not meet reality
The problem of moulding of border particular demands and plan boundary (light fixture surrounding space) require, and the present invention has solid space effect,
The reverse light source of shaped form of the invention and the light guide with equilateral triangle projection line disclosure satisfy that the requirement of plan boundary, and gradually
Entering formula, to light effect, uniformity good.
Brief description of the drawings
Fig. 1 is the first existing guide structure schematic diagram；
Fig. 2 is existing second of guide structure schematic diagram；
Fig. 3 is schematic structural view of the invention；
Fig. 4 is stereogram of the present invention；
Fig. 5 is the structural representation of light guide fixed plate；
Fig. 6 is the connection figure between light guide fixed plate and circuit board；
Fig. 7 is the structural representation of light guide extremity fixing structure；
Fig. 8 is board structure of circuit figure；
Fig. 9 is the design curvature of the first photoconductive tube；
Figure 10 is the design curvature of second of photoconductive tube；
Figure 11 is photoconductive tube light guiding surface schematic diagram；
Figure 12 is equilateral triangle projection line side diagrammatic cross-section；
Figure 13 is propagation principle figure (1) of the light in photoconductive tube；
Figure 14 is propagation principle figure (2) of the light in photoconductive tube；
Figure 15 is equilateral triangle projection line initiation region schematic diagram.
In figure, (bending sections of 121- first, the bending sections of 122- second, 123- the 3rd are curved for 101-LED light sources, 102- photoconductive tubes
Tune, 124- equilateral triangle projections line), 103- heat abstractors (131- fin), 104- bases (141- fixing screws),
105- circuit boards (151- substrates, 152- mounting grooves, the fixing holes of 153- first), 106- light guides fixed plate (161- bottom plates, 162- cones
Shape pin, the fixing holes of 163- second, the alignment pins of 164- first, 165- hangers), 107- extremity fixing structures (171- fixed blocks, 172-
Second alignment pin, the fixing holes of 173- the 3rd).
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, is easy to that this hair is well understood
It is bright, but they do not form to the present invention and limited.
As shown in Figure 3, Figure 4, the present invention includes base 104, is arranged on the heat abstractor 103 of the bottom surface of base 104, is fixed on
Circuit board 105 and light guide fixed plate 106 on base 104, the LED light source 101 being arranged on circuit board 105 and it is arranged on light guide
In fixed plate 106 and photoconductive tube 102 corresponding with LED light source 101, light guide fixed plate 106 are located on circuit board 105, light guide
Pipe 102 close to light source input end be sequentially provided with interval the first bending section 121 and the second bending section 122, photoconductive tube 102 it is close
End is provided with the 3rd bending section 123, and photoconductive tube 102 (photoconductive tube along bending direction on the inside of) surface is provided with from the first bending section
The continuous equilateral triangle projection line 124 of 121 startings.The bent angle alpha of first bending section 1211More than 120 °.Second bending
The bent angle alpha of section 1222More than 120 °.The bent angle alpha of 3rd bending section 1233More than 120 °.Heat abstractor 103 is fixation
Some fin 131 for arranging vertically of being parallel to each other in the bottom surface of base 104, its main function are by circuit board, LED light source production
Raw substantial amounts of heat derives, prevent that the section temperature of LED in itself is too high, safeguard LED normal service life, fin uses straight
Column, its purpose is to increase the surface area of fin as far as possible, improve radiating efficiency.The upper side of base 104, which is provided with, to be used for
The fixing screws 141 that peripheral component is fixed.
Wherein, as shown in Figure 5, Figure 8, circuit board 105 includes substrate 151, and the lateral edges of substrate 151 1 are provided with mounting groove 152,
Wherein mounting groove 152 is used to avoid the cone pin 162 at the second fixing hole 163.Substrate 151, which is provided with, is used for what is fixed with base
First fixing hole 153.LED light source 101 is located at includes two kinds close to the side edge of substrate 151, wherein LED light source 101.Light guide
Fixed plate 106 includes bottom plate 161, and the photoconductive tube 102 is vertically installed in the lateral edges of bottom plate 161 1 and protrudes from bottom plate 161 and position
Directly over LED light source 101, bottom plate 161 is provided with the second fixing hole 163, the first alignment pin for being used to fix with base 104
164 and the hanger 165 fixed for peripheral component, hanger 165 is vertical with bottom plate 161, wherein the second fixing hole 163 is including one
Circular hole and an elongated hole.
As shown in fig. 7, the end of photoconductive tube 102 is provided with extremity fixing structure 107, extremity fixing structure 107 includes fixing
Block 171, fixed block 171, which is provided with, is used for peripheral component positioning fixed the second alignment pin 172 and the 3rd fixing hole 173.
In the present invention, described " reverse " refer to light the direction of propagation it is in opposite direction with designing under normal circumstances.
In the present invention, from Philips companies LAF6H as light source, the rated power of the light source is 2W, passes through tune
Its electric current is saved, can obtain different brightness；Photoconductive tube, it is preferable using transparent PC materials, temperature tolerance.The shape root of whole light guide
Determined according to the modeling requirement of vehicle, to meet the moulding demand in the case of photoconductive tube is not luminous and luminous two kinds；Fixed spiral shell
Nail, is mainly used in two LED drive units, fin is fixed on bodywork parts together with photoconductive tube.
As shown in fig. 6, it is not directly to contact between light guide fixed plate and circuit board, light guide fixed plate is to pass through cone pin
162 fix with base, and gap between circuit board be present, not interfered between the light source and light guide on circuit board,
Prevent from interfering under the more severe vibration environment of vehicle between LED light source and photoconductive tube, cause LED light source to damage.
Have two groups of LED light sources on circuit board, provide respectively the different photochromic and function of brightness requirement (such as：Position lamp/day
Between driving lamp, steering indicating light).
Fig. 9 and Figure 10 is the curvature chart of used two light guides respectively, due to the two angles：First bending section α1It is curved
Bent 144.65 ° of angle, the first bending section α2The presence that 130.38 ° of angle of bend, and a kind of stereoeffect, light is presented in whole light guide
The decay for leading middle luminous energy is more than (prior art Fig. 1, Fig. 2) under normal circumstances.And in the design of this light guide, it is contemplated that car
The factor of installing space and shape-designing requirement, employ light source being placed on the larger one end of curvature, such light is passing on
During broadcasting, the loss of light can be bigger.In the design, by contrast by light source be placed on different positions (Fig. 9 and Figure 10 kind
A, B location), it is found that the loss of light is as shown in the table：
| LED light flux | Light source is in A points, the brightness value of B points | Light source is in B points, the brightness value of A points | |
| Linear pattern light guide | 120lm | 80lm/66% | 79lm/65% |
| Light guide 1 | 120lm | 55lm/45.8% | 50lm/41.6% |
| Light guide 2 | 120lm | 60lm/50% | 53lm/44.1% |
It can be seen that in the case of of the same race, when light source is in diverse location, light loss of the light source in B points is bigger.Wherein, it is right
It is the used scheme when light guide moulding is more complicated at present in light source in the situation of A points.And for light guide B points this
Kind light source arrangement, due to light decay, seldom use.The present invention is based on light guide forward-propagating used by tradition
In the case that mode (light source is in A points) can not meet moulding and plan boundary (light fixture surrounding space), act in a diametrically opposite way, propose
A kind of light guide design thinking based on reverse principle of luminosity, to meet moulding (gradual to light effect, uniformity is good) and meet
The requirement of plan boundary.
But to make up bigger light loss, when designing the plane of refraction of light guide surface (as shown in Figure 11, Figure 12),
The equilateral triangle decorative pattern scheme of use.This decorative pattern is relatively small in the loss of the bigger occasion luminous flux of curvature, so
Can makes up the foregoing description because luminous flux loses larger situation caused by the position of light source.
Figure 13 and Figure 14 is two kinds of differences that the light that LED light source is sent occurs in the presence of triangle decorative pattern respectively
Light propagation condition.In Figure 13, incident ray 1 is sent after prism A (a triangle decorative pattern) from LED, and it propagates road
Footpath is two-way, and light is projected to the inner surface of light guide along the direction of light 2 and light 3 all the way, so as to allow light to pass through light
The surface led is projected, and another paths project the interior table of light guide by light 5 and light 6 by the direction of refracted light 4 again
Face, so as to be projected by light guide.And refracted light 7 then enters next prism after prism, light propagation principle is the same.
In fig. 14, the incident ray 1 sent from LED light source can send reflection light 2 and refracted light 3, reflected light after prism
Line 2 is projected by the inner surface of light guide.And light 3 is entered in next prism, by light 3, light 4 and light 5 and light
The path of line 6, is propagated, and light 6 is projected by the inner surface of light guide, and light 5 then enters next three by prism
Angular prism.
In above-mentioned light is propagated, after light 3 and light 6 in Figure 13 are projected by light guide inner surface, it can increase
The brightness of light guide surface.And this surface is exactly the normal exiting surface of light guide, it is necessary to reach a kind of uniform effect.Carried on the back in light guide
After face addition triangle decorative pattern, from the point of view of the propagation principle of light, the propagation loss of light can be greatly reduced, for bending
For light guide, and so.In addition, another reason for decorative pattern is arranged in into the light guide back side is to allow client can not be from front
To decorative pattern, because decorative pattern inevitably produces some mass defects in manufacture is processed.
As shown in figure 15, equilateral triangle projection line and it is not all be defined on whole light guide, its starting point just from
Occur the region bent at light source point first, so can preferably reduce the loss of light, greatly improve the propagation efficiency of light.
The light guide designed compared to traditional light according to normal direction, it is proposed by the invention based on reverse principle of luminosity
Light guide lamp there is advantages below：1. moulding and the requirement of design space can be better met, the aesthetic values of whole light fixture
Rise；2. for more flex points, the light guide design of deep camber, attempt to transmit light using equilateral triangle decorative pattern, to reducing light
Loss and raising light energy propagation efficiency tool play a very important role；3. occur as soon as bending for the region close from LED light source
The situation of light guide from the crooked position of light guide, it is necessary to begin to so can not only be reduced as far as possible come guide-lighting with decorative pattern
In the loss of the light of crooked position, and it is also possible that the uniformity being distributed in crooked position light；4. decorative pattern should be arranged
At the back side of light guide, prevent some open defects caused by processing patterns by client perception.
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (7)
1. a kind of LED-light guide based on reverse principle of luminosity, including base (104), the radiating dress for being arranged on base (104) bottom surface
The circuit board (105) and light guide fixed plate (106) that put (103), are fixed on base (104), it is arranged on circuit board (105)
LED light source (101) and it is arranged in light guide fixed plate (106) and photoconductive tube (102) corresponding with LED light source (101), the light
Fixed plate (106) is led to be located on circuit board (105), it is characterised in that：The photoconductive tube (102) sets close to light source input end
There is the first bending section (121), photoconductive tube (102) surface is provided with from the continuous equilateral of the first bending section (121) starting
Triangular hill line (124)；The photoconductive tube (102) is provided with the second bending section (122) close to light source input end, and described second
Bending section (122) is located at the first bending section (121) rear and is arranged at intervals with the first bending section (121)；The photoconductive tube (102)
The 3rd bending section (123) is provided with close to end；The bent angle alpha 1 of first bending section (121), the second bending section (122)
The bent angle alpha 3 of the bending section (123) of bent angle alpha 2 and the 3rd be all higher than 120 °, first bending section (121), second
The curvature corner direction of bending section (122) is not at grade.
A kind of 2. LED-light guide based on reverse principle of luminosity according to claim 1, it is characterised in that：The circuit board
(105) substrate (151) is included, the lateral edges of substrate (151) one are provided with mounting groove (152), and the substrate (151), which is provided with, to be used
In first fixing hole (153) fixed with base (104).
A kind of 3. LED-light guide based on reverse principle of luminosity according to claim 2, it is characterised in that：The LED light source
(101) it is located at close to substrate (151) side edge.
A kind of 4. LED-light guide based on reverse principle of luminosity according to claim 1, it is characterised in that：The light guide is consolidated
Fixed board (106) includes bottom plate (161), and the photoconductive tube (102) is vertically installed in the lateral edges of bottom plate (161) one and protrudes from bottom plate
(161) and it is located at directly over LED light source (101), the bottom plate (161) is provided be used for fixing with base (104) second and consolidated
Determine hole (163), the first alignment pin (164) and the hanger (165) fixed for peripheral component, the hanger (165) and bottom plate
(161) it is vertical.
A kind of 5. LED-light guide based on reverse principle of luminosity according to claim 1, it is characterised in that：The photoconductive tube
(102) end is provided with extremity fixing structure (107), and the extremity fixing structure (107) includes fixed block (171), described solid
Determine block (171) and be provided with the second alignment pin (172) and the 3rd fixing hole (173) for being used for peripheral component positioning fixation.
A kind of 6. LED-light guide based on reverse principle of luminosity according to claim 1, it is characterised in that：The radiating dress
It is some fin (131) arranged vertically that are parallel to each other for being fixed on base (104) bottom surface to put (103).
A kind of 7. LED-light guide based on reverse principle of luminosity according to claim 1, it is characterised in that：The base
(104) upper side, which is provided with, is used for the fixing screws (141) that peripheral component is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433573.8A CN104964228B (en) | 2015-07-22 | 2015-07-22 | A kind of LED-light guide based on reverse principle of luminosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433573.8A CN104964228B (en) | 2015-07-22 | 2015-07-22 | A kind of LED-light guide based on reverse principle of luminosity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104964228A CN104964228A (en) | 2015-10-07 |
| CN104964228B true CN104964228B (en) | 2017-11-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510433573.8A Active CN104964228B (en) | 2015-07-22 | 2015-07-22 | A kind of LED-light guide based on reverse principle of luminosity |
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| CN106939990A (en) * | 2016-01-05 | 2017-07-11 | 欧司朗有限公司 | Light-emitting device for vehicle |
| CN106369549A (en) * | 2016-09-30 | 2017-02-01 | 马瑞利汽车零部件(芜湖)有限公司 | Automobile lamp light guide even in light emitting and free of light spots at tail |
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| WO2019052866A1 (en) * | 2017-09-12 | 2019-03-21 | Lumileds Holding B.V. | Holder for vehicle signaling light |
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| CN108105715B (en) * | 2018-01-18 | 2023-09-01 | 华域视觉科技(上海)有限公司 | Light guide head mounting structure for preventing light guides from mutually crossing light |
| CN109869691A (en) * | 2019-04-18 | 2019-06-11 | 华域视觉科技(上海)有限公司 | Vehicle lamp structure and vehicle |
| CN112728496A (en) | 2019-10-28 | 2021-04-30 | 深圳市绎立锐光科技开发有限公司 | Light source device and lamp |
| DE102019129339A1 (en) * | 2019-10-30 | 2021-05-06 | HELLA GmbH & Co. KGaA | Lighting device for vehicles |
| CN112258948B (en) * | 2020-11-03 | 2022-07-12 | 重庆广播电视大学重庆工商职业学院 | PCB circuit board circuit simulation analysis demonstration teaching device |
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